:Product: Solar Region Summary

:Issued: 2026 Apr 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 107 Issued at 0030Z on 17 Apr 2026
Report compiled from data received at SWO on 16 Apr

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

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4415 S18W33   015  0060 Hsx  02   01 Alpha

4416 N20W64   046  0100 Dso  07   11 Beta

4419 N13E29   313  0280 Eki  12   23 Beta-Gamma

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

Nmbr  Location  Lo

4414  N15W45   027

4418  S11W35   017

II. Regions Due to Return 17 Apr to 19 Apr

Nmbr Lat    Lo

4403 N15    223

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