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Interplanetary Shock (or CME Arrival)
Catalog: M2M_CATALOG
Location: Earth
Event Time: 2023-03-23T09:10Z ( DSCOVR: PLASMAG )
All Detecting Spacecrafts:
DSCOVR: PLASMAG
ACE: SWEPAM
ACE: MAG
Activity ID: 2023-03-23T09:10:00-IPS-001 (version 3)
Quality of ICME Signature: 2 (clear signatures)
Note: Clear interplanetary shock signature characterized by a weak but rapid enhancement in the magnetic field components, small but rapid rise in density from 14 particles/cc to 18 particles/cc, and small but rapid wind speed increase from 465 km/s to 480 km/s. Magnetic field and solar wind density continue to increase further after the IPS. Seems to be associated with CME: 2023-03-2014:42Z based on forecast consensus for this event but may possibly be associated with CME: 2023-03-20T02:41Z. From Tarik Mohammad, LASSOS: start of the sheath is around 2023-03-23T05Z where you see enhancements in the total magnetic field and also density. The background solar wind is quite different from normal levels with higher density (normal density around 5/cc) and speed (normal speed around 350-400 km/s). This can be a reason for this ICME not to have an associated shock. The start of the magnetic flux rope is ~13:30Z coinciding with the enhancement in the total field and drop in density. 2023-03-24T06:50Z is the possible end time of the CME based on an increase in temperature beyond this point and the field components becoming less coherent.

Submitted on 2023-08-04T22:16Z by Anna Chulaki

A Notification with ID 20230323-AL-001 was sent on 2023-03-23T12:43Z

All directly linked activities:
2023-03-20T02:41:00-CME-001
2023-03-20T14:42:00-CME-001
2023-03-23T12:00:00-GST-001
NOAA Kp: 7.0 (2023-03-23T15:00Z)
NOAA Kp: 6.0 (2023-03-23T21:00Z)
NOAA Kp: 7.0 (2023-03-24T00:00Z)
NOAA Kp: 6.0 (2023-03-24T03:00Z)
NOAA Kp: 8.0 (2023-03-24T06:00Z)
NOAA Kp: 6.0 (2023-03-24T09:00Z)
2023-03-23T14:52:00-MPC-001


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