:Product: Solar Region Summary

:Issued: 2025 Mar 16 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 75 Issued at 0030Z on 16 Mar 2025
Report compiled from data received at SWO on 15 Mar

I.  Regions with Sunspots.  Locations Valid at 15/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4018 S19W52   234  0090 Hsx  02   01 Alpha

4019 N06W37   219  0100 Dai  05   19 Beta-Gamma-Delta

4020 N20W15   197  0070 Hsx  01   01 Alpha

4021 S05E03   179  0090 Cso  03   03 Beta

4022 N06W09   191  0070 Dai  07   09 Beta

4023 N21E04   178  0030 Hrx  02   01 Alpha

4025 N12E02   180  0050 Cao  07   06 Beta

4028 S17E41   141  0240 Dai  06   03 Beta-Gamma

4029 S14E34   148  0010 Axx  01   01 Alpha

4030 S16E59   123  0090 Eso  12   05 Beta-Gamma

4031 N17E18   164  0010 Bxo  03   02 Beta

4032 N27E36   146  0010 Axx  01   01 Alpha

4033 N24E60   122  0010 Bxo  03   03 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 15/2400Z Mar

Nmbr  Location  Lo

4017  S05W87   269

4026  S19E09   173

4027  N11W64   246

II. Regions Due to Return 16 Mar to 18 Mar

Nmbr Lat    Lo

4002 N16    091

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