☀ Helios Solar Watch · 2026-10-03 04:00 UTC
QUIET
The sun remains in a quiet state, with geomagnetic activity consistently at low levels. Current metrics indicate no immediate space weather threats to Earth’s infrastructure.
Visible light · 3 active regions
Extreme UV · 304 Å
Kp Index
2.3
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
Conditions are expected to remain stable and quiet over the next 24 hours. The K-index will likely fluctuate between 1 and 2, keeping the geomagnetic environment well below storm thresholds.
🌌 Aurora
Aurora visibility is restricted to high-latitude polar regions.
more
Mid-latitude observers should not expect any auroral activity during this period.
👁 Watch for
Monitor the development of Active Region AR4545 as it rotates into a more geoeffective position, given the 60% probability for C-class flare activity.
▸ 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
127.0
sfu
127.0
sfu
| Region | Location | Class | Flares C/M/X |
|---|---|---|---|
| AR4545 | N20E46 | Cro/B | 0/0/0 |
| AR4535 | N12W83 | Hsx/A | 0/0/0 |
| AR4546 | S19W45 | Cso/B | 0/0/0 |
NOAA messages
2026-10-01 14:30 Electron flux F3 reached (ALTEF3)
2026-10-01 14:28 Kp 20 possible (WATA20)
2026-09-30 03:39 ALTTP4 (ALTTP4)
2026-09-30 03:38 ALTTP2 (ALTTP2)
2026-09-27 00:40 Kp 4 reached (ALTK04)
Helios Observer · Data: NOAA SWPC · updated every 12 h