:Product: Solar Region Summary

:Issued: 2025 Mar 12 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 71 Issued at 0030Z on 12 Mar 2025
Report compiled from data received at SWO on 11 Mar

I.  Regions with Sunspots.  Locations Valid at 11/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4012 S14W70   305  0130 Cai  08   16 Beta

4018 S20E01   234  0100 Cso  04   06 Beta

4019 N07E18   217  0180 Dac  09   09 Beta-Delta

4020 N19E36   199  0050 Hsx  03   01 Alpha

4021 S06E57   178  0080 Cao  05   06 Beta

4022 N08E47   188  0020 Cro  03   04 Beta

4023 N25E58   177  0030 Hsx  02   01 Alpha

4024 N05W54   289  0020 Cro  04   05 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 11/2400Z Mar

Nmbr  Location  Lo

4011  S14W77   312

4013  S04W74   309

4016  S25W46   281

4017  S05W28   263

II. Regions Due to Return 12 Mar to 14 Mar

Nmbr Lat    Lo

3998 S14    133

4000 N17    125

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