NASA NTRS · 19770020223
Satellite situation report, volume 17, no. 2
Abstract
Space objects in orbit are listed as well as those which decayed during the reporting period. Data provided include international designation and catalog number, nation of source, launch date, and inclination, apogee and perigee. Transmitting frequencies for satellites being monitored by NASA space flight tracking and data network are given.
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1977-04-30. Satellite situation report, volume 17, no. 2. https://ntrs.nasa.gov/citations/19770020223
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