Name: Cassini Cruise Phase 1-Minute Magnetometer Data
Creator: Strangeway, Robert J.
Published: 2025-11-14
License: https://spdx.org/licenses/CC0-1.0.html

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const indicator = document.getElementById("usa-banner-indicator"); if (details.style.display === "none") { details.style.display = "block"; indicator.textContent = "^"; } else { details.style.display = "none"; indicator.textContent = "v"; } } const monthName=new Array("January","February","March","April","May","June","July","August","September","October","November","December"); let currentDate = new Date(); let currentIsoDateStr = currentDate.toISOString().substring(0, 10); let currentDateStr = currentDate.getFullYear() + '-' + monthName[currentDate.getMonth()] + '-' + currentDate.getDate(); Data Access FTPBrowser FTPS from SPDF (not with most browsers) HTTPS from SPDF Cassini Cruise Phase 1-Minute Magnetometer Data var authors='Strangeway, Robert J.'; document.write(authors); (2025). Cassini Cruise Phase 1-Minute Magnetometer Data. [Data set]. Space Physics Data Facility. https://doi.org/10.48322/gn88-1h66. Accessed on document.write(currentDateStr);. Note: Proper references, including Copy BibTeX Citation or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication. ResourceID spase://NASA/NumericalData/Cassini/MAG/Cruise.Phase/PT1M Description Cassini cruise phase 1-minute-averaged magnetic field data taken during the interval between mid-1999 when near-continuous magnetic field observations were begun and the mid-2004 insertion of Cassini into Saturn orbit. There are no planetary encounter data included. The data are in RTN coordinates. The data are mostly from the fluxgate magnetometer (FGM). The table at https://spdf.gsfc.nasa.gov/pub/data/cassini/vhm.txt identifies the 52 days in 2000-2004 for which the data are solely from the vector helium magnetometer (VHM). Days not in the table contain only FGM data. The data were produced from raw (L1A) data at the PDS/PPI node using software provided by the Cassini MAG team, and employing the latest calibration available. PDS/PPI produced both 1-sec vectors and 1-min averages. The MAG team reports that while range-0 data are well calibrated for both FGM and VHM, higher range data need improvement. Metadata Rights CC0-1.0: Creative Commons Zero v1.0 Universal Note CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license. View XML | Edit Details Version:2.7.1 NumericalData ResourceID spase://NASA/NumericalData/Cassini/MAG/Cruise.Phase/PT1M NamingAuthority NASA ResourceType NumericalData ResourceHeader ResourceName Cassini Cruise Phase 1-Minute Magnetometer Data DOI https://doi.org/10.48322/gn88-1h66 ReleaseDate 2026-07-21 12:04:40Z RevisionHistory RevisionEvent ReleaseDate 2021-03-10 20:13:28Z Note Only known prior ReleaseDate of the metadata RevisionEvent ReleaseDate 2025-11-14 16:01:56Z Note Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB RevisionEvent ReleaseDate 2025-12-04 13:29:01Z Note Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB RevisionEvent ReleaseDate 2026-07-21 12:04:40Z Note Added HelioData InformationURL. JWL Description Cassini cruise phase 1-minute-averaged magnetic field data taken during the interval between mid-1999 when near-continuous magnetic field observations were begun and the mid-2004 insertion of Cassini into Saturn orbit. There are no planetary encounter data included. The data are in RTN coordinates. The data are mostly from the fluxgate magnetometer (FGM). The table at https://spdf.gsfc.nasa.gov/pub/data/cassini/vhm.txt identifies the 52 days in 2000-2004 for which the data are solely from the vector helium magnetometer (VHM). Days not in the table contain only FGM data. The data were produced from raw (L1A) data at the PDS/PPI node using software provided by the Cassini MAG team, and employing the latest calibration available. PDS/PPI produced both 1-sec vectors and 1-min averages. The MAG team reports that while range-0 data are well calibrated for both FGM and VHM, higher range data need improvement. Acknowledgement Please acknowledge the PI and the National Space Science Data Center for these data PublicationInfo Authors Strangeway, Robert J. PublicationDate 2025-11-14 16:01:56Z PublishedBy Space Physics Data Facility Contacts Role Person StartDate StopDate Note 1. TechnicalContact spase://SMWG/Person/Natalia.E.Papitashvili 2. DataProducer spase://SMWG/Person/Raymond.J.Walker 3. PrincipalInvestigator spase://SMWG/Person/Robert.J.Strangeway InformationURL Name README for Cassini Magnetometer