☀ Helios Solar Watch · 2026-09-01 16:00 UTC
QUIET
Geomagnetic activity remains at quiet levels with a Kp-index of 2.0. Solar activity is characterized by steady, moderate radio flux despite a lack of impulsive flare events.
Visible light · 5 active regions
Extreme UV · 304 Å
Kp Index
2.0
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
Geomagnetic conditions are expected to remain quiet for the next 24 hours, with the Kp-index projected to stay at 2.0.
more
While there is a high 95% probability of C-class flares, no significant disruptions to satellite or radio operations are anticipated.
🌌 Aurora
Aurora activity is expected to be confined to high polar latitudes.
more
Mid-latitude observers should not expect visible displays under current conditions.
👁 Watch for
Monitor AR4521 and AR4523 as they rotate further onto the disk, as their development will determine the likelihood of future M-class flare production.
▸ 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
150.0
sfu
150.0
sfu
| Region | Location | Class | Flares C/M/X |
|---|---|---|---|
| AR4521 | N98E53 | Hsx/A | 0/0/0 |
| AR4520 | S12W20 | Dao/B | 0/0/0 |
| AR4523 | N10E63 | Hax/A | 0/0/0 |
| AR4518 | N08W36 | Axx/A | 0/0/0 |
| AR4522 | N13W28 | Bxo/B | 0/0/0 |
NOAA messages
2026-09-01 07:37 Electron flux F3 reached (ALTEF3)
2026-08-31 08:58 Kp 4 expected (WARK04)
2026-08-28 20:40 Kp 5 (G1) expected (WARK05)
2026-08-28 15:02 Kp 4 reached (ALTK04)
2026-08-26 16:36 Kp 30 possible (WATA30)
Helios Observer · Data: NOAA SWPC · updated every 12 h