Space Weather Events
Coronal mass ejection — 2026-10-05 01:26 UTC
Faint CME observed to the W in SOHO LASCO C2/C3 and GOES CCOR-1, not observed in STEREO A COR2. The source is AR 14546 starting around 2026-10-05T00:33Z, with brightening and field line movement in SDO AIA 171/193, and some dimming in SDO AIA 193, centered around S21W71.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 340 km/s |
| CME analyses | 1 |
| Linked events | — |
| Instruments | 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) | 2026-10-05T11:55Z | 340 | 18 | -8 / 71 | S | 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 | 13 Oct 2026, 20:56 EDT |
| In latest snapshot | Yes |
| Record identifier | 70b7bc40-775e-5e99-bfdb-3e6e1871e0a4 |
Local observation history
What this site observed; not complete provider history.
- — Added