Space Weather Events
Coronal mass ejection — 2026-09-30 11:36 UTC
Faint CME first seen to the West by SOHO LASCO C2 beginning at 2026-09-30T11:36Z, as well as by SOHO LASCO C3 and GOES CCOR-1 in later frames. This event is not clearly seen in STEREO A COR2 as it is likely obscured by the occulting disk. The source of this CME is a small eruption from the vicinity of former AR 14543 (S08W112) seen beginning at approx. 2026-09-30T10:55Z in STEREO A EUVI 195.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Peak (UTC) | — |
| End (UTC) | — |
| Flare class | — |
| Source location / observed at | S08W112 |
| CME speed (most accurate analysis) | 365 km/s |
| Kp index values (as observed) | — |
| 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) | 2026-09-30T20:47Z | 365 | 20 | 8 / 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 | 9a5030f7-c6ac-5a4c-ba5d-df8abc1fe1ca |
Local observation history
What this site observed; not complete provider history.
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