[RADIOCOMM LIST]

[ANS] ANS-109 AMSAT New Service Weekly Bulletins

2026-04-18T17:11:15Z

April 19, 2026

In this edition:

AMSAT/TAPR Banquet to Feature Ray Roberge, WA1CYB, Update on AMSAT's SDR Gen2
ARISS SSTV Series 31 âWorld Space Commemorationâ Concludes Successfully
AMSAT Participates in CubeSat Developers Workshop 2026
New 2026 ITU Handbook on Amateur and Amateur-Satellite Services Released
Changes to AMSAT TLE Distribution for April 3, 2026
Ambassador Events
ARISS News
Satellite Shorts from All Over

The AMSAT(R) News Service bulletins are a free, weekly news and information service of AMSAT, the Radio Amateur Satellite Corporation. ANS publishes news related to Amateur Radio in Space including reports on the activities of a worldwide group of Amateur Radio operators who share an active interest in designing, building, launching and communicating through analog and digital Amateur Radio satellites.

The news feed on http://www.amsat.org publishes news of Amateur Radio in Space as soon as our volunteers can post it.

Please send any amateur satellite news or reports to: ans-editor [at] amsat.org .

Sign up for free e-mail delivery of the AMSAT News Service Bulletins via the ANS List. Join this list at: https://mailman.amsat.org/postorius/lists/ans.amsat.org/

AMSAT/TAPR Banquet to Feature Ray Roberge, WA1CYB, Update on AMSAT's SDR Gen2

Ray Roberge, WA1CYB, will be the speaker at the 17th annual AMSAT/TAPR Banquet. Roberge, a member of AMSAT's Engineering team, will speak about progress on AMSAT's SDR Gen2 project, including what it does and where it can be used.

AMSAT's SDR Gen2 is a versatile, programmable GNU Radio transceiver/transponder designed for a 1U CubeSat footprint. The transceiver has 144 MHz - 6 GHz continuous coverage with 10 GHz coverage expected as well. The transceiver will

support direct VHF, UHF, L, S, C, and X band operations in all modes - CW, SSB, FT8, NBFM, SSTV, FSTV, etc. and a downlink data rate of up to 1 MBps. This transceiver is being built to fly on GOLF and FoxPlus missions and will be both open source hardware and software.

AMSAT SDR Gen 2 Circuit Board (WA1CYB Graphic)[

The 17th annual AMSAT/TAPR Banquet will be held at the Kohler Presidential Banquet Center on Friday, May 15th at 18:30 EDT. This dinner is always a highlight of the TAPR (Tucson Amateur Packet Radio) and AMSAT (Radio Amateur Satellite Corp.) activities during the Dayton Hamvention.

The Kohler Presidential Banquet Center is located at 4548 Presidential Way, Kettering, Ohio â about 20 minutes away from the Greene County Fairgrounds.

Tickets ($75 each) may be purchased from the AMSAT store at https://www.amsat.org/product-category/amsat-at-hamvention/.

The banquet ticket purchase deadline is Monday, May 11th at 17:00 EDT / 21:00 UTC. Banquet tickets must be purchased in advance and will not be sold at the AMSAT booth. There will be no tickets to pick up at the AMSAT booth. Tickets purchased on-line will be maintained on a list with check-in at the door at the banquet center. Seating is limited to the number of meals reserved with the Kohler caterers based on the number of tickets sold by the deadline.

[ANS thanks the AMSAT Hamvention team for the above information.]

The 2026 Presidentâs Club Coin is Now Here!
Help Support GOLF and FoxPlus.

Annual memberships start at only $20
Join the AMSAT Presidentâs Club today and help
Keep Amateur Radio in Space!
https://www.amsat.org/join-the-amsat-presidents-club/

ARISS SSTV Series 31 âWorld Space Commemorationâ Concludes Successfully

The ARISS Slow Scan Television (SSTV) Series 31 event, themed âWorld Space Commemoration,â ran from April 10 through April 14, 2026. Transmissions were made on 437.550 MHz FM using the Robot 36 mode from the International Space Station. Images celebrated major space milestones, including Cosmonautics Day and the Space Shuttle program.

ARISS SSTV Award (N0UW Photo)

Amateur radio operators worldwide captured the SSTV pictures and submitted them to the official ARISS SSTV gallery at https://ariss-usa.org/ARISS_SSTV/. Many participants received commemorative certificates for successful receptions. The event provided an excellent opportunity for stations of all experience levels to practice satellite reception techniques and enjoy space-themed imagery.

[ANS thanks ARISS for the above information]

AMSAT Remove Before Flight Key Tags Now Available
Yes, These are the Real Thing!

Your $20 Donation Goes to Help Fly a FoxPlus Satellite
Includes First Class Postage (Sorry â U.S. Addresses Only)
Order Today at https://www.amsat.org/product/amsat-remove-before-flight-keychain

AMSAT Participates in CubeSat Developers Workshop 2026

AMSAT was well represented at the CubeSat Developers Workshop 2026 (CDW26), held April 14â16 at California Polytechnic State University in San Luis Obispo, California. AMSAT President Drew Glasbrenner, KO4MA, delivered updates on amateur satellite projects and conducted live on-air demonstrations using the RS-44 linear transponder in SSB mode. Workshop attendees were able to listen to and participate in real-time amateur radio satellite contacts, experiencing firsthand the capabilities of the amateur-satellite service.

The annual workshop brings together students, educators, researchers, and industry professionals to share advances in small-satellite technology through presentations, panels, and exhibits. AMSATâs active participation continues to strengthen connections between the amateur radio community and the broader CubeSat developer ecosystem, opening doors for future collaborative amateur radio payloads.

[ANS thanks Drew Glasbrenner, KO4MA, AMSAT President, for the above information.]

New 2026 ITU Handbook on Amateur and Amateur-Satellite Services Released

The International Telecommunication Union (ITU) has published the 2026 edition of the Handbook on Amateur and Amateur-Satellite Services . The updated reference provides comprehensive information on the amateur and amateur-satellite services, including relevant ITU regulatory texts, technical guidelines, and operational practices.

IARU President Tim Ellam, VE6SH/G4HUA, highlighted the handbookâs release, noting its value to national administrations, regulators, and amateur radio organizations worldwide. The document serves as an essential resource for anyone involved in frequency coordination, licensing, or satellite project planning.

The handbook is available for download free-of-charge at https://www.itu.int/pub/R-HDB-52-2026.

[ANS thanks the ITU and the IARU for the above information.]

Join AMSAT or Renew Now. . .
Download a Free âGetting Started with Amateur Satellitesâ Book!

Get the latest edition just for doing the right thing!
Visit https://www.amsat.org/membership-specials/ for more details.

