:Product: Solar Region Summary

:Issued: 2025 Mar 17 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 76 Issued at 0030Z on 17 Mar 2025
Report compiled from data received at SWO on 16 Mar

I.  Regions with Sunspots.  Locations Valid at 16/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4018 S20W66   235  0070 Hsx  02   01 Alpha

4019 N05W51   220  0120 Dai  03   06 Beta

4020 N19W28   197  0030 Hax  02   01 Alpha

4021 S05W11   180  0110 Dso  04   07 Beta

4022 N05W23   192  0070 Dao  06   09 Beta

4023 N25W07   176  0020 Hrx  01   01 Alpha

4025 N11W12   181  0050 Dso  06   10 Beta-Gamma

4028 S18E27   142  0110 Dsi  07   12 Beta-Gamma

4030 S17E38   131  0080 Hsx  02   01 Alpha

4031 N17E04   165  0060 Dai  05   06 Beta

4032 N28E22   147  0010 Axx  01   01 Alpha

4033 N25E47   122  0010 Axx  01   02 Alpha

4034 S16E51   118  0010 Bxo  05   03 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 16/2400Z Mar

Nmbr  Location  Lo

4026  S19W05   174

4027  N11W78   247

4029  S15E20   149

II. Regions Due to Return 17 Mar to 19 Mar

Nmbr Lat    Lo

4006 N18    047

4007 S11    042

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