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astronautix.com Pioneer 13

Venus Multiprobe
Venus Multiprobe -

Credit: NASA. 14,686 bytes. 340 x 279 pixels.



Class: Planetary. Type: Venus. Nation: United States. Agency: NASA, Ames Research Center. Manufacturer: Hughes.

The Pioneer Venus Multiprobe consisted of a bus which carried one large and three small atmospheric probes. . After release from the carrier vehicle, the probes entered the atmosphere at 41,600 km/hr, followed by the bus. The small probes were each targeted at different parts of the planet and were named accordingly. The North probe entered the atmosphere at about 60 degrees north latitude on the day side. The night probe entered on the night side. The day probe entered well into the day side, and was the only one of the four probes which continued to send radio signals back after impact, for 67 minutes. The carrier vehicle, not designed for atmospheric re-entry, followed the probes into the Venusian environment and relayed data about the characteristics of the extreme outer atmosphere until it was destroyed by atmospheric heating. Despite their drastically different roles, the Orbiter and Multiprobe were very similar in design. The use of identical systems (including flight hardware, flight software, and ground test equipment) and incorporation of existing designs from previous missions (including OSO and Intelsat) allowed the mission to meet its objectives at minimum cost.

Spacecraft


Specification

Design Life: 4 months. Total Length: 2.9 m. Maximum Diameter: 2.5 m.


Pioneer 13 Chronology


08 August 1978 Pioneer Venus Probe 1 Program: Pioneer. Launch Site: Cape Canaveral . Launch Vehicle: Atlas Centaur SLV-3D. Mass: 315 kg.

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Last update 12 March 2001.
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