Changes to AMSAT TLE Distribution for April 17, 2026

Two Line Elements or TLEs, often referred to as Keplerian elements or keps in the amateur community, are the inputs to the SGP4 standard mathematical model of spacecraft orbits used by most amateur tracking programs. Weekly updates are completely adequate for most amateur satellites. TLE bulletin files are updated daily in the first hour of the UTC day. New bulletin files will be posted immediately after reliable elements become available for new amateur satellites. More information may be found at https://www.amsat.org/keplerian-elements-resources/.

The following satellites have permanent object numbers assigned:

SAL-E NORAD Cat ID 68458
DISCO 2 NORAD Cat ID 68431
HADES-SA (SpinnyONE) NORAD Cat ID 68446
JACK-002 NORAD Cat ID 68417
PARUS-6U1 NORAD Cat ID 68456

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager for the above information.]

ARISS NEWS

Amateurs and others around the world may listen in on contacts between amateurs operating in schools and allowing students to interact with astronauts and cosmonauts aboard the International Space Station. The downlink frequency on which to listen is 145.800 MHz worldwide.

Successful Contacts
Scouts Australia Western Australia Branch, Mount Hawthorn, Western Australia, Australia, telebridge via AB1OC.
The ISS callsign was NA1SS.
The crewmember was Jack Hathaway, KJ5NIV.
The ARISS mentor was Shane Lynd, VK4KHZ.
Contact was successful on Friday, April 17, 2026 at 10:22 UTC.

Scheduled Contacts
Elementary School âSlava Raskajâ, Ozalj, Croatia, direct via 9A1CUA.
The ISS callsign was OR4ISS.
The crewmember was Chris Williams, KJ5GEW.
The ARISS mentor was Ferrario Gianpietro, IZ2GOJ.
Contact was successful on Monday, April 13, 2026 at 08:57 UTC .

University of Bordeaux (IUT de Bordeaux), GEII department, Gradignan, France, direct via F5KBW.
The ISS callsign was OR4ISS.
The crewmember was Sophie Adenot, KJ5LTN.
The ARISS mentor was Joseph Le Moine, F6ICS.
Contact is go for Monday, April 20, 2026 at 08:12:45 UTC.

Diamond Harbour School, Christchurch, New Zealand, telebridge via IK1SLD.
The ISS callsign is presently scheduled to be OR4ISS.
The scheduled crewmember is Jack Hathaway, KJ5NIV.
The ARISS mentor is Shane Lynd,VK4KHZ.
Contact is go for Monday, April 20, 2026 at 09:51:10 UTC.

ASU Preparatory STEM Academy, Mesa, AZ, direct via WB7TJD.
The ISS callsign is presently scheduled to be NA1SS.
The scheduled crewmember is Chris Williams KJ5GE, Jack Hathaway KJ5NIV, or Sophie Adenot, KJ5LTN.
The ARISS mentor is Dale Young, K4RGK and Brian Karley, KM4YHZ.
Contact is go for Wednesday, April 23, 2026 at 17:39:24 UTC.
Watch for Livestream at https://www.youtube.com/user/ASUPrepAcademy.

The crossband repeater continues to be active (145.990 MHz up {PL 67} & 437.800 MHz down). If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know.

As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol.

Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time.

The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html

The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html

[ANS thanks Charlie Sufana, AJ9N, one of the ARISS operation team mentors for the above information.]

AMSAT Ambassador Activities

AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events.

May 15-17, 2026
Dayton Hamvention
Greene County Fair and Expo Center
210 Fairground Road
Xenia 45385
https://hamvention.org/

October 8-11, 2026

44th AMSAT Space Symposium and Annual Membership Meeting
Crowne Plaza JAX Airport
14670 Duval Road
Jacksonville, FL 32218
Details to follow

[ANS thanks Bo Lowrey, W4FCL, Director â AMSAT Ambassador Program, for the above information.]

Satellite Shorts From All Over

FO-29's full-sunlight period ends on April 21, 2026. The next full-sunlight period begins on approximately May 20th. See ANS-102 for the scheduled activations during the upcoming eclipse period. [ANS thanks JARL for the above information.]
ITU Corporation has purchased the former Linton (Indiana) National Guard Armory to serve as the new manufacturing hub for Hy-gain and Cushcraft. Martin F. Jue, President and founder of MFJ Enterprises, Inc., was pleased to announce the sale of the Hy-gain and Cushcraft antenna, rotator, and communication product lines to ITU Corporation , a 25 year old Indiana engineering and manufacturing company. The designs, tooling, specialized equipment, manufacturing and marketing rights for Hy-gain and Cushcraft antennas and rotators are included in the sale. Read the complete story at https://tinyurl.com/ANS-109-Hy-gain-Cushcraft. [ANS thanks www.lintonnews.com for the above information.]

Join AMSAT today at https://launch.amsat.org/

In addition to regular membership, AMSAT offers membership to:

Societies (a recognized group, clubs or organization).
Students are eligible for FREE membership up to age 25.
Memberships are available for annual and lifetime terms.

Contact info [at] amsat.org for additional membership information.

73 and remember to help Keep Amateur Radio in Space!

This week's ANS Editor, Frank Karnauskas, N1UW.
f.karnauskas [at] amsat [dot] org

ANS is a service of AMSAT, the Radio Amateur Satellite Corporation, 712 H Street NE, Suite 1653, Washington, DC 20002.
AMSAT is a registered trademark of the Radio Amateur Satellite Corporation.

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

2026-04-17T00:37:59Z

Space Weather Message Code: ALTEF3

Serial Number: 3678

Issue Time: 2026 Apr 17 0731 UTC



CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu

Continuation of Serial Number: 3677

Begin Time: 2026 Apr 03 0920 UTC

Yesterday Maximum 2MeV Flux: 2407 pfu






Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact SWPC Help.

