:Product: Solar Region Summary

:Issued: 2025 Mar 21 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 80 Issued at 0030Z on 21 Mar 2025
Report compiled from data received at SWO on 20 Mar

I.  Regions with Sunspots.  Locations Valid at 20/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4021 S04W62   178  0090 Hsx  01   03 Alpha

4022 N05W78   194  0010 Axx  02   02 Alpha

4025 N10W64   180  0090 Cso  08   04 Beta

4026 S20W55   171  0020 Cro  04   05 Beta

4028 S17W24   140  0060 Cai  06   10 Beta

4030 S17W13   129  0060 Hsx  02   01 Alpha

4031 N17W48   164  0100 Cai  10   12 Beta

4034 S12E04   112  0020 Cso  05   08 Beta

4035 N15E32   084  0080 Dso  08   04 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 20/2400Z Mar

Nmbr  Location  Lo

4020  N19W80   196

4023  N25W59   175

4029  S15W36   152

4032  N28W34   150

4033  N29W04   120

II. Regions Due to Return 21 Mar to 23 Mar

Nmbr Lat    Lo

4009 N12    022

4014 N17    017

4015 N27    011

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