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Sensor Group, Flight Control

National Air and Space Museum

Object Details

Manufacturer
Hughes Aircraft Co.
Summary
This is a flight spare flight control sensor assembly from the Surveyor soft-landing program to the Moon in the 1960s. Although not flown to the Moon, it is identical to those on the five Surveyor spacecraft that successfully reached the Moon during the period from May 30, 1966 to January 9, 1968. The spacecraft was three-axis stabilized during cruise via such sensors such as this, using the Sun and the star Canopus as attitude references, and a cold-gas reaction control system for attitude control. By using two sun sensors and a Canopus star sensor in this assembly, the spacecraft could be navigated to the Moon.
The overall objectives of the Surveyor program were to accomplish soft landings on the Moon, obtain data concerning temperature, chemical composition, and load-bearing characteristics of the lunar soil in support of the Apollo program, televise high quality photographs of the lunar surface, and perform operations on the lunar surface that would contribute new scientific knowledge about the Moon.
The Hughes Aircraft Company donated this to the Museum in 1973.
Long Description
Surveyor (1966-1968)
The Surveyor probes were the first U.S. spacecraft to land safely on the Moon. The main objectives of the Surveyors were to obtain close-up images of the lunar surface and to determine if the terrain was safe for manned landings. Each Surveyor was equipped with a television camera. In addition, Surveyors 3 and 7 each carried a soil mechanics surface sampler scoop which dug trenches and was used for soil mechanics tests and Surveyors 5, 6, and 7 had magnets attached to the footpads and an alpha scattering instrument for chemical analysis of the lunar material. The following Surveyor missions took place.
Surveyor 1
Launched 30 May 1966
Landed 02 June 1966, 06:17:37 UT
Latitude 2.45 S, Longitude 316.79 E - Flamsteed P
Surveyor 2
Launched 20 September 1966
Crashed on Moon 22 September 1966
Vernier engine failed to ignite - southeast of Copernicus Crater
Surveyor 3
Launched 17 April 1967
Landed 20 April 1967, 00:04:53 UT
Latitude 2.94 S, Longitude 336.66 E - Oceanus Procellarum (Ocean of Storms)
Surveyor 4
Launched 14 July 1967
Radio contact lost 17 July 1967
2.5 minutes from touchdown - Sinus Medii
Surveyor 5
Launched 08 September 1967
Landed 11 September 1967, 00:46:44 UT
Latitude 1.41 N, Longitude 23.18 E - Mare Tranquillitatus (Sea of Tranquility)
Surveyor 6
Launched 07 November 1967
Landed 10 November 1967, 01:01:06 UT
Latitude 0.46 N, Longitude 358.63 E - Sinus Medii
Surveyor 7
Launched 07 January 1968
Landed 10 January 1968, 01:05:36 UT
Latitude 41.01 S, Longitude 348.59 E - Tycho North Rim
Credit Line
Gift of Hughes Aircraft Co.
Inventory Number
A19731145000
Restrictions & Rights
Usage conditions apply
Type
SPACECRAFT-Uncrewed-Guidance & Control
Materials
HAZMAT: Magnesium
Plastic, Aluminum, Mylar (Polyester), Adhesive, Paint, Gold Plating, Acrylic (Plexiglas), Epoxy
Dimensions
3-D: 30.5 x 33 x 30.5cm (12 x 13 x 12 in.)
Country of Origin
United States of America
See more items in
National Air and Space Museum Collection
National Air and Space Museum
Record ID
nasm_A19731145000
Metadata Usage (text)
Not determined
GUID (Link to Original Record)
http://n2t.net/ark:/65665/nv997db7824-75f8-4cd4-b9dd-fcacd7b413be

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