[Keps] orb26107.2l.amsat

2026-04-16T17:22:48Z

SB KEPS @ AMSAT $ORB26107.1 2Line Orbital Elements 26107.AMSAT

QST de W1STR

AMSAT Orbital Elements for Amateur Satellites in TLE Format

From Orbital Analysis Office New England Sci-Tech STEM Education Center Natick MA April 17, 2026 To all radio amateurs

These element sets describe the orbits of various satellites in use by the amateur radio community. For details see: www.amsat.org/keplerian-elements-formats/

A daily update of element sets is available at: www.amsat.org/tle/daily-bulletin.txt or without bulletin text: www.amsat.org/tle/dailytle.txt

AO-07 1 07530U 74089B 26106.80566242 -.00000040 00000-0 40452-4 0 9995 2 07530 101.9942 119.4056 0011891 247.5514 296.5364 12.53697138352827 UO-11 1 14781U 84021B 26106.46762199 .00000816 00000-0 88984-4 0 9991 2 14781 97.8007 72.7583 0008500 37.5864 322.5946 14.90633695247934 AO-27 1 22825U 93061C 26106.11685165 .00000043 00000-0 33459-4 0 9991 2 22825 98.6916 173.5417 0007243 284.1856 75.8522 14.30925227698128 FO-29 1 24278U 96046B 26106.87008483 -.00000020 00000-0 18688-4 0 9999 2 24278 98.5316 324.1138 0348834 255.5235 100.6968 13.53271232464874 GO-32 1 25397U 98043D 26106.74199182 .00000024 00000-0 30711-4 0 9998 2 25397 99.0059 97.9572 0002085 58.5198 301.6183 14.24416052442584 ISS 1 25544U 98067A 26106.84451399 .00004242 00000-0 85733-4 0 9990 2 25544 51.6329 243.6903 0006573 315.5681 44.4780 15.48789484562249 NO-44 1 26931U 01043C 26106.55514959 .00000058 00000-0 52474-4 0 9996 2 26931 67.0519 43.6767 0006654 264.3453 95.6890 14.31931581281624 SO-50 1 27607U 02058C 26106.85646821 .00000499 00000-0 77041-4 0 9997 2 27607 64.5523 318.7220 0075550 273.6270 85.6198 14.82910703255364 CO-55 1 27844U 03031E 26106.78011330 .00000189 00000-0 10099-3 0 9990 2 27844 98.6764 116.1074 0009706 11.4859 348.6539 14.24296809182933 RS-22 1 27939U 03042A 26106.83285541 .00000979 00000-0 15935-3 0 9991 2 27939 98.3460 289.4633 0012531 102.0145 21.2126 14.73356460206519 CO-65 1 32785U 08021C 26106.85123189 .00002677 00000-0 17417-3 0 9993 2 32785 97.8247 87.0364 0007452 230.0360 130.0214 15.08865657975940 CO-66 1 32791U 08021J 26106.72514752 .00011304 00000-0 38407-3 0 9995 2 32791 97.7525 101.7944 0004320 133.9152 226.2445 15.30647529977884 RS-30 1 32953U 08025A 26106.77414025 .00000008 00000-0 -14236-4 0 9991 2 32953 82.5070 33.6334 0020605 84.6292 275.7138 12.43177575812064 SRMSAT 1 37841U 11058D 26106.23675398 .00000363 00000-0 52901-4 0 9999 2 37841 19.9721 74.4374 0011613 241.6849 237.7724 14.11560608749058 ZACUBE-1 1 39417U 13066B 26106.47430911 .00002430 00000-0 19290-3 0 9997 2 39417 97.8130 68.4832 0044892 98.0747 262.5573 15.00673871671470 Delfi-N3xt 1 39428U 13066N 26106.52250248 .00005187 00000-0 46091-3 0 9999 2 39428 97.8353 26.9266 0077289 52.7935 308.0306 14.94271348665413 GOMX-1 1 39430U 13066Q 26106.82803810 .00000773 00000-0 12396-3 0 9991 2 39430 97.6536 311.1527 0127565 274.7470 83.9179 14.69235408660904 LO-74 1 39440U 13066AA 26106.42583080 .00001398 00000-0 13513-3 0 9998 2 39440 97.8866 55.1835 0056662 231.2901 128.3245 14.93340613667778 AO-73 1 39444U 13066AE 26106.65557581 .00005674 00000-0 36089-3 0 9998 2 39444 97.8238 76.8736 0038542 54.9890 305.4945 15.08603541670384 DTUSAT-2 1 40030U 14033W 26106.73106359 .00004897 00000-0 27209-3 0 9998 2 40030 98.0867 100.6007 0009835 86.6091 273.6264 15.14189966643380 LILACSAT-2 1 40908U 15049K 26106.82879477 .00011051 00000-0 20265-3 0 9993 2 40908 97.4739 141.4037 0008868 112.1942 248.0251 15.49427699586245 Horyu-4 1 41340U 16012D 26106.49478397 .00083079 00000-0 62803-3 0 9997 2 41340 30.9888 162.0229 0006053 151.3581 208.7407 15.71012090561040 Lapan A3 1 41603U 16040E 26106.89491094 .00002340 00000-0 76398-4 0 9990 2 41603 97.1494 105.0764 0008817 228.5154 131.5332 15.32702946545421 CAS-2T 1 41847U 16066G 26106.45665346 .00000348 00000-0 59010-4 0 9991 2 41847 98.3838 182.8873 0341367 317.0183 40.4792 14.44555786495888 TechnoSat 1 42829U 17042E 26106.80544372 .00001829 00000-0 13423-3 0 9993 2 42829 97.4205 266.8401 0016716 306.0715 53.8963 15.04575174477476 AO-91 1 43017U 17073E 26106.60085503 .00004798 00000-0 21557-3 0 9996 2 43017 97.4792 335.1035 0153559 180.5300 179.5793 15.11608323456084 S-Net D 1 43186U 18014G 26106.69640459 .00003027 00000-0 16064-3 0 9996 2 43186 97.5410 11.8852 0006941 222.7652 137.3041 15.16093490449443 S-Net B 1 43187U 18014H 26106.64065882 .00002811 00000-0 14957-3 0 9992 2 43187 97.5415 11.8145 0007702 218.2823 141.7863 15.16064171449434 S-Net A 1 43188U 18014J 26106.69557470 .00003042 00000-0 16137-3 0 9996 2 43188 97.5425 12.0663 0007554 