☀ Helios Solar Watch · 2026-09-23 04:00 UTC
QUIET
Geomagnetic conditions are currently quiet with a planetary K-index of 0.3. Solar activity is characterized by a stable but active disk, with low-level flare production.
Visible light · 8 active regions
Extreme UV · 304 Å
Kp Index
0.3
5 or above = storm
Geomagnetic
G0
24 h max: G0
X-Ray
A/B
quiet
⚠ Kp 20 possible · 4 more below
Next 24 h
Expect calm space weather for the next 24 hours as solar activity remains subdued. The planetary K-index is forecast to remain at or below 2.33, ensuring minimal disruption to ionospheric conditions.
🌌 Aurora
Aurora visibility is not expected at mid-latitudes.
more
The current solar environment is insufficient to drive significant auroral displays, limiting potential sightings to high-latitude regions near the poles.
👁 Watch for
Monitor the development of active regions AR4536 and AR4534, as their magnetic complexity could evolve and influence flare probability in the coming 24 hours.
▸ 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
106.0
sfu
106.0
sfu
| Region | Location | Class | Flares C/M/X |
|---|---|---|---|
| AR4538 | N11W23 | Cri/B | 0/0/0 |
| AR4536 | N03W13 | Dsi/B | 2/0/0 |
| AR4534 | N11W35 | Dai/B | 1/0/0 |
| AR4540 | S12W52 | Bxo/B | 0/0/0 |
| AR4533 | S13E36 | Hsx/A | 0/0/0 |
| AR4535 | N12E44 | Hsx/A | 0/0/0 |
| AR4539 | S09E26 | Cro/B | 0/0/0 |
| AR4537 | N08W26 | Dri/BD | 0/0/0 |
NOAA messages
2026-09-21 18:32 Kp 20 possible (WATA20)
2026-09-16 05:38 Kp 4 expected (WARK04)
2026-09-16 00:34 Kp 4 reached (ALTK04)
2026-09-15 18:56 Kp 5 (G1) expected (WARK05)
2026-09-14 11:03 Electron flux F3 reached (ALTEF3)
Helios Observer · Data: NOAA SWPC · updated every 12 h