NDLI: Magsat data processing: a report for investigators

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Magsat data processing: a report for investigators

Content Provider	NASA Technical Reports Server (NTRS)
Author	Langel, R. A. Jennings, T. Berbert, J.
Copyright Year	1981
Description	The in-flight attitude and vector magnetometer data bias recovery techniques and results are described. The attitude bias recoveries are based on comparisons with a magnetic field model and are thought to be accurate to 20 arcsec. The vector magnetometer bias recoveries are based on comparisons with the scalar magnetometer data and are thought to be accurate to 3 nT or better. The MAGSAT position accuracy goals of 60 m radially and 300 m horizontally were achieved for all but the last 3 weeks of Magsat lifetime. This claim is supported by ephemeris overlap statistics and by comparisons with ephemerides computed with an independent orbit program using data from an independent tracking network. MAGSAT time determination accuracy is estimated at 1 ms. Several errors in prelaunch assumptions regarding data time tags, which escaped detection in prelaunch data tests, and were discovered and corrected postlaunch are described. Data formats and products, especially the Investigator-B tapes, which contain auxiliary parameters in addition to the basic magnetometer and ephemeris data, are described.
File Size	30923880
Page Count	314
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19820017721
Archival Resource Key	ark:/13960/t85j2bw8g
Language	English
Publisher Date	1981-11-01
Access Restriction	Open
Subject Keyword	Earth Resources And Remote Sensing Geomagnetism Magnetometers Computer Compatible Tapes Earth Resources Program Data Acquisition Data Processing Tables Data Attitude Inclination Accuracy Decommutators Magnetic Anomalies Magsat a Satellite Graphs Charts Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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