218.9359 141.1331 15.16100279449445 S-Net C 1 43189U 18014K 26106.64419247 .00002754 00000-0 14660-3 0 9999 2 43189 97.5442 12.0806 0009132 212.2158 147.8517 15.16055972447987 Ten-Koh 1 43677U 18084G 26106.46723905 .00001860 00000-0 14432-3 0 9991 2 43677 98.0792 296.2351 0008916 329.2109 30.8591 15.02676412406899 PO-101 1 43678U 18084H 26106.81084220 .00001198 00000-0 10102-3 0 9995 2 43678 98.1048 300.4178 0013788 15.9131 344.2521 15.00151340407013 QO-100 1 43700U 18090A 26106.65948295 .00000151 00000-0 00000+0 0 9991 2 43700 0.0154 245.5706 0001136 161.3276 61.1070 1.00272614 27065 MinXSS-2 1 43758U 18099A 26106.62159983 .00019172 00000-0 43644-3 0 9996 2 43758 97.4571 181.2880 0009310 128.6955 231.5127 15.42960978404627 AO-95 1 43770U 18099N 26106.43991084 .00006404 00000-0 25638-3 0 9992 2 43770 97.4438 166.9622 0008748 194.9739 165.1241 15.25376721403803 SNUSat 2 1 43782U 18099AA 26106.11170095 .00004585 00000-0 21030-3 0 9991 2 43782 97.4121 160.4755 0011586 147.1252 213.0707 15.20875776403590 SnugLite 1 43784U 18099AC 26106.39332667 .00006287 00000-0 24855-3 0 9997 2 43784 97.3932 161.3267 0004290 132.1628 227.9975 15.25827595403899 ITASat 1 1 43786U 18099AE 26106.41418573 .00003901 00000-0 19339-3 0 9994 2 43786 97.4092 159.1767 0012352 200.8082 159.2651 15.18260159403532 EAGLET 1 1 43790U 18099AJ 26106.86481713 .00002332 00000-0 13759-3 0 9991 2 43790 97.4295 158.1602 0011024 189.3822 170.7205 15.12467826403062 ESEO 1 43792U 18099AL 26106.84452250 .00001127 00000-0 85527-4 0 9999 2 43792 97.4045 146.8476 0012309 174.8526 185.2830 15.04062345402586 JO-97 1 43803U 18099AX 26106.13633634 .00009640 00000-0 31721-3 0 9995 2 43803 97.4187 168.8347 0007364 127.2922 232.8992 15.31697363404128 Suomi 100 1 43804U 18099AY 26106.43932022 .00006556 00000-0 24955-3 0 9996 2 43804 97.4246 167.1128 0011646 134.4423 225.7771 15.27023675403992 ISAT 1 43879U 18111D 26106.59469111 .00041089 00000-0 58697-3 0 9994 2 43879 97.5910 37.5607 0007784 135.3048 224.8835 15.56116208401565 UWE-4 1 43880U 18111E 26106.71974515 .00017922 00000-0 41496-3 0 9997 2 43880 97.5863 32.4646 0008586 167.3462 192.8002 15.42477857401292 Sparrow 1 43881U 18111F 26106.76215787 .00052764 00000-0 62260-3 0 9997 2 43881 97.6131 42.5005 0005357 143.0101 217.1526 15.61174849401756 Prox-1 1 44339U 19036A 26106.84131889 .00007706 00000-0 76741-3 0 9997 2 44339 23.9945 163.5574 0006708 49.6523 310.4561 14.89143258364310 Taurus 1 1 44530U 19059C 26106.85084199 .00002843 00000-0 46775-3 0 9998 2 44530 98.6354 267.9241 0009762 142.0032 218.1863 14.71403364349626 TO-108 1 44881U 19093C 26106.85537198 -.00000180 00000-0 -14336-4 0 9990 2 44881 97.7562 180.5793 0012171 291.9880 68.0043 14.86418057342302 RS-44 1 44909U 19096E 26106.47666898 .00000002 00000-0 -29956-4 0 9998 2 44909 82.5263 20.7099 0216439 288.8111 68.9625 12.79747884294452 SALSAT 1 46495U 20068K 26106.57607044 .00004776 00000-0 17294-3 0 9992 2 46495 97.8862 105.9354 0010820 149.7925 210.3939 15.28882964305946 CSS (TIANHE-1) 1 48274U 21035A 26106.76755394 .00015996 00000-0 17822-3 0 9990 2 48274 41.4683 336.1456 0005888 221.8433 138.1956 15.62454512283565 CUTE 1 49263U 21088D 26106.22698882 .00057607 00000-0 42207-3 0 9996 2 49263 97.4202 200.6909 0003101 192.8273 167.2912 15.73006353252766 TeikyoSat 4 1 49396U 21102B 26106.60008373 .00000879 00000-0 58912-4 0 9992 2 49396 97.3734 138.4692 0013165 139.4931 220.7281 15.09286974243434 Z-Sat 1 49399U 21102E 26106.82905010 .00001958 00000-0 99780-4 0 9990 2 49399 97.3395 144.0158 0018530 100.7570 259.5751 15.17788024244133 KOSEN 1 1 49402U 21102H 26106.84683837 .00004735 00000-0 18646-3 0 9994 2 49402 97.3255 150.2142 0015441 68.5190 291.7693 15.25981743244665 HO-113 1 50466U 21131B 26106.82556955 .00000324 00000-0 11388-3 0 9992 2 50466 98.4950 199.5592 0002863 287.4349 72.6526 14.41297095226273 SNUGLITE 2 1 52899U 22065F 26106.66770595 .00000617 00000-0 12628-3 0 9994 2 52899 98.2109 251.6415 0006911 207.9485 152.1347 14.64228263201992 UmKA 1 (RS40S) 1 57172U 23091G 26106.82317694 .00003580 00000-0 16855-3 0 9996 2 57172 97.5106 165.7720 0012079 340.5018 19.5753 15.20129990154682 CubeBel-2 (EU11S) 1 57175U 23091K 26106.83899708 .00007779 00000-0 28958-3 0 9992 2 57175 97.5103 169.5619 0009066 339.6427 20.4449 15.27729674154939 RS-38S 1 57189U 23091Z 26106.80605972 .00009267 00000-0 28299-3 0 9994 2 57189 97.5135 175.1432 0005891 289.5310 70.5296 15.34113657155271 SONATE-2 1 59112U 24043Q 26106.35524219 .00022415 00000-0 34275-3 0 9995 2 59112 97.5459 253.2023 0007256 74.0118 286.1934 15.54378993118273 GRBBeta 1 60237U 24128C 26106.61983524 .00002321 00000-0 16871-3 