Version:2.7.1
Catalog
ResourceID
spase://NASA/Catalog/MAVEN/SIR_CATALOGUE
NamingAuthority
NASA
ResourceType
Catalog
ResourceHeader
ResourceName
High speed solar wind streams and solar wind interaction regions
SIR CATALOGUE v1.0
ReleaseDate
2026-02-02 13:10:23Z
RevisionHistory
RevisionEvent
ReleaseDate
2025-06-25 11:28:59
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2026-02-02 13:10:23Z
Note
Added MetadataRightsList. 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
Description
This is the HELIO4CAST high speed stream and stream interaction catalog (SIR), based on in situ magnetic field and bulk plasma observations in the heliosphere.
Contacts
InformationURL
AccessInformation
RepositoryID
AccessURL
Format
HTML
InstrumentIDs
PhenomenonType
SolarWindExtreme
TimeSpan
StartDate
2014-12-03 03:25:00
StopDate
2017-12-20 01:00:00
Parameter #1
Name
sircat_id:
Description
sircat_id: The unique identifier for the observed stream interaction region (SIR). unit: string.
Support
SupportQuantity
Housekeeping
Parameter #2
Name
sc insitu
Description
sc insitu: The name of the in situ observing spacecraft. unit: string.
Support
Parameter #3
Name
sir_start_time
Description
sir_start_time: Stream interaction region start time. unit: UTC.
Support
Parameter #4
Name
hss_start_time
Description
hss_start_time: High speed stream start time, equal to the stream interface time (for STEREO, MAVEN catalogs). unit: UTC.
Support
Parameter #5
Name
sir_end_time
Description
sir_end_time: End time of the stream interaction region. unit: UTC.
Support
Parameter #6
Name
hss_end_time
Description
hss_end_time: High speed stream end time, criterion at Wind: speed < 450 km/s. unit: UTC.
Support
Parameter #7
Name
hss_vtmax_time
Description
hss_vtmax_time: High speed stream maxmimum speed time. unit: UTC.
Support
Parameter #8
Name
sc_heliodistance
Description
sc_heliodistance: Heliocentric distance of the spacecraft at hss_start_time. unit: AU.
Support
SupportQuantity
Positional
Parameter #9
Name
sc_long_heeq
Description
sc_long_heeq: Heliospheric longitude of the spacecraft at hss_start_time, range [-180,180]. unit: degree (HEEQ).
Support
SupportQuantity
Positional
Parameter #10
Name
sc_lat_heeq
Description
sc_lat_heeq: Heliospheric latitude of the spacecraft at hss_start_time, range [-90,90]. unit: degree (HEEQ).
Support
SupportQuantity
Positional
Parameter #11
Name
hss_vt_max
Description
hss_vt_max: Maximum proton speed from hss_start_time to hss_end_time. unit: km/s.
Support
Parameter #12
Name
hss_vt_mean
Description
hss_vt_mean: Mean proton speed from hss_start_time to hss_end_time. unit: km/s.
Support
Parameter #13
Name
hss_vt_std
Description
hss_vt_std: Standard deviation of proton speed from hss_start_time to hss_end_time. unit: km/s
Support
Parameter #14
Name
hss_vt_mean
Description
hss_vt_mean: Mean proton speed from hss_start_time to hss_end_time. unit: km/s
Support
Parameter #15
Name
hss_bt_max
Description
hss_bt_max: Maximum total magnetic field from hss_start_time to hss_end_time. unit: nT
Support
Parameter #16
Name
hss_bt_mean
Description
hss_bt_mean: Mean total magnetic field from hss_start_time to hss_end_time. unit: nT
Support
Parameter #17
Name
hss_bt_std
Description
hss_bt_std: Standard deviation of total magnetic field from hss_start_time to hss_end_time. unit: nT
Support
Parameter #18
Name
hss_bz_min
Description
hss_bz_min: Minimum Bz component (SCEQ) from hss_start_time to hss_end_time. unit: nT
Support
Parameter #19
Name
hss_bz_mean
Description
hss_bz_mean: Mean Bz component (SCEQ) from hss_start_time to hss_end_time. unit: nT
Support
Parameter #20
Name
hss_bz_std
Description
hss_bz_std: Standard deviation of Bz component (SCEQ) from hss_start_time to hss_end_time. unit: nT
Support
Parameter #21
Name
hss_duration
Description
hss_duration: Duration of high speed stream from hss_start_time to hss_end_time. unit: hours
Support
Parameter #22
Name
ir_vt_mean
Description
ir_vt_mean: Mean proton speed from hss_start_time to sir_end_time. unit: km/s
Support
Parameter #23
Name
sir_vt_std
Description
sir_vt_std: Standard deviation of proton speed from sir_start_time to hss_end_time. unit: km/s
Support
Parameter #24
Name
sir_vt_mean
Description
sir_vt_mean: Mean proton speed from hss_start_time to sir_end_time. unit: km/s
Support
Parameter #25
Name
sir_bt_max
Description
sir_bt_max: Maximum total magnetic field from sir_start_time to hss_end_time. unit: nT
Support
Parameter #26
Name
sir_bt_mean
Description
sir_bt_mean: Mean total magnetic field from sir_start_time to sir_end_time. unit: nT
Support
Parameter #27
Name
sir_bt_std
Description
sir_bt_std: Standard deviation of total magnetic field from sir_start_time to sir_end_time. unit: nT
Support
Parameter #28
Name
sir_bz_min
Description
sir_bz_min: Minimum Bz component (SCEQ) from sir_start_time to sir_end_time. unit: nT
Support
Parameter #29
Name
sir_bz_mean
Description
sir_bz_mean: Mean Bz component (SCEQ) from sir_start_time to sir_end_time. unit: nT
Support
Parameter #30
Name
sir_bz_std
Description
sir_bz_std: Standard deviation of Bz component (SCEQ) from sir_start_time to sir_end_time. unit: nT
Support
Parameter #31
Name
sir_duration
Description
sir_duration: Duration of stream interaction region from sir_start_time to sir_end_time. unit: hours
Support
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