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Prediction Detail

Prediction for CME (2019-03-20T08:24:00-CME-001)

CME Observed Time: 2019-03-20T08:24Z
CME Shock Arrival Time: 2019-03-24T20:43Z
Observed Geomagnetic Storm Parameters due to CME:

Predicted Arrival Time: 2019-03-24T03:50Z
Prediction Method: CAT-PUMA
Prediction Method Note:
This is a prediction for the CME at 2019-03-20T11:24:00
The angular width for the CME at 2019-03-20T08:24:00 is too small for CAT-PUMA to make a prediction.

CME Parameters from SOHO LASCO C2 & C3:
Onset time: 2019-03-20T11:24:00
Angular width: 104.2
Average speed: 341.1 km/s
Final speed: 317.5 km/s
Mass: 9.22e14 g
MPA: 305.0

Solar Wind Parameters from DSCOVR Spacecraft:
Bz: -0.690 nT
Alpha-Proton Ratio: 0.041  # No observation, use average value in the model
Flow Speed: 400.539 km/s
Flow Latitude: -0.730
Pressure: 0.666 nPa
Flow Longitude: 2.572
Bx: -2.944 nT
Temperature: 58708.71 K
Lead Time: 81.23 hour(s)
Difference: 16.88 hour(s)
Prediction submitted by Jiajia Liu (UoS) on 2019-03-21T11:29Z
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Important Disclaimer Notice

If you are looking for the official U.S. Government forecast for space weather, please go to NOAA's Space Weather Prediction Center ( This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.

NASA Official: Dr. Maria Kuznetsova
Curator: Chiu Wiegand