☀ Helios Solar Watch · 2026-08-23 04:00 UTC
QUIET
Geomagnetic activity remains at background levels with a Kp-index of 0.7. The solar environment is currently stable, with no immediate threats to Earth’s magnetosphere or power infrastructure.
Visible light · 6 active regions
Extreme UV · 304 Å
Kp Index
0.7
5 or above = storm
Geomagnetic
G0
24 h max: G0
X-Ray
A/B
quiet
⚠ Electron flux F3 reached · 4 more below
Next 24 h
Expect stable, quiet conditions to continue throughout the next 24 hours. The Kp-index is forecast to remain near 1.3, indicating negligible geomagnetic disturbance.
🌌 Aurora
Aurora activity will be limited to high-latitude polar regions.
more
There is no expected visibility for observers at mid-latitudes (40-60°N) during this period.
👁 Watch for
Monitor AR4513 for any sudden magnetic flux emergence, as it remains the most complex active region currently on the visible disk.
▸ Detailed readings
Radio blackout
R0
(24 h max R0)
R0
(24 h max R0)
Radiation
S0
(24 h max S0)
S0
(24 h max S0)
F10.7
102.0
sfu
102.0
sfu
| Region | Location | Class | Flares C/M/X |
|---|---|---|---|
| AR4515 | S08E49 | Hsx/A | 0/0/0 |
| AR4514 | S10W85 | Axx/A | 0/0/0 |
| AR4508 | N09W77 | Hsx/A | 0/0/0 |
| AR4516 | N16W30 | Bxo/B | 0/0/0 |
| AR4513 | N04E39 | Ekc/BG | 1/0/0 |
| AR4517 | N10E25 | Bxo/B | 0/0/0 |
NOAA messages
2026-08-22 05:00 Electron flux F3 reached (ALTEF3)
2026-08-21 09:45 SUM10R (SUM10R)
2026-08-20 20:49 ALTTP2 (ALTTP2)
2026-08-20 12:12 X-ray flare M5 summary (SUMXM5)
2026-08-20 11:39 X-ray flare MF reached (ALTXMF)
Helios Observer · Data: NOAA SWPC · updated every 12 h