Luna 9
Luna 9, also known as Lunik 9, was an
unmanned space mission of the
Soviet Union's
Luna program. On February 3, 1966 the Luna 9 spacecraft was the first spacecraft to achieve a
lunar soft landing and to transmit photographic data to
Earth.
The automatic lunar station that achieved the soft landing weighed 99
kg. It was a hermetically sealed container with radio equipment, a program timing device, heat control systems, scientific apparatus, power sources, and a television system. The Luna 9 payload was carried to Earth orbit by an A-2-E vehicle and then conveyed toward the
Moon by a fourth stage rocket that separated itself from the payload.
Encyclopedia
Luna 9
|
| Organization: | Soviet Union |
| Major Contractors: | GSMZ Lavochkin |
| Mission Type: | Planetary Science Lunar landing |
| Satellite of: | Moon |
| Launch: | January 31, 1966. 11:45:00 UTC |
| Launch Vehicle: | Molniya 8K78M |
| Mission Highlight: | Lunar soft landing on
February 3, 1966, 18:44:52 UTC
7.13° N - 64.37° W. |
| Mission Duration: | 6-days. Last transmission
February 6, 1966, 22:55 UTC. |
| Mass: | 1.580 kg |
| NSSDC ID: | 1966-006A |
| Webpage: | |
| Orbital elements |
|---|
| Semimajor Axis: | n/a |
| Eccentricity: | n/a |
| Inclination: | n/a |
| Orbital Period: | n/a |
| Aposelene: | n/a |
| Periselene: | n/a |
| Orbits: | Lunar soft landing |
| Instruments |
|---|
| Close-Up Lunar Surface Photography : | Lunar photography |
|
Luna 9, also known as
Lunik 9, was an
unmanned space mission of the
Soviet Union's
Luna program. On February 3, 1966 the Luna 9 spacecraft was the first spacecraft to achieve a
lunar soft landing and to transmit photographic data to
Earth.
The automatic lunar station that achieved the soft landing weighed 99
kg. It was a hermetically sealed container with radio equipment, a program timing device, heat control systems, scientific apparatus, power sources, and a television system. The Luna 9 payload was carried to Earth orbit by an A-2-E vehicle and then conveyed toward the
Moon by a fourth stage rocket that separated itself from the payload. Flight apparatus separated from the payload shortly before Luna 9 landed.
After landing in the
Ocean of Storms on February 3, 1966, the four petals, which formed the spacecraft, opened outward and stabilized the spacecraft on the lunar surface. Spring-controlled antennas assumed operating positions, and the television camera rotating mirror system, which operated by revolving and tilting, began a photographic survey of the lunar environment. Seven radio sessions, totaling 8 hours and 5 minutes, were transmitted as were three series of TV pictures.
When assembled, the photographs provided a panoramic view of the nearby lunar surface. The pictures included views of nearby rocks and of the horizon 1.4 km away from the spacecraft.
With this mission, the Soviets accomplished another spectacular first in the space race, the first survivable landing of a humanmade object on another celestial body. Luna 9 was the twelfth attempt at a soft-landing by the Soviets; it was also the first deep space probe built by the Lavochkin design bureau, which ultimately would design and build almost all Soviet lunar and interplanetary spacecraft. All operations prior to landing occurred without fault, and the 58-centimeter spheroid ALS capsule landed on the Moon at 18:45:30 UT on 3 February 1966 west of the Reiner and Marius craters in the Ocean of Storms . Approximately 5 minutes after touchdown, Luna 9 began transmitting data to Earth, but it was 7 hours before the probe began sending the first of nine images of the surface of the Moon.
These were the first images sent from the surface of another planetary body.
The radiation detector, the only scientific instrument on board, measured a dosage of 30 millirads per day. Perhaps the most important discovery of the mission was determining that a foreign object would not simply sink into the lunar dust, that is, that the ground could support a heavy lander. Last contact with the spacecraft was at 22:55 UT on 6 February 1966.
- Launch date/time: 1966-01-31 at 11:45:00 UTC
- In-orbit dry mass: 1580 kg
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