DONKI Header

Space Weather Database Of Notifications, Knowledge, Information (DONKI)

DONKI: Menu Page

Go to:

 DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2021-12-15T05:00Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
STEREO A: SECCHI/COR2
Activity ID: 2021-12-15T05:00:00-CME-001 (version 2)
Source Location: S25E45
Active Region Number: 12907
Note Keyword:
Faint: Faint event; may affect type assignment
HAL: Halo CME
Source Signature Keyword:
DIM: Dimming
EUVW: EUV Wave
Morphology Keyword:
Note: This CME is associated with an eruption near AR 12907 (near S25E45) which exhibits dimming and a small EUV wave visible in SDO AIA 193 beginning 2021-12-15T01:30Z. Northward deflection of source is apparent in SDO's field-of-view.
Submitted on 2021-12-15T19:33Z by Michelangelo Romano

A Notification with ID 20211215-AL-002 was sent on 2021-12-15T20:23Z
A Notification with ID 20211216-AL-001 was sent on 2021-12-16T12:39Z

The List of CME Analysis already entered:
Event Type Catalog
Measurement TypeCME measurement type: Leading Edge (LE), Shock Front (SH), Right Hand Boundary (RHB), Left Hand Boundary (LHB), Black/White Boundary (BW), Prominence Core (COR), Disconnection Front (DIS), Trailing Edge (TE).
Prime?"primary flag" which is either True or False. If there are multiple CME analysis entries for a single CME, earlier measurements are marked as false when new or more accurate measurements are made. This is a helpful flag if you would like to download only one most accurate CME analysis per CME
 Technique Long Lat Speed Type Half Width Time 21.5 Note WSA-ENLIL+Cone Result(s) Submitted By
CME Analysis M2M_CATALOG LE true SWPC_CAT -42.0 2.0 680.0 C 24.0 2021-12-15T11:33Z This SWPC_CAT measurement approximates the longitude of the CME using the visible source signature in SDO AIA 193 and also by pairing the leading edge in SOHO LASCO C3 difference imagery with the faint outline of a halo CME observed in STEREO A COR2 difference imagery. 1: Result 1 (2.0 AU)
Earth = 2021-12-18T09:00Z (PE: -33.5 h)
STEREO A = 2021-12-17T22:17Z
Solar Orbiter = 2021-12-18T06:00Z
Michelangelo Romano on 2021-12-15T19:32Z



All directly linked activities:
2021-12-15T01:36:00-FLR-001
FLR Type: C2.1
2021-12-19T18:28:00-IPS-001
Location: Earth
2021-12-19T18:59:00-MPC-001


Comments by users:
0 comment received.
Insert title here

The Moon to Mars Space Weather Analysis Office and other entities provide data to DONKI as a courtesy to the community.
By visiting this site, you acknowledge that you understand and agree to the 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 (https://swpc.noaa.gov). This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.

Curator: Chiu Wiegand | NASA Official: Dr. Masha Kuznetsova | Privacy and Security Notices | Accessibility | CCMC Data Collection Consent Agreement