Mission type | Weather |
---|---|
Operator | NASA |
COSPAR ID | 1967-006A |
SATCAT no. | S02657 |
Spacecraft properties | |
Launch mass | 290 kg (640 lb) |
Start of mission | |
Launch date | 21 January 1967, 17:31 GMT |
Rocket | Thor-Delta E |
Launch site | Vandenberg Space Launch Complex 2 |
Entered service | 21 January 1967 |
End of mission | |
Deactivated | 5 May 1968 |
Orbital parameters | |
Reference system | Geocentric orbit |
Regime | Low Earth orbit |
Eccentricity | 0.00740 |
Perigee altitude | 1,338 km (831 mi) |
Apogee altitude | 1,443 km (897 mi) |
Inclination | 102° |
Period | 113.48 minutes |
ESSA program |
ESSA-4 (or TOS-B ) was a spin-stabilized operational meteorological satellite. Its name was derived from that of its oversight agency, the Environmental Science Services Administration (ESSA).
ESSA 4 was launched to replace ESSA 2, launched February 3, 1966, which had drifted into an orbit of limited usefulness. The satellite was financed, managed, and operated by the Environmental Science Services Administration (ESSA). [1]
The 290 lb (130 kg) cartwheel-shaped spacecraft carried two Automatic Picture Transmission (APT) systems, with which it could instantly transmit photos of Earth's cloudcover to APT ground stations. [1]
ESSA-4 was launched on January 26, 1967, at 17:31 UTC. It was launched atop a Delta rocket from Vandenberg Space Launch Complex 2, [2] into Sun-synchronous orbit. ESSA-4 had an inclination of 102°, and an orbited the Earth once every 113.4 minutes. Its perigee was 1,328 kilometers (825 mi) and its apogee was 1,443 kilometers (897 mi).
The satellite properly aligned itself with respect to the Earth during its 18th orbit, whereupon its first photos were transmitted. A two-week spacecraft checkout and evaluation program ensued. [1] One of the APTs failed after launch, but the other performed normally. [3]
ESSA 4 was turned operationally off on December 6, 1967, being finally deactivated on May 5, 1968. [3]
The 1966 Lunar Orbiter 1 robotic spacecraft mission, part of NASA's Lunar Orbiter program, was the first American spacecraft to orbit the Moon. It was designed primarily to photograph smooth areas of the lunar surface for selection and verification of safe landing sites for the Surveyor and Apollo missions. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data.
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Landsat 1 (LS-1), formerly named ERTS-A and ERTS-1, was the first satellite of the United States' Landsat program. It was a modified version of the Nimbus 4 meteorological satellite and was launched on July 23, 1972, by a Delta 900 rocket from Vandenberg Air Force Base in California.
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The Environmental Science Services Administration (ESSA) was a United States Federal executive agency created in 1965 as part of a reorganization of the United States Department of Commerce. Its mission was to unify and oversee the meteorological, climatological, hydrographic, and geodetic operations of the United States. It operated until 1970, when it was replaced by the new National Oceanic and Atmospheric Administration (NOAA).
ESSA-1 was a spin-stabilized operational meteorological satellite. Its name was derived from that of its oversight agency, the Environmental Science Services Administration (ESSA).
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Intelsat II F-2, also known as Lani Bird, was a communications satellite operated by Intelsat. Launched in 1967, it was operated in geostationary orbit at a longitude of 174 degrees east until 1969.
Intelsat II F-4 was a communications satellite operated by Intelsat. Launched in 1967 it was operated in geostationary orbit at a longitude of 176 degrees east and later 166 degrees west.
Kosmos 144, was launched on 28 February 1967, Meteor No.6L, and was one of eleven weather satellites launched by the Soviet Union between 1964 and 1969. Kosmos 144 was the second announced Russian meteorological satellite and the first interim operational weather satellite in the experimental Kosmos satellite 'Meteor' system. It was also the first launch of the semi-operational weather satellite from the Plesetsk site into a near-polar, near-circular orbit. Unlike U.S. weather satellites, however, the orbit was prograde because, as a result of geographic limitations, a retrograde orbit was not possible. Kosmos 144 was orbited to test, in a semi-operational mode, meteorological instruments designed for obtaining images of cloud cover, snow cover, and ice fields on the day and night sides of the Earth and for measuring fluxes of outgoing radiation reflected and radiated by the Earth-atmosphere system.
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TIROS-8 was a spin-stabilized meteorological satellite. It was the eighth in a series of Television Infrared Observation Satellites.
TIROS-10 was a spin-stabilized meteorological satellite. It was the tenth and last in a series of Television Infrared Observation Satellites.
ESSA-2 was a spin-stabilized operational meteorological satellite. Its name was derived from that of its oversight agency, the Environmental Science Services Administration (ESSA).
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