Space Weather Events
Coronal mass ejection — 2026-11-04 02:48 UTC
Faint CME first seen to the NW by SOHO LASCO C2 beginning at 2026-11-04T02:48Z. This CME fades before exiting the field-of-view in SOHO LASCO C2, and is therefore not visible in GOES CCOR-1 or SOHO LASCO C3. This CME and source are also obscured by a data gap in STEREO A COR2 from 2026-11-03T18:23Z to 2026-11-04T04:23Z. The source of this event is field line movement seen beyond the NW limb beginning at approx. 2026-11-04T02:00Z as seen in SOD AIA 171.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 497 km/s |
| CME analyses | 1 |
| Linked events | — |
| Instruments | SOHO: LASCO/C2 |
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) | 2026-11-04T10:02Z | 497 | 14 | 46 / — | S | Plane-of-sky | — |
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 | 4 Nov 2026, 19:00 EST |
| Last observed here | 13 Nov 2026, 19:00 EST |
| In latest snapshot | Yes |
| Record identifier | d7f7e4d0-3e6d-5b36-8d31-0ffaa1d94c5e |
Local observation history
What this site observed; not complete provider history.
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