Engineering:TIROS-7
 TIROS-7 satellite. | |
| Mission type | Weather satellite |
|---|---|
| Operator | NASA |
| COSPAR ID | 1963-024A |
| SATCAT no. | 604 |
| Spacecraft properties | |
| Spacecraft type | TIROS |
| Manufacturer | RCA / GSFC |
| Launch mass | 134.7 kilograms (297 lb)[1] |
| Dimensions | 1.07 m × 0.56 m (3.5 ft × 1.8 ft) |
| Start of mission | |
| Launch date | June 19, 1963, 09:50 UTC[2] |
| Rocket | Thor-Delta B 359/D-19 |
| Launch site | Cape Canaveral Air Force Station LC-17B |
| End of mission | |
| Last contact | June 3, 1968 |
| Decay date | June 3, 1994 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Eccentricity | 0.001995[1] |
| Perigee altitude | 621 kilometers (386 mi)[1] |
| Apogee altitude | 649 kilometers (403 mi)[1] |
| Inclination | 58.23°[1] |
| Period | 97.40 minutes[1] |
| Epoch | June 19, 1963[1] |
| Instruments | |
| Low Resolution Omnidirectional Radiometer Scanning Radiometer Langmuir probe Television Camera System | |
TIROS | |
TIROS-7 (also called TIROS-G or A-52) was a spin-stabilized meteorological satellite. It was the seventh in a series of Television Infrared Observation Satellites.
Launch
TIROS-7 was launched on June 19, 1963, by a Thor-Delta rocket from Cape Canaveral Air Force Station , Florida, United States . The spacecraft functioned nominally until June 3, 1968. It reentered the atmosphere after exactly 26 years on June 3, 1994. The satellite orbited the Earth once every 1 hour and 37 minutes, at an inclination of 58.2°. Its perigee was 621 kilometers (386 mi) and apogee was 649 kilometers (403 mi).[1]
Mission
TIROS 7 was a spin-stabilized meteorological spacecraft designed to test experimental television techniques and infrared equipment. The satellite was in the form of an 18-sided right prism, 107 cm in diameter and 56 cm high. The top and sides of the spacecraft were covered with approximately 9000 1-by 2-cm silicon solar cells. It was equipped with 2 independent television camera subsystems for taking cloudcover pictures, plus an omnidirectional radiometer and a five-channel scanning radiometer for measuring radiation from the earth and its atmosphere. The satellite spin rate was maintained between 8 and 12 rpm by use of five diametrically opposed pairs of small, solid-fuel thrusters.
A magnetic attitude control device permitted the satellite spin axis to be oriented to within 1 to 2 deg of a predetermined attitude. The flight control system also optimized the performance of the solar cells and TV cameras and protected the five-channel infrared radiometer from prolonged exposure to direct sunlight. The spacecraft performed normally until December 31, 1965, and sporadically until February 3, 1967. TIROS-7 was operated for an additional 1.5 years to collect engineering data. It was deactivated on June 3, 1968.[3]
On June 3, 1994, it was destroyed by being incinerated in the Earth's atmosphere.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "TIROS 6". National Space Science Data Center Master Catalog. NASA Goddard Space Flight Center. https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1962-047A. Retrieved June 4, 2018.
This article incorporates text from this source, which is in the public domain.
- ↑ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. http://planet4589.org/space/log/launchlog.txt. Retrieved June 4, 2018.
- ↑ "TIROS 7 (1963-024A)". NASA Goddard Space Flight Center. https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1963-024A. Retrieved June 4, 2018.
External links
- TIROS-7 - N2YO.com
- TIROS. science.nasa.gov
- Technical Summary of Polar Meteorological Satellites. (PDF)
TIROS satellites | ||
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| TIROS |  | |
| TOS | ||
| ITOS | ||
| TIROS-N | ||
| Adv. TIROS-N | ||
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