Space Weather Events
Coronal mass ejection — 2026-09-19 18:48 UTC
Faint, minor CME with an unclear front seen to the E-NE in SOHO LASCO C2. Not seen in other coronagraphs. Its source is the long duration C3.3 class flare from unnumbered AR rotating onto disk (N14E90) peaking at 2026-09-19T18:17Z. There is also an associated opening of field lines on/behind the E limb seen in SDO AIA 193 and a minor prominence/ejecta seen in SDO AIA 304/171 starting after 2026-09-19T18:10Z. The initial front is followed by a series of outflows.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Peak (UTC) | — |
| End (UTC) | — |
| Flare class | — |
| Source location / observed at | N14E90 |
| CME speed (most accurate analysis) | 321 km/s |
| Kp index values (as observed) | — |
| CME analyses | 1 |
| Linked events | 2026-09-19T17:57:00-FLR-001 |
| Instruments | SOHO: LASCO/C2 |
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) | 2026-09-20T06:14Z | 321 | 45 | 16 / -90 | 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, 20:02 EDT |
| In latest snapshot | Yes |
| Record identifier | 505b44ca-c8e8-5556-841e-cf582c59a724 |
Local observation history
What this site observed; not complete provider history.
- — Added