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HEAO-A nominal scanning observation scheduleThe HEAO-A observatory, scheduled for launch in late June 1977, will spend most of its orbital lifetime in a scanning mode, spining from 0.03 to 0.1 rpm about an axis aligned with the sun. The dates of availability in the scan band are given for a list of 248 X-ray sources. Celestial maps of source locations and scan planes, and examples of the nighttime elevation of available sources are presented. This document is intended to aid ground-based observers in planning coordinated observations with HEAO-A.
Document ID
19770016219
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Fishman, G. J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Stone, R. L. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1977
Subject Category
Launch Vehicles And Space Vehicles
Report/Patent Number
NASA-TM-X-73391
Report Number: NASA-TM-X-73391
Accession Number
77N23163
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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