Space Weather Events
Coronal mass ejection — 2026-10-01 03:12 UTC
Faint CME observed to the NW in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source is far-sided, approximately ~N12W120, as observed in STEREO A EUVI 195/304 as brightening starting around 2026-10-01T02:35Z. Also observed in SDO AIA 171/193/304 as filament ejecta and field line movement beyond the NW limb starting around 2026-10-01T02:36Z.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Peak (UTC) | — |
| End (UTC) | — |
| Flare class | — |
| Source location / observed at | N12W120 |
| CME speed (most accurate analysis) | 432 km/s |
| Kp index values (as observed) | — |
| CME analyses | 2 |
| 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) | 2026-10-01T09:32Z | 511 | 10 | 35 / 136 | C | StereoCAT | 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) |
| #2 (opens in a new tab) Most accurate (DONKI) | 2026-10-01T11:06Z | 432 | 13 | 37 / 112 | 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 | 12 Oct 2026, 22:18 EDT |
| In latest snapshot | Yes |
| Record identifier | a9402c35-c8b5-5117-b1ec-f1d6fb1b2c89 |
Local observation history
What this site observed; not complete provider history.
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