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: 2021-05-13T19:09Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2021-05-13T19:09:00-CME-001 (version 1)
Source Location: N18W04
Active Region Number: 12822
Note Keyword:
Source Signature Keyword:
Morphology Keyword:
Note: The source of this CME is an eruption seen in SDO/AIA 193 starting at 2021-05-13T15:42Z from Active Region 12822. The eruption appears to deflect northward and features a broad dimming region north of the active region. A post-eruption arcade field line movements are visible in SDO/AIA 193 and 171. This eruption has two B-class flares occur during it (one B1.1 class flare peaking at 2021-05-13T16:21Z and one B1.2 class flare peaking at 2021-05-13T18:15Z). The resulting CME is best seen to the West in STEREO-A COR2 imagery. It appears as a faint partial-halo to the North of SOHO/LASCO C2 and C3 coronagraphs.
Submitted on 2021-05-14T19:58Z by Carina Alden

No Notification has been sent for this activity yet.

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 BW SH true SWPC_CAT -8.0 10.0 475.0 S 27.0 2021-05-14T02:43Z Due to the faintness and a slight dimpled front from SOHO's point-of-view, this CME was measured using the shock front seen in SOHO/LASCO C2 and STEREO-A COR2 imagery. When measuring using the black/white boundary, speeds were closer to 350-400km/s. 1: Result 1 (2.0 AU)
Earth = 2021-05-16T21:49Z
Carina Alden on 2021-05-14T20:05Z



All directly linked activities:
No Linked Activity Found.


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