Space Weather Events
Coronal mass ejection — 2026-09-27 07:00 UTC
CME first seen to the SW by SOHO LASCO C2 beginning at 2026-09-27T07:00Z as well as by SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1 in later frames. The source of this event is minor field line movement and brightening seen located at approx. S30W100-120 beginning at 2026-09-27T06:00Z as seen in STEREO A EUVI 195.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 606 km/s |
| CME analyses | 1 |
| Linked events | — |
| Instruments | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, 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) | 2026-09-27T12:14Z | 606 | 28 | -30 / 118 | C | 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 | 12 Oct 2026, 20:02 EDT |
| Last observed here | 14 Oct 2026, 16:02 EDT |
| In latest snapshot | Yes |
| Record identifier | cfbf6ef8-cf3c-5f1a-89ba-6fe430c2c892 |
Local observation history
What this site observed; not complete provider history.
- — Added