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Zond 1 was a member of the Soviet Zond program. It was the second Soviet research spacecraft to successfully reach Venus, although communications had failed by that time. It carried a 90 cm spherical landing capsule, containing experiments for chemical analysis of the atmosphere, gamma-ray measurements of surface rocks, a photometer, temperature and pressure gauges, and a motion/rocking sensor in case it landed in water.
The spacecraft, a Venera 3MV-1, was launched on April 2, 1964 from Tyuratam. During the cruise phase, a slow leak from a cracked sensor window caused the spacecraft to depressurize. An ill-timed command from ground control turned on its radio system while there was still a rarefied atmosphere inside, causing the electronics to short out by corona discharge. Communication was subsequently maintained via the transmitter in the landing capsule, and space radiation and atomic-hydrogen spectrometer measurements were performed. However, all communications had failed by May 14. It passed 100,000km from Venus on July 14, 1964, and went into heliocentric orbit.
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| Preceded by none |
Zond program | Succeeded by Zond 1964A |
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- This page was last modified on 23 October 2008, at 01:09.
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