:Product: Solar Region Summary

:Issued: 2025 Dec 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 352 Issued at 0030Z on 18 Dec 2025
Report compiled from data received at SWO on 17 Dec

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

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4305 S25W75   199  0060 Hsx  01   01 Alpha

4307 S15W74   198  0130 Dao  09   05 Beta

4308 N08W13   137  0010 Axx  03   02 Alpha

4310 N02W52   176  0020 Cro  05   04 Beta

4311 N03E02   122  0050 Cso  04   06 Beta

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

Nmbr  Location  Lo

4303  S25W88   212

4309  S09W76   200

II. Regions Due to Return 18 Dec to 20 Dec

Nmbr Lat    Lo

4302 S04    024

4301 S09    012

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