:Product: Solar Region Summary

:Issued: 2025 Oct 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 290 Issued at 0030Z on 17 Oct 2025
Report compiled from data received at SWO on 16 Oct

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

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4246 N24W69   290  0840 Ekc  14   30 Beta-Gamma-Delta

4248 N07W41   262  0360 Eki  12   18 Beta-Gamma

4250 N05W34   255  0010 Axx  01   01 Alpha

4252 S13E14   207  0150 Cso  04   05 Beta

4254 N10E46   175  0060 Hsx  02   01 Alpha

4255 S08E38   183  0010 Bxo  05   02 Beta

4256 S16E66   155  0040 Dao  07   05 Beta

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

Nmbr  Location  Lo

4249  S20W36   257

4251  N19W15   236

4253  S17W66   287

II. Regions Due to Return 17 Oct to 19 Oct

Nmbr Lat    Lo

4230 S10    129

---

Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact SWPC Help.