Data URL https://spdf.gsfc.nasa.gov/pub/data/cassini/mag_1min/ascii/aareadme.txt InformationURL Name HelioData URL https://helio.data.nasa.gov/dataset/Cassini_MAG_Cruise.Phase_PT1M Description The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more. PriorIDs spase://VHO/NumericalData/Cassini/MAG/Cruise.Phase/PT1M spase://VSPO/NumericalData/Cassini/MAG/ASCII/PT1M spase://VSPO/NumericalData/P_CASSINI_MAG_1M spase://VSPO/NumericalData/Cassini/MAG/PT60S spase://VSPO/NumericalData/Cassini/MAG/Cruise.Phase/PT1M AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF Availability Online AccessRights Open RightsList Rights SchemeURI https://spdx.org/licenses/ RightsIdentifierScheme SPDX RightsIdentifier CC0-1.0 RightsURI https://spdx.org/licenses/CC0-1.0.html RightsName Creative Commons Zero v1.0 Universal Note CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products AccessURL Name FTPBrowser URL https://omniweb.gsfc.nasa.gov/ftpbrowser/cassini_min.html AccessURL Name FTPS from SPDF (not with most browsers) URL ftps://spdf.gsfc.nasa.gov/pub/data/cassini/mag_1min/ascii/ Description In ASCII via ftp from SPDF AccessURL Name HTTPS from SPDF URL https://spdf.gsfc.nasa.gov/pub/data/cassini/mag_1min/ascii/ Description In ASCII via HTTP from SPDF Format Text.ASCII DataExtent Quantity 54 Units MB Per P1Y InstrumentIDs spase://SMWG/Instrument/Cassini/MAG MeasurementType MagneticField TemporalDescription TimeSpan StartDate 2000-01-01 00:00:00Z StopDate 2004-12-31 23:59:59Z Cadence PT1M ObservedRegion Heliosphere.NearEarth Parameter #1 Name Time ParameterKey Column_1 Description Time YYYY DOY HH MM for averages built from MM:00 to (MM+1):00 Caveats Two changes were made to the PDS/PPI-provided files. First, PDS time tags of the format YYYY-MM-DDTHH:MM:DD were replaced by FTPBrowser time tags of the format YYYY DDD HH MM. Secondly, minutes with no data had no record in the PDS-provided files but have records, with all fill values except the time tags, in the FTPBrowser version. Support SupportQuantity Temporal Parameter #2 Name Br ParameterKey Column_2 Description BR, R component in RTN, nT Units nT CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName RTN Field Qualifier Component.I FieldQuantity Magnetic Parameter #3 Name Bt ParameterKey Column_3 Description BT, T component in RTN, nT Units nT CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName RTN Field Qualifier Component.J FieldQuantity Magnetic Parameter #4 Name Bn ParameterKey Column_4 Description BN, N component in RTN, nT Units nT CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName RTN Field Qualifier Component.K FieldQuantity Magnetic Parameter #5 Name B ParameterKey Column_5 Description B, field magnitude, nT Units nT CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName RTN Field Qualifier Magnitude FieldQuantity Magnetic Parameter #6 Name Range ParameterKey Column_6 Description Heliocentric radial distance of spacecraft, AU Units AU Support SupportQuantity Positional Parameter #7 Name Latitude ParameterKey Column_7 Description Heliocentric latitude of spacecraft, deg. Caveats IHG is what NSSDC/SPDF typically refers to as HGI Units degrees CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName HGI Support SupportQuantity Positional Parameter #8 Name Longitude ParameterKey Column_8 Description Longitude of spacecraft, East from Sun-Aries line, deg. Caveats IHG is what NSSDC/SPDF typically refers to as HGI Units degrees CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName HGI Support SupportQuantity Positional Parameter #9 Name X_IHG ParameterKey Column_9 Description Inertial Heliographic X component of sun-to-spacecraft vector, AU Caveats IHG is what NSSDC/SPDF typically refers to as HGI Units AU CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName HGI Support SupportQuantity Positional Parameter #10 Name Y_IHG ParameterKey Column_10 Description Inertial Heliographic Y component of sun-to-spacecraft vector, AU Caveats IHG is what NSSDC/SPDF typically refers to as HGI Units AU CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName HGI Support SupportQuantity Positional Parameter #11 Name Z_IHG ParameterKey Column_11 Description Inertial Heliographic Z component of sun-to-spacecraft vector, AU Caveats IHG is what NSSDC/SPDF typically refers to as HGI Units AU CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName HGI Support SupportQuantity Positional Parameter #12 Name NPTS ParameterKey Column_12 Description Number of 1-second values in the 1-minute average Support SupportQuantity Other