Space Weather Events
Coronal mass ejection — 2026-10-08 18:38 UTC
Faint CME observed to the E only in STEREO A COR2 Science Data, as a real-time gap in STEREO A COR2 beacon data spanning 2026-10-08T18:53Z to 2026-10-09T17:53Z obscured real-time observations of this CME. CME leading edge not observed in SOHO LASCO C2/C3 or GOES CCOR-1. Partial overlap with CMEs 2026-10-08T16:24Z and CME 2026-10-08T16:53Z. The source is an on-disk filament eruption in the vicinity of AR 14548, starting around 2026-10-08T17:13Z, with the filament spanning a curved arc from S08E15 to S21E24 to S15E05 before liftoff in SDO AIA 304. Eruption observed as filament ejecta, brightening, and double-ribbon flare in SDO AIA 304, and as field line movement, dimming, and brightening/post-eruptive arcades in SDO AIA 171/193/211.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 868 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) | 2026-10-08T22:34Z | 868 | 18 | 3 / -13 | C | StereoCAT | — |
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 | 13 Oct 2026, 14:25 EDT |
| Last observed here | 13 Oct 2026, 20:56 EDT |
| In latest snapshot | Yes |
| Record identifier | 725a0092-3cbb-5072-aaaa-c8e58fe84b24 |
Local observation history
What this site observed; not complete provider history.
- — Added