:Product: Solar Region Summary

:Issued: 2025 Dec 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 351 Issued at 0030Z on 17 Dec 2025
Report compiled from data received at SWO on 16 Dec

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

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4305 S25W62   199  0050 Hax  02   01 Alpha

4307 S15W60   197  0110 Dao  09   06 Beta

4308 N07E04   134  0020 Cro  06   04 Beta

4309 S09W62   199  0010 Axx  01   01 Alpha

4310 N01W38   175  0010 Bxi  04   06 Beta

4311 N03E16   121  0020 Cro  02   03 Beta

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

Nmbr  Location  Lo

4303  S25W74   211

II. Regions Due to Return 17 Dec to 19 Dec

Nmbr Lat    Lo

4302 S04    024

4301 S09    012

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