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M9.9 solar flare on 2001-11-22
ClassM9.9NOAA report
Peak23:302001-11-22 UTC
Duration94 min
Peak flux9.9e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 22 / 2429 |
| Other M/X flares that day | 2 |
| M/X flares that month | 48 |
| Solar cycle | Cycle 23 |
| Active region | AR 9704 (46 flares) |
Compared with the strongest flares of 2001
X20.0
X14.4
X6.2
X5.6
X5.3
X3.4
X2.8
X2.6
X2.3
X2.0
X1.7
X1.6
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 17:00 | 17:08 | 25 | M1.2 | S18W33 | 9704 | |
| 20:18 | 20:36 | 34 | M3.8 | S25W67 | 9698 |
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.
← M9.1 2001-11-08X1.1 2001-11-25 →
About this page
A M9.9 flare that began 2001-11-22 22:32 UTC; No. 22 of 2,429 C-class-or-larger flares in 2001.