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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-08-30T20:09Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2025-08-30T20:09:00-CME-001 (version 2)
Source Location: N03E13
Active Region Number: 14199
Note Keyword:
FOV: Front Bright front; may be evidence of pileup
GAP: Data gap
Ha: Bright emission (likely H-alpha emission)
Source Signature Keyword:
FLR: Flare
DFLR: Double ribbon flare
PEA: Post eruption arcade
OFL: Moving/Opening field lines
BR: Brightening
DIM: Dimming
EUVW: EUV Wave
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: Wide CME observed first by STEREO A COR2 at 2025-08-30T20:09Z. Updated observations in SOHO LASCO C2/C3 and GOES CCOR-1 from preliminary analysis where they were not included due to field-of-view with GOES CCOR-1 and a downlink gap resuming at 2025-08-30T21:20Z for SOHO LASCO. The source for this CME is a long duration M2.7 class flare from AR 14199 (N03E13) which began at 2025-08-30T19:11Z and peaked at 2025-08-30T20:02Z, viewed well in SDO AIA 131. Wide field line opening, dimming, and an EUV wave are observed in SDO AIA 131/171/193/211 and GOES SUVI 284. Brightening as a double ribbon flare and post-eruptive arcade observed in SDO AIA 131/171/193/211/304 and GOES SUVI 304. Additionally observed from STEREO A EUVI 195 as field line opening and dimming, and STEREO A EUVI 304 as brightening, around N03E60 as viewed from STEREO A. 
Version 1 submitted on 2025-08-30T21:13Z by Tony Iampietro
Version 2 submitted on 2025-08-30T22:26Z by Tony Iampietro
A Notification with ID 20250830-AL-005 was sent on 2025-08-30T21:30Z
A Notification with ID 20250830-AL-006 was sent on 2025-08-30T22:06Z
A Notification with ID 20250831-AL-001 was sent on 2025-08-31T01:32Z
A Notification with ID 20250901-AL-001 was sent on 2025-09-01T13:01Z

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, this flag would indicate which analysis is considered most accurate per measurement type. This is a helpful flag if you would like to download only one most accurate CME analysis per CME per Measurement Type
 Technique Long Lat Speed Type Half Width Time 21.5 Note WSA-ENLIL+Cone Result(s) Measured On Submitted By
CME Analysis M2M_CATALOG SH true SWPC_CAT -8.0 5.0 1265.0 O 53.0 2025-08-30T22:44Z SHOCK analysis. Well-triangulated measurement between SOHO LASCO C2/C3 and STEREO A COR2, with a notably wider half width of 53 degrees. 1: Result 1 (2.0 AU)
Earth = 2025-09-01T15:55Z (PE: -4.5 h)
OSIRIS-APEX = 2025-09-01T16:40Z
STEREO A = 2025-09-01T18:57Z (PE: -23.1 h)
2: Result 2 (5.5 AU)
Earth = 2025-09-01T15:56Z (PE: -4.5 h)
OSIRIS-APEX = 2025-09-01T16:45Z
STEREO A = 2025-09-01T17:26Z (PE: -24.6 h)
Psyche = 2025-09-06T18:00Z
2025-08-30T23:22Z Tony Iampietro on 2025-08-30T23:22Z
CME Analysis M2M_CATALOG LE true SWPC_CAT -3.0 5.0 1303.0 O 34.0 2025-08-30T22:41Z BULK measurement update. Triangulated measurement between SOHO LASCO C2/C3 and STEREO A COR2. Halo signature in LASCO C2/C3 is notably dimpled and non-circular, especially compared to STEREO A COR2. This analysis is the best fit of the bulk material excluding a southward nose that travels slightly faster than the main front. 1: Result 1 (2.0 AU)
Earth = 2025-09-01T18:59Z (PE: -1.4 h)
OSIRIS-APEX = 2025-09-01T19:51Z
STEREO A = 2025-09-02T01:00Z (PE: -17.1 h)
2: Result 2 (2.0 AU)
Earth = 2025-09-01T18:24Z (PE: -2.0 h)
OSIRIS-APEX = 2025-09-01T18:28Z
STEREO A = 2025-09-01T08:00Z (PE: -34.0 h)
2025-08-30T23:22Z Tony Iampietro on 2025-08-30T23:22Z
CME Analysis M2M_CATALOG LE false SWPC_CAT -13.0 1.0 1317.0 O 35.0 2025-08-30T22:43Z PRELIMINARY BULK with single spacecraft STEREO A COR2A only, using the source longitude E13. Awaiting GOES CCOR-1 and SOHO LASCO C2/C3 for triangulation, parameters may vary with updated analysis. 1: Result 1 (2.0 AU)
Earth = 2025-09-01T19:21Z (PE: -1.1 h)
OSIRIS-APEX = 2025-09-01T20:51Z
STEREO A = 2025-09-02T09:00Z (PE: -9.1 h)
2025-08-30T23:06Z Tony Iampietro on 2025-08-30T23:06Z



All directly linked activities:
2025-08-30T19:11:00-FLR-001
FLR Type: M2.7
2025-09-01T20:26:00-IPS-001
Location: Earth
2025-09-01T21:00:00-GST-001
NOAA Kp: 6.0 (2025-09-02T00:00Z)
2025-09-02T18:03:00-IPS-001
Location: STEREO A


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