UARS PEM Level 2 VMAG DC V001 (UARPE2VMAGDC) at GES DISC

The Particle Environment Monitor (PEM) level 2 Vector Magnetometer (VMAG) DC daily product contains the Vector Magnetic Field component, UARS Aspect Magnetometers component, and UARS Torquer Bars component data converted to nanoTesla and milliAmp units. PEM was flown on the UARS spacecraft to measure the type, amount, energy, and distribution of charged particles injected into the Earth's thermosphere, mesosphere, and stratosphere.

The VMAG DC data range is from -65000 nT to +65000 nT, with 2 nT resolution. Measurements were from the three vector components, X, Y, and Z with respect to the UARS spacecraft orientation. The VMAG sensor consists of three orthogonal ring-core fluxgate sensors, surrounded by a thermal sphere. Stray magnetic fields from the spacecraft can be accounted for by use of the UARS torquer bar currents. The VMAG unit is located on the zenith boom of UARS. The UARS aspect magnetometers and torquer bars are located on the body of the UARS spacecraft.

There is one data file per day for the PEM VMAG DC product, and the temporal coverage is from Oct. 1, 1991 to Aug. 23, 2005. Spatial coverage for the VMAG DC product ranges between -57 and +57 degrees latitude. The VMAG DC data files are written in network binary format. For more information please review the PEM VMAG DC data format guide.

Data and Resources

Additional Info

Field Value
Maintainer J. WINNINGHAM
Last Updated February 19, 2025, 12:38 (UTC)
Created February 19, 2025, 12:38 (UTC)
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation Winningham, David J., et al.. 2006-06-06. UARPE2VMAGDC. Version 001. UARS PEM Level 2 VMAG DC V001. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://disc.gsfc.nasa.gov/datacollection/UARPE2VMAGDC_001.html. Digital Science Data.
creator Winningham, David J., et al.
data-presentation-form Digital Science Data
graphic-preview-file https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/UARPE2VMAGDC_001.gif
harvest_object_id df3f4a8d-7df9-4c2b-966d-5acf0f6b2a5e
harvest_source_id b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title DNG Legacy Data
identifier C1273348602-GES_DISC
issued 2006-06-06
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1273348602-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 2006-06-06
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
release-place Greenbelt, MD, USA
resource-type Dataset
series-name UARPE2VMAGDC
source_datajson_identifier true
source_hash d7f4dd7e99ef7ed97930334b568c5bd3fd8395defc3c83a896d02afef41d21a3
source_schema_version 1.1
spatial -180.0 -57.15 180.0 57.15
temporal 1991-09-15T00:00:00Z/2005-08-23T23:59:59.999Z
theme {UARS,geospatial}