Solar Flare WatchHome › Flare history › 2000
X1.2 solar flare on 2000-09-30
ClassX1.2NOAA report
Peak23:212000-09-30 UTC
Duration15 min
Peak flux1.2e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 337 / 491 |
| Rank in year | 12 / 2492 |
| Other M/X flares that day | 2 |
| M/X flares that month | 15 |
| Solar cycle | Cycle 23 |
| Position on disk | N07W91 |
| Active region | AR 9169 (26 flares) |
Compared with the strongest flares of 2000
X5.7
X4.0
X2.3
X2.3
X2.0
X1.9
X1.9
X1.8
X1.8
X1.2
X1.2
X1.2
Other M/X flares that day
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
← M5.1 2000-09-19M5.0 2000-10-01 →
About this page
A X1.2 flare that began 2000-09-30 23:13 UTC; No. 12 of 2,492 C-class-or-larger flares in 2000.