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Prediction for CME (2024-02-01T08:00:00-CME-001)CME Observed Time: 2024-02-01T08:00ZiSWAS Layout URL: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/28924/-1 CME Note: [PRELIMINARY] Partial halo CME to the NE in SOHO LASCO C2/C3 and STEREO A COR2. The source centered around N20E05. A C3.0 flare peaked at 2024-02-01T07:43Z, accompanied by dimming and post-eruptive arcades in STEREO A EUV 195 and SDO AIA 193, but eruption is partially obscured by an eclipse in SDO From 2024-02-01T06:42Z to 2024-02-01T07:51Z. Filamentary material seen lifting off in GOES SUVI 304, opening field lines are seen in SDO AIA 171, and post-eruptive arcades are best visible in SDO AIA 94. Possible arrival signature is unclear. The complex signature is characterized by gradual increases in Btotal (to 11nT) and solar wind speed (to 500 km/s), as well as rapid fluctuations of magnetic field components indicative of a high speed stream. It is possible that this signature includes a CME arrival, as it also encompasses a drop in temperature and density over 2024-02-05. The signature will be revisited once Level 1 solar wind data is available. CME Shock Arrival Time: 2024-02-04T02:35Z Observed Geomagnetic Storm Parameters due to CME: ---- Predicted Arrival Time: 2024-02-03T14:53Z (-13.3h, +13.3h) Prediction Method: ELEvo Prediction Method Note: CME input parameters: Apex direction (deg): -8.5 Inverse ellipse aspect ratio_ 0.7 Angular half width (in ecliptic, deg): 35 initial CME speed: 850.0 initial height: 21.5 R_Sun initial time: 2024-02-01T12:03Z drag parameter: 0.1e-7 (+/- 0.025e-7) /km ambient solar wind speed: 400 (+/- 50) km/s time step: 10 min ensemble members: 100kLead Time: 41.35 hour(s) Difference: 11.70 hour(s) Prediction submitted by Eva Weiler (ASWO) on 2024-02-02T09:14Z |
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