:Product: Solar Region Summary

:Issued: 2025 Mar 13 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 72 Issued at 0030Z on 13 Mar 2025
Report compiled from data received at SWO on 12 Mar

I.  Regions with Sunspots.  Locations Valid at 12/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4012 S14W84   306  0080 Cai  04   08 Beta

4018 S21W09   231  0110 Cso  09   09 Beta

4019 N06E04   218  0210 Dac  08   15 Beta-Delta

4020 N19E23   199  0050 Hsx  02   01 Alpha

4021 S06E42   180  0100 Cai  05   07 Beta-Delta

4022 N08E33   189  0030 Dro  06   06 Beta

4023 N25E45   177  0030 Hsx  02   01 Alpha

4025 N10E44   178  0010 Bxi  05   07 Beta

4026 S20E50   172  0010 Bxo  03   03 Beta

4027 N11W21   243  0010 Bxo  04   03 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 12/2400Z Mar

Nmbr  Location  Lo

4013  S04W89   311

4016  S25W60   282

4017  S05W43   265

4024  N05W69   291

II. Regions Due to Return 13 Mar to 15 Mar

Nmbr Lat    Lo

4000 N17    125

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