0 9992 2 60237 61.9893 72.1901 0047928 121.6814 238.8966 15.06143194 96998 Curium One 1 60242U 24128H 26106.60074895 .00004549 00000-0 27322-3 0 9996 2 60242 61.9787 63.7340 0047549 118.0234 242.5683 15.11525906 97141 ROBUSTA-3A 1 60243U 24128J 26106.59809221 .00004326 00000-0 26609-3 0 9994 2 60243 61.9862 65.8806 0048657 115.4480 245.1661 15.10709317 97112 CatSat 1 60246U 24125J 26106.56863223 .00030621 00000-0 49418-3 0 9993 2 60246 97.2159 318.5515 0025351 53.9105 306.4490 15.52471372 97818 HYPERVIEW-1G (RS66S) 1 61772U 24199AP 26106.83768131 .00049604 00000-0 53007-3 0 9991 2 61772 97.3005 344.0487 0009312 132.3480 227.8570 15.63712431125052 AO-123 1 61781U 24199AY 26106.89586420 .00005056 00000-0 15191-3 0 9991 2 61781 97.3090 336.1309 0014618 162.1116 198.0645 15.34768629124524 JINJUSat 1B 1 63210U 25052A 26106.44275253 .00008916 00000-0 29468-3 0 9999 2 63210 97.4079 3.1856 0001959 343.0200 17.0975 15.31600050 60645 NUSHSAT 1 1 63211U 25052B 26106.83701068 .00011637 00000-0 36034-3 0 9992 2 63211 97.4055 3.9562 0001901 353.4804 6.6414 15.33617047 60732 TEVEL2-4 1 63213U 25052D 26106.25755743 .00009979 00000-0 32065-3 0 9995 2 63213 97.3977 2.6278 0002313 22.9060 337.2284 15.32472769 60621 TEVEL2-5 1 63214U 25052E 26106.46764367 .00009348 00000-0 30188-3 0 9995 2 63214 97.3978 2.8025 0002286 23.2440 336.8905 15.32333286 60658 TEVEL2-6 1 63215U 25052F 26106.21724646 .00009630 00000-0 31130-3 0 9997 2 63215 97.3983 2.5374 0002430 21.7315 338.4030 15.32290903 60615 TEVEL2-1 1 63217U 25052H 26106.61824262 .00009080 00000-0 29786-3 0 9991 2 63217 97.3940 2.6308 0003044 31.1809 328.9613 15.31834512 60668 TEVEL2-3 1 63218U 25052J 26106.22291477 .00009318 00000-0 30522-3 0 9999 2 63218 97.3956 2.2517 0003027 30.4351 329.7066 15.31871706 60600 TEVEL2-2 1 63219U 25052K 26106.22687459 .00009172 00000-0 30087-3 0 9993 2 63219 97.3954 2.2420 0003013 30.4172 329.7244 15.31832627 60605 TEVEL2-9 1 63237U 25052AD 26106.45478581 .00009288 00000-0 32197-3 0 9994 2 63237 97.4013 1.9696 0006659 20.4572 339.6934 15.30021521 60580 TEVEL2-7 1 63238U 25052AE 26106.41941547 .00008829 00000-0 30855-3 0 9997 2 63238 97.4017 1.8743 0006781 20.3975 339.7535 15.29773475 60576 TEVEL2-8 1 63239U 25052AF 26106.62319097 .00008697 00000-0 30415-3 0 9995 2 63239 97.4010 2.0558 0006813 21.2019 338.9503 15.29756621 60606 HYDRA-W 1 63490U 25052BL 26106.25716157 .00665003 18264-3 19217-2 0 9991 2 63490 97.3781 9.7942 0006189 148.3815 211.7833 15.92995451 61107 HADES-ICM (SO-125) 1 63492U 25052BN 26105.68886659 .00169609 00000-0 13067-2 0 9998 2 63492 97.3880 7.8439 0003839 83.5498 276.6202 15.71459742 60929 SPIRONE 1 66657U 25274H 26106.54597272 .00001570 00000-0 15523-3 0 9998 2 66657 97.7464 36.7384 0011140 213.3927 146.6591 14.93291933 21025 K-HERO 1 66660U 25274L 26106.50112964 .00001217 00000-0 12019-3 0 9994 2 66660 97.7471 36.8091 0012874 219.3358 140.6928 14.93729259 21027 SNUGLITE-III DURI 1 66661U 25274M 26106.55808286 .00001355 00000-0 13294-3 0 9998 2 66661 97.7468 36.8830 0013498 220.3385 139.6835 14.93795673 21039 SilverSat 1 66909U 98067XV 26106.56755711 .00764812 28915-3 12799-2 0 9998 2 66909 51.6139 227.4457 0014275 326.0751 33.9346 16.02081806 21194 SAKHACUBE-CHOLBON 1 67290U 25313AU 26106.19031683 .00004974 00000-0 20968-3 0 9996 2 67290 97.3960 182.0483 0009077 205.2553 154.8241 15.23740710 16531 RS95S (QMR-KWT-2) 1 67291U 25313AV 26106.15968439 .00008587 00000-0 35005-3 0 9993 2 67291 97.3961 182.0878 0008984 204.1049 155.9769 15.24660337 16539 Ten-Koh2 1 68261U 25241B 26105.83021768 .00004974 00000-0 22194-3 0 9991 2 68261 51.6431 256.2725 0005041 297.6495 62.3970 15.23083660 5406 JACK-002 1 68417U 26067B 26106.83177058 .00004588 00000-0 22497-3 0 9993 2 68417 97.4522 66.2377 0003848 111.5846 248.5798 15.18610110 2635 DISCO 2 1 68431U 26067R 26106.83709926 .00005636 00000-0 27914-3 0 9998 2 68431 97.4559 66.2394 0002261 153.8356 206.2993 15.18165231 2630 HADES-SA (SpinnyONE) 1 68446U 26067AG 26104.14754476 .00010917 00000-0 55598-3 0 9993 2 68446 97.4363 63.5285 0005085 311.4083 48.6713 15.16956596 2216 PARUS-6U1 1 68456U 26067AS 26106.85153524 .00003592 00000-0 18587-3 0 9999 2 68456 97.4508 66.2095 0003761 281.9417 78.1395 15.16863578 2635 SAL-E 1 68458U 26067AU 26106.85184626 .00004912 00000-0 25286-3 0 9999 2 68458 97.4435 66.1942 0004022 296.3068 63.7752 15.16867909 2638 IO-86 1 40931U 25360.30710720 .00000000 00000-0 12800-3 0 00 2 40931 6.0006 332.5373 0012733 338.8432 8.1437 14.79075515 01 LILIUM-4
1 71922C 26067AC 26089.50133053 -.00014632 00000+0 -74472-3 0 04 2 71922 97.4497 49.1617 0004341 5.9603 355.7042 15.16896692 16 /EX

