:Product: Solar Region Summary

:Issued: 2025 Sep 18 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 261 Issued at 0030Z on 18 Sep 2025
Report compiled from data received at SWO on 17 Sep

I.  Regions with Sunspots.  Locations Valid at 17/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4216 N10W04   247  0200 Cai  07   17 Beta-Gamma

4217 S17E36   208  0200 Eao  12   12 Beta

4220 S18W01   245  0080 Dai  05   18 Beta

4221 N04E29   215  0110 Dso  07   06 Beta

4223 S16E50   194  0040 Cao  03   05 Beta

4225 N10E68   176  0120 Hsx  03   01 Alpha

IA. H-alpha Plages without Spots.  Locations Valid at 17/2400Z Sep

Nmbr  Location  Lo

4219  N26W42   286

4222  N13E08   236

4224  S09E30   214

II. Regions Due to Return 18 Sep to 20 Sep

Nmbr Lat    Lo

4197 S18    149

4199 N04    137

4201 S21    133

4202 S15    131

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