:Product: Solar Region Summary

:Issued: 2025 Aug 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 229 Issued at 0030Z on 17 Aug 2025
Report compiled from data received at SWO on 16 Aug

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

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4169 N22W84   030  0030 Hsx  01   01 Alpha

4171 N19W66   012  0030 Hsx  01   01 Alpha

4172 N08W86   032  0180 Dai  03   03 Beta

4175 N12W48   354  0010 Axx  01   01 Alpha

4177 N05W46   352  0010 Axx  01   01 Alpha

4179 S10W13   319  0020 Cro  06   08 Beta

4180 S03E02   304  0020 Cro  09   07 Beta

4182 N08E30   276  0030 Dao  03   05 Beta

4186 N08W62   008  0060 Dso  04   06 Beta

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

Nmbr  Location  Lo

4176  N25W67   013

4181  S11W68   014

4183  S02W89   035

4184  S19W64   010

4185  N17W63   009

II. Regions Due to Return 17 Aug to 19 Aug

Nmbr Lat    Lo

4155 S08    215

4157 S21    213

4166 N25    209

4167 N11    185

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