Keps mailing list -- keps@amsat.org View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/keps@amsat.org To unsubscribe send an email to keps-leave@amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

[Keps] Changes to AMSAT TLE Distribution for 17 April 2026

2026-04-16T17:22:05Z

The following satellites have permanent object numbers assigned:

SAL-E NORAD Cat ID 68458 DISCO 2 NORAD Cat ID 68431 HADES-SA (SpinnyONE) NORAD Cat ID 68446 JACK-002 NORAD Cat ID 68417 PARUS-6U1 NORAD Cat ID 68456

Joe Fitzgerald KM1P AMSAT Orbital Elements Manager

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

2026-04-16T06:25:48Z

Space Weather Message Code: ALTEF3

Serial Number: 3677

Issue Time: 2026 Apr 16 1323 UTC



CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu

Continuation of Serial Number: 3676

Begin Time: 2026 Apr 03 0920 UTC

Yesterday Maximum 2MeV Flux: 3248 pfu






Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

2026-04-15T01:07:06Z

Space Weather Message Code: ALTEF3

Serial Number: 3676

Issue Time: 2026 Apr 15 0756 UTC



CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu

Continuation of Serial Number: 3675

Begin Time: 2026 Apr 03 0920 UTC

Yesterday Maximum 2MeV Flux: 1705 pfu






Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

2026-04-14T04:39:15Z

Space Weather Message Code: ALTEF3

Serial Number: 3675

Issue Time: 2026 Apr 14 1137 UTC



CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu

Continuation of Serial Number: 3674

Begin Time: 2026 Apr 03 0920 UTC

Yesterday Maximum 2MeV Flux: 1650 pfu






Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

2026-04-13T04:07:34Z

Space Weather Message Code: ALTEF3

Serial Number: 3674

Issue Time: 2026 Apr 13 1101 UTC



CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu

Continuation of Serial Number: 3673

Begin Time: 2026 Apr 03 0920 UTC

Yesterday Maximum 2MeV Flux: 1610 pfu






Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

2026-04-12T06:24:14Z

Space Weather Message Code: ALTEF3

Serial Number: 3673

Issue Time: 2026 Apr 12 1317 UTC



CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu

Continuation of Serial Number: 3672

Begin Time: 2026 Apr 03 0920 UTC

Yesterday Maximum 2MeV Flux: 1082 pfu






Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

[ANS] ANS-102 AMSAT News Service Weekly Bulletins

2026-04-11T17:22:35Z

AMSAT News Service

ANS-102
April 12, 2026

In this edition:

Reminder: AMSAT at Hamvention
AMSAT to Attend CubeSat Developers Workshop 2026
AMSAT Satellite Status Page: The Story Behind the New Colors and Satellite Naming Convention
IARU Coordination Requested for VemanaReddySat
FO-29 Update
Changes to AMSAT TLE Distribution for April 10, 2026
ARISS News
AMSAT Ambassador Activities
Satellite Shorts From All Over

The AMSATÂ® News Service bulletins are a free, weekly news and information service of AMSAT, The Radio Amateur Satellite Corporation.

ANS publishes news related to Amateur Radio in Space including reports on the activities of a worldwide group of Amateur Radio operators who share an active interest in designing, building, launching and communicating through analog and digital Amateur Radio satellites.

The news feed on https://www.amsat.org publishes news of Amateur Radio in Space as soon as our volunteers can post it.

Please send any amateur satellite news or reports to: ans-editor [at] amsat.org

You can sign up for free e-mail delivery of the AMSAT News Service Bulletins via the ANS List; to join this list see: https://mailman.amsat.org/postorius/lists/ans.amsat.org/

Reminder: AMSAT at Hamvention

The 2026 Dayton Hamvention will be held Friday through Sunday, May 15â17, 2026, at the Greene County Fairgrounds in Xenia, Ohio. AMSAT will once again have a strong presence throughout the event, including booth activities, social gatherings, and the annual AMSAT Forum.

The 17th annual TAPR/AMSAT Banquet will be held Friday, May 15 at 6:30 PM EDT (18:30 EDT) at the Kohler Presidential Banquet Center, 4548 Presidential Way, Kettering, Ohio 45429, located approximately 20 minutes from the Greene County Fairgrounds. This dinner is a highlight of the TAPR (Tucson Amateur Packet Radio) and AMSAT (Radio Amateur Satellite Corporation) activities during Hamvention. The banquet speaker will be announced at a later date.

Tickets are $75 each and may be purchased through theÂ AMSAT store. The deadline to purchase banquet tickets is Monday, May 11 at 17:00 EDT (21:00 UTC). Tickets must be purchased in advance and will not be sold at the AMSAT booth or at the door. There will be no tickets available for pickup at the AMSAT booth. Tickets purchased online will be maintained on a list, with check-in at the door at the banquet center. Seating is limited to the number of meals reserved with the Kohler caterers based on ticket sales by the deadline.

The annual AMSAT âDinner at Ticketsâ gathering will take place Thursday, May 14 from 6:00 PM to 8:00 PM EDT at Tickets Pub & Eatery, 7 W. Main Street, Fairborn, Ohio 45324. Telephone (937) 878-9022. This informal event features no program or speaker, offering an opportunity for conversation and camaraderie. All are welcome, regardless of participation in booth setup or operations. Food may be ordered from the menu, and drinks, including beer, wine, sodas, and iced tea, are available at the bar. No reservations are required.

AMSAT is seeking volunteers to assist at the AMSAT booth, located in Building 1, booths 1007â1010 and 1107â1110. Volunteers are encouraged to contribute as much time as they are able, whether for a few hours or the entire weekend. In 2025, approximately 20 volunteers supported AMSATâs activities and engagement with attendees.

Those interested in volunteering or requesting additional information may contact Phil Smith, W1EME, AMSAT Hamvention Team Leader, via email at w1eme [at] astrocom.net. Volunteer participation plays an important role in supporting AMSATâs presence and outreach within the amateur radio community.

The AMSAT Forum will be held Saturday, May 16 from 1:50 PM to 3:10 PM EDT in Forum Room 2.

Additional details, including the banquet speaker announcement, will be provided as they become available.

[ANS thanks the AMSAT Hamvention teamÂ for the above information]

AMSAT Remove Before Flight Key Tags Now Available Yes, These are the Real Thing!

Your $20 Donation Goes to Help Fly a FoxPlus Satellite Includes First Class Postage (Sorry â U.S. Addresses Only) Order Today atÂ https://www.amsat.org/product/amsat-remove-before-flight-keychain

AMSAT to Attend CubeSat Developers Workshop 2026

AMSAT will participate in the CubeSat Developers Workshop 2026 (CDW26), scheduled for April 14â16, 2026, at the Performing Arts Center on the campus of California Polytechnic State University (Cal Poly) in San Luis Obispo, California.

The CubeSat Developers Workshop is the premier annual gathering for the small satellite community. Hosted by the Cal Poly CubeSat Laboratory, the event typically draws more than 500 industry professionals, researchers, educators, and students. Attendees engage in three days of technical presentations, Q&A panels, exhibit booths, and extensive networking opportunities focused on CubeSat and small satellite design, development, testing, launch, and operations. The workshop is especially valuable for newcomers, offering direct access to experienced developers and lessons learned from real missions.

AMSATâs presence at CDW26 underscores its long-standing commitment to advancing amateur radio in space through CubeSat platforms. AMSAT members and representatives plan to engage with the broader CubeSat community, share expertise on amateur satellite communications (including transponders, telemetry, and ground station operations), and explore collaboration opportunities with universities, educational groups, and commercial developers. This participation helps strengthen ties between the amateur radio satellite service and the wider smallsat ecosystem, where many university and student projects seek reliable, low-cost communication solutions that align with IARU-coordinated amateur frequencies.

[ANS thanks AMSAT for the above information]

AMSAT Satellite Status Page: The Story Behind the New Colors and Satellite Naming Convention

If you've visited the AMSAT Satellite Status page recently, you may have noticed the color scheme and satellite naming convention look a bit different. These changes have prompted some questions from the community, and we wanted to take a moment to explain the reasoning behind the updates.

