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Kosmos 111
Kosmos 111 Mission to Earth's Moon

Mission Type: Orbiter
Launch Vehicle: 8K78M (no. N103-41)
Launch Site: NIIP-5 / launch site 31
Spacecraft Mass: about 1,580 kg (lunar module: 245 kg)
Spacecraft Instruments: 1) magnetometer; 2) gamma-ray spectrometer; 3) five gas-discharge counters; 4) two ion traps and a charged-particle trap; 5) piezoelectric micrometer detector; 6) infrared detector; and 7) low-energy x-ray photon counters
Spacecraft Dimensions: lunar module: 1.5 meters tall, 75 cm diameter at the base
Spacecraft Power: Battery
Deep Space Chronicle: A Chronology of Deep Space and Planetary Probes 1958-2000, Monographs in Aerospace History No. 24, by Asif A. Siddiqi

Solar System Log by Andrew Wilson, published 1987 by Jane's Publishing Co. Ltd.

In early 1966, the Soviets began hastily putting together an interim lunar orbiter program, the Ye-6S, partly to upstage the American Lunar Orbiter project and partly to commemorate the 23rd Congress of the Communist Party held in March 1966.

Engineers quickly designed a set of two rudimentary probes using the old Ye-6 (lander) buses for these missions. The first of them was prepared in less than a month but failed to leave Earth orbit.

During Earth-orbit operations, the Blok L upper stage lost roll control and failed to fire to send the probe towards the Moon. The official Soviet media named the stranded satellite Kosmos 111; it re-entered Earth's atmosphere two days after launch.

Key Dates
1 Mar 1966:  Launch
1 Mar 1966:  Burned up in Earth's atmosphere
Status: Unsuccessful
Fast Facts
Kosmos 111 Facts Beginning in 1963, the name Kosmos was given to Soviet spacecraft which remained in Earth orbit, regardless of whether that was its intended final destination.

The probe was intended to mark Leonid Brezhnev's first Congress as leader of the Soviet Union's party and state.
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Last Updated: 29 Nov 2010