Space Weather Events
Coronal mass ejection — 2026-10-02 00:53 UTC
CME faintly visible to the NE in STEREO A COR2 and the NW in SOHO LASCO C2/C3 and GOES CCOR-1. The source is likely a gradual eruption with moving field lines best seen in SDO AIA 193 starting around 2026-10-01T17:43Z. Post-eruption arcades are also visible, and best seen after a data gap in STEREO A EUV 195 imagery. The data gap is from 2026-10-01T14:35Z to 2026-10-02T00:55Z.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 255 km/s |
| CME analyses | 1 |
| Linked events | — |
| Instruments | STEREO A: SECCHI/COR2, 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) Most accurate (DONKI) | 2026-10-02T12:52Z | 255 | 28 | 33 / 53 | S | SWPC_CAT | Shock arrival not predicted; Earth glancing blow: no run (opens in a new tab) 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 | 12 Oct 2026, 20:02 EDT |
| Last observed here | 14 Oct 2026, 16:02 EDT |
| In latest snapshot | Yes |
| Record identifier | a6de4617-0d86-5c31-8003-af3e12a9fb3a |
Local observation history
What this site observed; not complete provider history.
- — Added