Space Weather Events
Coronal mass ejection — 2026-11-01 19:00 UTC
CME first seen to the West in SOHO LASCO C2 beginning at 2026-11-01T19:00Z. The CME is also visible to the west in SOHO LASCO C3 and GOES CCOR-1. The CME may be faintly visible to the east in STEREO A COR2 imagery. The source of this event is a filament eruption seen centered at approx. N15W15. Filament destabilization began at approx. 2026-11-01T16:43Z, with liftoff beginning at approx. 2026-11-01T17:54Z as seen in SDO AIA, STEREO A EUVI and GOES SUVI 304. Post eruptive arcades and field line movement are also visible in SDO AIA 193, GOES SUVI 284 and STEREO A EUVI 195.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 357 km/s |
| CME analyses | 1 |
| Linked events | — |
| Instruments | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 |
Research information from NASA DONKI, not an operational warning. NOAA SWPC is the official US source of space weather forecasts.
CME analyses
| Analysis | Time at 21.5 R☉ (UTC) | Speed (km/s) | Half angle (°) | Lat / lon (°) | Type | Technique | Model runs (WSA-ENLIL) |
|---|---|---|---|---|---|---|---|
| #1 (opens in a new tab) Most accurate (DONKI) | 2026-11-02T03:59Z | 357 | 27 | 7 / 31 | S | SWPC_CAT | Shock arrival 2026-11-05T05:00Z; Earth glancing blow: yes run (opens in a new tab) |
Analyses are measurements and modelled predictions submitted to DONKI; the "most accurate" mark is DONKI's own.
Provenance
| Source | NASA DONKI — Space Weather Events |
|---|---|
| Feed | DONKI CME |
| Provider data as of | not stated |
| First observed here | 1 Nov 2026, 19:00 EST |
| Last observed here | 13 Nov 2026, 19:00 EST |
| In latest snapshot | Yes |
| Record identifier | a4aeeaf2-245a-5c10-94fa-71d4e3857d6c |
Local observation history
What this site observed; not complete provider history.
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