NDLI: Calibration and evaluation of skylab altimetry for geodetic determination of the geoid (Document No: 19740010857)

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Calibration and evaluation of skylab altimetry for geodetic determination of the geoid (Document No: 19740010857)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Mourad, A. G.
Copyright Year	1974
Description	The author has identified the following significant results. The analysis was based on a time series intrinsic relationship between the satellite ephemeris, altimeter measured ranges, and the corresponding a priori values of subsatellite geoidal heights. Using, least squares processing with parameter weighting, the objective was to recover: (1) the absolute geoidal heights of the subsatellite points; and (2) the associated altimeter calibration constants. Preliminary results from Skylab mission SL-2 are given, using various combinations from two sets of orbit ephemeris and altimeter ranges. It is shown that correctly scaled geoidal heights cannot be deduced by merely subtracting the altimeter range from the geodetic height of the satellite unless the satellite ephemeris and the altimeter have no unknown significant systematic errors or biases and drifts. It is emphasized that the primary objective of the Skylab altimeter is to determine the instrument feasibility. Any additional applications of the data such as for geodesy, geophysics, and oceanography are desirable. Although accurate orbit is required for such applications, it is not a prerequisite for determining the instrument feasibility.
File Size	888799
Page Count	34
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19740010857
Archival Resource Key	ark:/13960/t53f9j02k
Language	English
Publisher Date	1974-03-15
Access Restriction	Open
Subject Keyword	Geophysics Satellite-borne Instruments Time Series Analysis Calibrating Geodesy Erep Skylab Program Altimeters Height Geoids Rangefinding 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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