2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/Catalog/STEREO/ICME.List NASA Catalog STEREO Interplanetary CME List https://doi.org/10.48322/htwx-f635 2026-02-02T13:10:25Z 2023-05-11T12:34:56.789 Updated to SPASE Version 2.5.0 if needed, fix broken URL, Added DOI information, JMW 2023-09-27T12:34:56.789 Updated Authors. JMW 2025-09-25T17:31:52 PhenomenonType has been changed from CME to ICME 12 parameters added by Olga Uritskaya 2026-02-02T13:10:25Z Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. ZCB This catalog has a list of interplanetary coronal mass ejections (ICME) observed by STEREO-A and/or STEREO-B between December 2006 and March 2009. For each of the 24 observations, the following information is given: event start time, start time of the "magnetic obstacle (~flux rope)," event end time, maximum values of thermal pressure, magnetic field magnitude and flow speed, a measure of speed change over the event, a three-fold event characterization based on the pressure profile, and a comment. It is expected that this list, given in both PDF and Excel formats, will be updated periodically. STEREO IMPACT/Magnetometer Team L.K. Jian, C.T. Russell, J.G. Luhmann, and A.B. Galvin 2022-01-01T00:00:00 NASA, STEREO Science Center spase://SMWG/Person/Lan.Jian GeneralContact spase://SMWG/Person/Olga.Y.Uritskaya MetadataContact STEREO L3 data page https://stereo-ssc.nascom.nasa.gov/data/ins_data/impact/level3/ spase://VSPO/Catalog/STEREO_ICME_List spase://VSPO/Catalog/STEREO/ICME.List spase://SMWG/Repository/NASA/GSFC/STEREO_SC Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products ICME list, PDF version https://stereo-ssc.nascom.nasa.gov/data/ins_data/impact/level3/STEREO_Level3_ICME.pdf For Excel version, go to Information URL above Text spase://SMWG/Instrument/STEREO-A/IMPACT/MAG spase://SMWG/Instrument/STEREO-B/IMPACT/MAG spase://SMWG/Instrument/STEREO-A/PLASTIC spase://SMWG/Instrument/STEREO-B/PLASTIC InterplanetaryCoronalMassEjection 2006-12-14T00:00:00 -P6M As of October 2009, ICME's through March 2009 were included # Housekeeping STEREO STEREO spacecraft, A or/and B InstrumentMode Start time [Year Doy Month/Day HH:MM] Temporal Magnetic obstacle (~ flux rope) start time Magnetic obstacle (~flux rope) start time: if it is different from the ICME start time, there is a sheath region. NaN indicates there is no clear magnetic obstacle, possibly because of a glance through of the sheath region. Temporal Magnetic obstacle End time Temporal Ptmax [pPa] Other Bmax [nT] Other Vmax [km/s] Velocity ∆V [km/s] ∆V: temporal variation of solar wind speed over one event, negative value indicating solar wind is expanding, and "~" means the solar wind speed remains almost constant or does not change systematically over the event despite back-and-forth changes. Velocity Group Group: We sort ICMEs into 3 groups depending on their temporal profiles of Pt. Corresponding to the Group 1, 2, and 3 ICMEs, the Pt profile, excluding any shock and/or sheath region (if present), respectively, has a central pressure maximum, a steady plateau, or a gradual decay. In the hypothesis that all ICMEs have a central flux rope, these three groups of Pt profiles are due to different approach distances to the central flux rope. Group 1 ICMEs are assumed to be the ones penetrated by spacecraft near the flux rope axis, and they usually present signatures of magnetic clouds. See Jian et al. (2006) for more detail. Remark MC (2 for better defined) DataQuality Comment Remark