:Product: Solar Region Summary

:Issued: 2025 Mar 18 0030 UTC

# Prepared jointly by the U.S. Dept. of Commerce, NOAA,

# Space Weather Prediction Center and the U.S. Air Force.

#

Joint USAF/NOAA Solar Region Summary

SRS Number 77 Issued at 0030Z on 18 Mar 2025
Report compiled from data received at SWO on 17 Mar

I.  Regions with Sunspots.  Locations Valid at 17/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4018 S19W78   235  0050 Hsx  02   01 Alpha

4019 N06W65   221  0040 Cao  03   06 Beta

4020 N19W42   198  0020 Hax  02   01 Alpha

4021 S06W24   180  0120 Cso  05   07 Beta

4022 N06W38   194  0030 Dao  05   06 Beta

4023 N25W19   175  0010 Axx  01   01 Alpha

4025 N11W26   182  0090 Dsi  07   12 Beta-Gamma

4028 S18E16   140  0100 Dai  07   17 Beta-Gamma

4030 S17E26   130  0070 Hsx  02   01 Alpha

4031 N15W10   166  0060 Dai  09   12 Beta-Gamma

4033 N24E37   119  0010 Axx  02   02 Alpha

4034 S14E46   110  0020 Cro  04   03 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 17/2400Z Mar

Nmbr  Location  Lo

4026  S19W19   175

4029  S15E06   150

4032  N28E08   148

II. Regions Due to Return 18 Mar to 20 Mar

Nmbr Lat    Lo

4006 N18    047

4007 S11    042

---

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.