Space Weather Events
Coronal mass ejection — 2026-10-27 12:53 UTC
Faint CME visible to the NE in STEREO A COR2. The CME is not clearly visible in SOHO LASCO C2/C3 or GOES CCOR-1 imagery. The potential source location is not found in available EUV imagery.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 302 km/s |
| CME analyses | 1 |
| Linked events | — |
| Instruments | STEREO A: SECCHI/COR2 |
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) | 2026-10-27T23:56Z | 302 | 17 | 29 / — | 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 | 27 Oct 2026, 20:00 EDT |
| Last observed here | 14 Nov 2026, 19:03 EST |
| In latest snapshot | Yes |
| Record identifier | 345c2a5a-c8e3-5603-9aad-8a126512a21f |
Local observation history
What this site observed; not complete provider history.
- — Added