Accessibility First

We received a request to change "Transponder/Repeater Operational" from blue to green, since green often means "good." That made sense, so we made the change along with a few other minor color adjustments. When we rolled it out, however, we quickly heard from users who couldn't distinguish "Transponder/Repeater Operational" from "No Signal Heard." After some research, we learned that red-green color blindness affects roughly 10% of the population, and that's just one of three prominent types of color vision deficiency, each affecting a different part of the spectrum.

After further research, we adopted the IBM Colorblind Palette, which allows 99.998% of people to reliably distinguish between five colors. While some users have suggested alternative color schemes, many of those proposals would reintroduce the same accessibility conflicts we set out to solve.

Handling Multiple Modes

As satellites grow more capable, many now carry multiple operating modes. Rather than assigning a separate color to each mode, which quickly becomes impractical when a single satellite may support five or six, we've given each mode its own line on the Status page. To accommodate this, we updated the naming convention from just the satellite name to the satellite name plus mode. For example, SSTV operations on the International Space Station now appear as ISS_[SSTV]. This approach scales cleanly as new multi-mode satellites come online.

We also renamed "Transponder/Repeater Operational" to "Satellite Active," which simply means the mode you selected to report on is active. We made this change because "Transponder" and "Repeater" are two-way modes, and an increasing number of satellites are now being launched with interesting one-way modes other than just telemetry and beacons.

We're always open to suggestions, but please remember, we are all volunteers at AMSAT!

[ANS thanks David Spoelstra, N9KT, AMSAT Web Manager, for the above information]

The 2026 President's Club Coin is Now Here! Help Support GOLF and FoxPlus.

Annual memberships start at only $120

Join the AMSAT Presidentâs Club today and help Keep Amateur Radio in Space!

https://www.amsat.org/join-the-amsat-presidents-club/

IARU Coordination Requested for VemanaReddySat

A new 1U CubeSat project from Vemana Institute of Technology in Bengaluru, India, has submitted a frequency coordination request to the IARU.

VemanaReddySatÂ represents a student-led effort focused on educational and technology demonstration objectives. The project involves collaboration with the instituteâs engineering departments, building on Vemana Institute of Technologyâs growing interest in satellite image processing, CubeSat development, and space-data analytics.

According to the coordination application dated April 9, 2026, the satellite is planned as a 1U CubeSat carrying:

A UHF downlink for telemetry and occasional Robot 36 SSTV image transmissions.
LoRa capability intended for inter-satellite or experimental links.

The primary downlink will use 9k6 GFSK modulation. The mission aims to provide hands-on experience for students in spacecraft systems, communications, and payload operations while demonstrating low-cost amateur radio techniques in space.

Launch and Orbit Plans

The team targets a mid-2026 rideshare launch opportunity aboard an ISRO PSLV or SSLV vehicle. The planned orbit is approximately 450â500 km altitude with an inclination in the range of 35â60 degrees.

[ANS thanks the IARU for the above information]

Need new satellite antennas? Purchase M2 LEO-Packs from the AMSAT Store.

When you purchase through AMSAT, a portion of the proceeds goes towards Keeping Amateur Radio in Space. https://amsat.org/product-category/hardware/

FO-29 Update

Fuji-OSCAR 29 (FO-29 / JAS-2), the long-lived Japanese amateur radio satellite launched in 1996, continues to operate its V/U inverting analog linear transponder under the control of the Japan Amateur Radio League (JARL). Because the onboard batteries have failed years ago, the satellite depends entirely on solar power and can only function when its solar panels are illuminated.

Current Status (April 2026)

FO-29 entered a full-sunlight orbit around March 9, 2026. During full-sunlight periods, the satellite experiences no or negligible eclipses, allowing the analog transponder to operate continuously on illuminated passes without scheduled command activations.
The first full-sunlight window began in early March 2026 and lasted approximately 40 days.
According to the JARL schedule, this continuous operation ends around April 21, 2026, after which the satellite will enter an eclipse period for about one month.
A second, longer full-sunlight period is expected from approximately May 20 to mid-November 2026, during which continuous operation should resume.

Transponder Details

Mode: V/U inverting linear transponder (SSB and CW only)
- Uplink: 145.900 â 146.000 MHz (LSB)
- Downlink: 435.800 â 435.900 MHz (USB)
CW Beacon: 435.795 MHz (typically 100 mW)
Digitalker: 435.910 MHz FM (rarely activated)
The digital BBS (1k2/9k6) remains non-operational.
Important Restriction: Digital modes are generally not permitted on the linear transponder due to licensing and operational constraints.

Operating Procedure

During eclipse periods (or the transition out of full sunlight), the JARL control team sends specific commands to activate the transponder at designated UTC times. If the transponder does not turn on within about 2 minutes of the command start, the team terminates the attempt.
During confirmed full-sunlight periods, no regular command schedule is needed â the transponder stays active whenever the satellite is in sunlight.
Operators should always check real-time status via AMSAT Live Satellite Status, OSCAR Status pages, or recent community reports, as voltage instability in the aging satellite can occasionally cause unexpected behavior.

April 2026 Specifics

In early-to-mid April 2026 (while still in the March full-sunlight window), expect the transponder to be available on most or all illuminated passes with no fixed on/off times. After approximately April 21, operation will shift back to scheduled command activations until the next full-sunlight season begins in late May.

The scheduled activations for the eclipse period are:

April
24th 22:22~
25th 21:27~
28th 22:11~

MayÂ
1st 22:56~
2nd 22:00~
3rd 22:51~
4th 21:55~
5th 22:45~
6th 21:50~
7th 22:40~
8th 21:44~
9th 22:35~
15th 22:19~
16th 23:10~

Amateurs are reminded to:

Use proper Doppler correction.
Follow linear transponder etiquette (listen before transmitting, keep signals clean).
Limit uplink power to avoid overloading the transponder (typically no more than a few watts with a modest antenna).

The JARL page provides the detailed historical and upcoming command schedules for eclipse periods across 2025â2026. For the absolute latest status and any updates from the Japanese control team, monitor the official JARL FO-29 page, AMSAT.org, and AMSAT bulletins.

FO-29âs continued operation nearly 30 years after launch remains a testament to robust engineering and the dedication of the JARL team.

[ANS thanks JARL for the above information]

Changes to AMSAT TLE Distribution for April 10, 2026

Two Line Elements or TLEs, often referred to as Keplerian elements or keps in the amateur community, are the inputs to the SGP4 standard mathematical model of spacecraft orbits used by most amateur tracking programs. Weekly updates are completely adequate for most amateur satellites. TLE bulletin files are updated daily in the first hour of the UTC day. New bulletin files will be posted immediately after reliable elements become available for new amateur satellites. More information may be found atÂ https://www.amsat.org/keplerian-elements-resources/.

