AMSAT NEWS SERVICE ANS-351 In this edition: * ARISS Marks 40th Anniversary of STS-9 with Special Slow Scan Television Event * HADES-D Satellite: Successful Telecommand Response and FM Repeater Tests Ongoing * WRC-23 Reaches Acceptable Conclusion on 23-Centimeter Issue * How the 18th Space Defense Squadron Averts Catastrophe at 17,000 Miles Per Hour * CubeSat Technology and 3D Printing Combine for Emergency Broadband in Disaster Zones * Satellite Top 100 Rovers December 2023 Rankings * Changes to AMSAT-NA TLE Distributi ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 334 Issue Time: 2023 Dec 15 0734 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2023 Dec 15 0723 UTC NOAA Scale: R2 - Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time in ...Continue Reading

This week there are no additions or deletions to the AMSAT TLE distribution. 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 ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 333 Issue Time: 2023 Dec 15 0714 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2023 Dec 15 0712 UTC NOAA Scale: R2 - Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time in ...Continue Reading

SB KEPS @ AMSAT $ORB23349.1 2Line Orbital Elements 23349.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 December 15, 2023 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 wi ...Continue Reading

Space Weather Message Code: SUMX01 Serial Number: 133 Issue Time: 2023 Dec 14 1821 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2023 Dec 14 1647 UTC Maximum Time: 2023 Dec 14 1702 UTC End Time: 2023 Dec 14 1712 UTC X-ray Class: X2.8 Location: N05W55 NOAA Scale: R3 - Strong NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-sola ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 332 Issue Time: 2023 Dec 14 1704 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2023 Dec 14 1658 UTC NOAA Scale: R2 - Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time in ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 331 Issue Time: 2023 Dec 14 0743 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2023 Dec 14 0741 UTC NOAA Scale: R2 - Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time in ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3390 Issue Time: 2023 Dec 12 1538 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3389 Begin Time: 2023 Dec 11 1410 UTC Yesterday Maximum 2MeV Flux: 1339 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 updat ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3389 Issue Time: 2023 Dec 11 1420 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2023 Dec 11 1410 UTC Station: GOES16 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 ...Continue Reading