SPASE Resource Description

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} function getVersionedBibTeX(bibtex) { /* Add version field as suggested by August (Gus) Muench, Journals Data Editor, American Astronomical Society (email dated 7/7/25) */ const accessVersion = ", version={Accessed on " + currentIsoDateStr + "}"; const modifiedBibtex = bibtex.substring(0, bibtex.lastIndexOf("}")) + accessVersion + "}"; return modifiedBibtex; } function getBlob(text) { return new Blob([text], { type: "text/plain"}); } function clipboardAlert(text) { alert(text + "\nCopied to clipboard"); } function clipCitation(doi) { document.body.style.cursor = 'wait'; let url = "https://citation.doi.org/format?doi=" + doi.replace("https://doi.org/", "") + String.fromCodePoint(38) + "style=bibtex" + String.fromCodePoint(38) + "lang=en-US"; const text = new ClipboardItem({ "text/plain": fetch(url) .then(getResponseText) .then(getVersionedBibTeX) .then(getBlob) }); navigator.clipboard.write([text]); text.getType("text/plain") .then(getResponseText) .then(clipboardAlert); } function toggle_usa_banner_details() { const details = document.getElementById("usa-banner-details"); 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 Virtual Magnetospheric Observatory SAC-C Mag-F: High Precision Magnetic Scalar Data ResourceID spase://NASA/NumericalData/SAC-C/CSC/MAGF/PT1S Description This dataset contains 1 second measurements of the scalar magnetic field from from the Compact Spherical Coil (CSC) Fluxgate Vector Magnetometer on the SAC-C spacecraft. 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/SAC-C/CSC/MAGF/PT1S NamingAuthority NASA ResourceType NumericalData ResourceHeader ResourceName SAC-C Mag-F: High Precision Magnetic Scalar Data AlternateName Satélite de Aplicaciones Científicas-C Mag-F: Calibrated CSC data ReleaseDate 2025-12-04 13:31:22Z RevisionHistory RevisionEvent ReleaseDate 2020-07-07 21:15:17Z Note Only known prior ReleaseDate of the metadata RevisionEvent ReleaseDate 2025-12-04 13:31:22Z 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 dataset contains 1 second measurements of the scalar magnetic field from from the Compact Spherical Coil (CSC) Fluxgate Vector Magnetometer on the SAC-C spacecraft. Acknowledgement Centre National d'Etudes Spatiales (France); National Aeronautics and Space Administration (United States); Danish Space Research Institute (Denmark); National Commission of Space Activities (CONAE) (Argentina); Instituto Nacional de Pesquisas Espaciais, Brazil (Brazil); Agenzia Spaziale Italiana (Italy) Contacts Role Person StartDate StopDate Note 1. ProjectScientist spase://SMWG/Person/UNKNOWN 2. MetadataContact spase://SMWG/Person/James.M.Weygand InformationURL Name The SAC-C Project URL https://directory.eoportal.org/web/eoportal/satellite-missions/s/sac-c Description Information about the SAC-C Compact Spherical Coil Fluxgate Vector Magnetometer. Language en PriorIDs spase://VMO/NumericalData/SAC-C/CSC/MAGF/PT1S spase://VSPO/NumericalData/SAC-C/CSC/MAGF/PT1S AccessInformation RepositoryID spase://SMWG/Repository/SAC-C Availability Online AccessRights Open AccessURL Name Virtual Magnetospheric Observatory URL http://vmo.igpp.ucla.edu/data1/SAC-C/ Description Compact Spherical Coil Fluxgate Vector Magnetometer MAG-R data. Format Text Acknowledgement Dr. Jose J Achache; Dr. Ib Laursen ProcessingLevel Calibrated ProviderResourceName Overhauser Effect Scalar Magnetometer Data ProviderProcessingLevel Calibrated InstrumentIDs spase://SMWG/Instrument/SAC-C/CSC MeasurementType MagneticField TemporalDescription TimeSpan StartDate 2001-01-23 00:00:00Z StopDate 2002-05-04 23:59:59Z Note It is not clear if this mission is still active. Cadence PT1S ObservedRegion Earth.NearSurface ObservedRegion Earth.NearSurface.AuroralRegion ObservedRegion Earth.NearSurface.Ionosphere ObservedRegion Earth.NearSurface.PolarCap Parameter #1 Name Universal Time ParameterKey Time Description Universal time columns from left to right are: year-month-day (yyyy-mm-dd) and seconds of the day. Cadence PT1S Structure Size 2 Description Universal Time expressed using a 6-column day, month, year, hour, minute, second representation Element Name Year-Month-Day Index 1 ParameterKey Column_1-Column_2-Column_3 Element Name Second Index 2 ParameterKey Second Support SupportQuantity Temporal Parameter #2 Name SAC-C Spacecraft Position Vector in ECEF polar coordinates ParameterKey Position Vectors Description Location of the spacecraft in Earth Centered, Earth Fixed polar coordinates in units of Re and degrees. Cadence PT1S CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName ECEF Structure Size 3 Element Name Radius Qualifier Component.I Index 1 ParameterKey r Units km Element Name Theta Qualifier Component.J Index 2 ParameterKey theta Units degrees Element Name Phi Qualifier Component.K Index 3 ParameterKey Phi Units degrees Support SupportQuantity Positional Parameter #3 Name Information and quality flag relating to position. ParameterKey Qpos Description The bits have the following interpretation (bit 1 is least significant bit - LSB): 0 = poor quality, 1 = Good quality (below 25 m spatial). Cadence PT1S Units unitless Support SupportQuantity Other Parameter #4 Name Magnetic Field Magnitude ParameterKey F Description SAC-C Mag-F Magnitude data. Cadence PT1S Units nT Field Qualifier Magnitude FieldQuantity Magnetic Parameter #5 Name Information and quality flag relating to F (scalar magnetic measurement). ParameterKey Qf Description Information and quality flag relating to F (scalar magnetic measurement). The bits of this CDF_UINT2 has the following interpretation (bit 1 is least significant bit - LSB): 1. Frequency calibration: 0 = not applied (poor), 1 = applied (good). 2. Has occasional time shifts: 0 = yes (poor), 1 = no (good). 3. Spacecraft disturbance: 0 = ignored, 1 = compensated. 4. Scalar magnetometer temperature information: 0 = unavailable, 1 = available. 5. Not currently used = 0. 6. Not currently used = 0. 7. Not currently used = 0. 8. Scalar derived from: 0 = Scalar magnetometer, 1 = Vector magnetometer. 9. General vector data quality: 0 = poor, 1 = good. 10. Vector magnetometer sample rate: 0 = 25 Hz, 1 = 100 Hz. 11. Vector magnetometer temperature information: 0 = unavailable, 1 = available. 12. Not currently used = 0. 13. Torquer coils: 0 = on, 1 = off. 14. Torquer coils disturbance: 0 = >1nT, 1 = <1nT. 15. Scalar magnetometer power: 0 = on, 1 = off. 16. Not currently used = 0. If bit 8 is set to 0 (Scalar magnetometer), one can rely on the bits 1-7. If bit 8 is is set to 1 (Vector magnetometer), one can rely on bits 9-16. Further information may be included in this field. Example: QF = 12928 = 011001010000000b: Scalar derived from Vector magnetometer, scalar magnetometer on, torquer coils off (=>no disturbance), poor attitude, vector magnetometer temperature information unavailable, 100 Hz poor quality CSC data. Example: To quickly identify Ovh samples (bit 8) do: if QF/28-1 is even then from Ovh. Cadence PT1S Units unitless Support SupportQuantity Other