Space Weather Events
Coronal mass ejection — 2026-11-01 19:48 UTC
Slow developing CME first seen to the NE by SOHO LASCO C2, also observed in SOHO LASCO C3 and GOES CCOR-1, not observed in STEREO A COR due to a data gap in real-time starting at 2026-11-01T19:38Z. The source of this event is an eruption from beyond the NE limb seen in GOES SUVI 284/304 beginning at approx. 2026-11-01T18:14Z as filament ejecta and very wide, slow field line movement. An initial faint CME at 2026-11-01T18:36Z (LASCO C2) measuring plane-of-sky ~164 km/s is observed prior to this brighter emerging front.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 309 km/s |
| CME analyses | 2 |
| Linked events | — |
| Instruments | SOHO: LASCO/C2, SOHO: LASCO/C3, 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) | 2026-11-02T07:41Z | 435 | 27 | 41 / — | S | Plane-of-sky | — |
| #2 (opens in a new tab) Most accurate (DONKI) | 2026-11-02T10:39Z | 309 | 30 | 39 / -104 | S | SWPC_CAT | Shock arrival not predicted; Earth glancing blow: no 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 | 2 Nov 2026, 19:00 EST |
| Last observed here | 12 Nov 2026, 19:01 EST |
| In latest snapshot | Yes |
| Record identifier | b7577b6c-be16-5052-a4bc-b8cfe87ea16d |
Local observation history
What this site observed; not complete provider history.
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