There are no changes to this week's TLE distribution.

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information]

Join AMSAT or Renew Now. . .
Download a Free 'Getting Started with Amateur Satellites' Book!

Get the latest edition just for doing the right thing! Visit https://www.amsat.org/membership-specials/ for more details.

ARISS News

Scheduled Contacts

Elementary School âSlava Raskajâ, Ozalj, Croatia, direct via 9A1CUA

The ISS callsign is presently scheduled to be OR4ISS
The scheduled crewmember isÂ Chris Williams KJ5GEW
TheÂ ARISSÂ mentor is IZ2GOJÂ Â

Contact is go for: Mon 2026-04-13 08:55:30 UTC 28 deg

Watch for Livestream atÂ https://youtube.com/@radioclubozalj?si=KO2QyAdcsaCTieJa

Scouts Australia Western Australia Branch, Mount Hawthorn, Western Australia, Australia, telebridgeÂ via AB1OC

The ISS callsign is presently scheduled to be NA1SSÂ
The scheduled crewmember is Jack Hathaway KJ5NIVÂ Â
TheÂ ARISSÂ mentor is VK4KHZ

Contact is go for: Fri 2026-04-17 10:20:48 UTC 71 deg

Many times a school may make a last minute decision to do a Livestream or run into a last minute glitch requiring a change of the URL but we at ARISS may not get the URL in time for publication.Â Â You can always check https://live.ariss.org/Â to see if a school is Livestreaming.

As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol.

The crossband repeater continues to be active (145.990 MHz up {PL 67} & 437.800 MHz down), If any crew member is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Service Module radio: Not in APRS configuration; only being used for voice contacts at this time. Default mode is for packet operations (145.825 MHz up & down) but occasionally used for SSTV (145.800 MHz down).

Ham TV â Configured. Default mode is for scheduled digital amateur television operations (2395.00 MHz). Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. The latest information on the operation mode can be found atÂ https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found atÂ https://www.ariss.org/contact-the-iss.html

[ANS thanks Charlie Sufana, AJ9N, one of the ARISS operation team mentors for the above information]

Want to fly the colors on your own grid expedition? Get an AMSAT car flag and other neat stuff from our Zazzle store!

25% of the purchase price of each product goes towards Keeping Amateur Radio in Space

AMSAT Ambassador Activities

AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events.

May 15-17, 2026
Dayton Hamvention
Greene County Fair and Expo Center
210 Fairground Road
Xenia 45385
https://hamvention.org/

October 8-11, 2026
44th AMSAT Space Symposium and Annual Membership Meeting
Crowne Plaza JAX Airport
14670 Duval Road
Jacksonville, FL 32218
Details to follow

Interested in becoming an AMSAT Ambassador? AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events. For more information go to:Â https://www.amsat.org/ambassador/

[ANS thanks Bo Lowrey, W4FCL, Director â AMSAT Ambassador Program, for the above information]

Satellite Shorts from All Over

+ ARISS SSTV Series 31 âWorld Space Commemorationâ kicked offÂ on April 10, 2026, on 437.550 MHz FM using Robot 36 mode. Transmissions run through April 14 and feature images honoring Cosmonautics Day, the 100th anniversary of liquid-fueled rockets, the first Space Shuttle launch, and SuitSat. Operators worldwide are actively tracking passes and sharing receptions.

+ Amateur radio operators continued supporting NASAâs Artemis II lunar flyby mission. A network of 34 ARISS- and AMSAT-affiliated stations is providing supplementary tracking of the Orion spacecraftâs S-band signals, with notable contributions from experienced satellite tracker Scott Tilley, VE7TIL. The mission splashed down on April 10th in the Pacific Ocean.

+ A new version of the UZ7HO SoundModem software for HADES-SA/SpinnyONE is now available, with bug fixes and supporting tools for SSDV image decoding and CODEC2. Downloads are posted on the AMSAT-EA website.

Join AMSAT today at https://launch.amsat.org/

In addition to regular membership, AMSAT offers membership to:

Societies (a recognized group, clubs or organization).
Students are eligible for FREE membership up to age 25.
Memberships are available for annual and lifetime terms.

Contact info [at] amsat.org for additional membership information.

73 and remember to help Keep Amateur Radio in Space!

This week's ANS Editor,

Paul Stoetzer, N8HM
n8hm [at] amsat.org

ANS is a service of AMSAT, the Radio Amateur Satellite Corporation, 712 H Street NE, Suite 1653, Washington, DC 20002. AMSAT is a registered trademark of the Radio Amateur Satellite Corporation.Â

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

2026-04-11T06:09:14Z

Space Weather Message Code: ALTEF3

Serial Number: 3672

Issue Time: 2026 Apr 11 1306 UTC



CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu

Continuation of Serial Number: 3671

Begin Time: 2026 Apr 03 0920 UTC

Yesterday Maximum 2MeV Flux: 1714 pfu






Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

[RADIOCOMM LIST]

[ANS] ANS-109 AMSAT New Service Weekly Bulletins

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

[Keps] orb26107.2l.amsat

[Keps] Changes to AMSAT TLE Distribution for 17 April 2026

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

[ANS] ANS-102 AMSAT News Service Weekly Bulletins

AMSAT News Service

ANS-102 April 12, 2026

Reminder: AMSAT at Hamvention

AMSAT Remove Before Flight Key Tags Now Available Yes, These are the Real Thing!

Your $20 Donation Goes to Help Fly a FoxPlus Satellite Includes First Class Postage (Sorry â U.S. Addresses Only) Order Today atÂ https://www.amsat.org/product/amsat-remove-before-flight-keychain

AMSAT to Attend CubeSat Developers Workshop 2026

AMSAT Satellite Status Page: The Story Behind the New Colors and Satellite Naming Convention

Accessibility First

Handling Multiple Modes

IARU Coordination Requested for VemanaReddySat

FO-29 Update

Current Status (April 2026)

Transponder Details

Operating Procedure

April 2026 Specifics

Changes to AMSAT TLE Distribution for April 10, 2026

ARISS News

Scheduled Contacts

Want to fly the colors on your own grid expedition? Get an AMSAT car flag and other neat stuff from our Zazzle store!

25% of the purchase price of each product goes towards Keeping Amateur Radio in Space

AMSAT Ambassador Activities

Satellite Shorts from All Over

Join AMSAT today at https://launch.amsat.org/

ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

ANS-102
April 12, 2026

Your $20 Donation Goes to Help Fly a FoxPlus Satellite Includes First Class Postage (Sorry â U.S. Addresses Only) Order Today atÂ https://www.amsat.org/product/amsat-remove-before-flight-keychain