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Nimbus 4/IRLS Balloon Interrogation Package (BIP)The balloon interrogation package (BIP), an integral part of the overall interrogation, recording, and location subsystems (IRLS) for the Nimbus 4 program, is described. The BIP is a self-contained, integrated transponder designed to be carried aloft by a constant altitude, superpressure balloon to an altitude of 67,000 or 78,000 feet. After launch the BIP senses high-altitude balloon overpressure and temperature, and upon receipt of an interrogated command from the IRLS aboard the Nimbus 4 satellite, the BIP enodes the data on a real-time basis into a pulse-code modulation (PCM) format and transmits this data to the satellite. A summary of the program activity to produce 30 BIP systems and to support balloon launches from Ascension Island is presented.
Document ID
19720013760
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Date Acquired
September 2, 2013
Publication Date
October 1, 1971
Subject Category
Instrumentation And Photography
Report/Patent Number
NASA-CR-122375
Accession Number
72N21410
Funding Number(s)
CONTRACT_GRANT: NAS5-21110
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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