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X1.7 solar flare on 2001-03-29
ClassX1.7NOAA report
Peak10:152001-03-29 UTC
Duration35 min
Peak flux1.7e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 240 / 491 |
| Rank in year | 11 / 2429 |
| Other M/X flares that day | 7 |
| M/X flares that month | 38 |
| Solar cycle | Cycle 23 |
| Position on disk | N20W19 |
| Active region | AR 9393 (55 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 |
|---|---|---|---|---|---|---|
| 02:44 | 02:56 | 16 | M2.1 | N17W04 | 9393 | |
| 11:29 | 11:35 | 10 | M2.1 | N15W12 | 9393 | |
| 14:09 | 14:18 | 13 | M1.6 | – | 9393 | |
| 14:28 | 14:34 | 13 | M1.3 | – | – | |
| 14:52 | 14:58 | 13 | M1.5 | – | 9393 | |
| 15:20 | 15:25 | 13 | M1.2 | N14W15 | 9393 | |
| 20:43 | 21:01 | 26 | M1.2 | – | – |
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.
← M6.7 2001-03-10M5.5 2001-04-01 →
About this page
A X1.7 flare that began 2001-03-29 09:57 UTC; No. 11 of 2,429 C-class-or-larger flares in 2001.