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Ye-1/2 Mission to Earth's Moon

Mission Type: Impact
Launch Vehicle: 8K72 (no. B1-4)
Launch Site: NIIP-5 / launch site 1
Spacecraft Mass: c. 360 kg (with upper stage)
Spacecraft Instruments: 1) three-component magnetometer; 2) two gas-discharge counters; 3) piezoelectric detector; 4) scintillation counter and 5) ion traps
Deep Space Chronicle: A Chronology of Deep Space and Planetary Probes 1958-2000, Monographs in Aerospace History No. 24, by Asif A. Siddiqi

National Space Science Data Center,

The second attempt to impact the Moon failed when, again, the probe never left Earth's atmosphere. The launch vehicle exploded at T+104 seconds due to longitudinal resonant vibrations in the strap-on boosters.

Key Dates
11 Oct 1958:  Launch (23:41:58 UT)
Status: Unsuccessful
Fast Facts
Ye-1/2 Facts This second Soviet Moon mission was launched about 15 hours after America's second Moon launch -- Pioneer 1/Able 2.

None of the seven lunar missions launched in 1958 by both nations reached their destination.
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Last Updated: 2 Dec 2010