NOAA-4

NOAA-4

Illustration of an ITOS series satellite
Mission type Weather
Operator NOAA/NASA
COSPAR ID 1974-089A[1]
SATCAT no. 7529
Mission duration 4 years
Spacecraft properties
Launch mass 339.7 kilograms (749 lb)
Start of mission
Launch date 15 November 1974, 17:11:00 (1974-11-15UTC17:11Z) UTC[2]
Rocket Delta 2310 D104
Launch site Vandenberg SLC-2W
End of mission
Disposal Decommissioned
Deactivated 18 November 1978 (1978-11-19)
Orbital parameters
Reference system Geocentric
Regime Sun-synchronous
Perigee 1,451 kilometers (902 mi)
Apogee 1,465 kilometers (910 mi)
Inclination 101.46 degrees
Period 114.91 minutes
Epoch 8 December 2013, 12:44:30 UTC[3]
Instruments
VHRR, VTPR, SR

NOAA-4, also known as ITOS-G was a weather satellite operated by the National Oceanic and Atmospheric Administration (NOAA). It was part of a series of satellites called ITOS, or improved TIROS.[4] NOAA-4 was launched on a Delta rocket on 15 November 1974. The launch carried two other satellites: AMSAT-OSCAR 7 and Intasat.[2] It remained operational for 1463 days until it was deactivated by NOAA on 18 November 1978.

References

  1. ↑ "NASA/NSSDC NOAA-4 spacecraft details". Retrieved 2008-10-20.
  2. 1 2 McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 8 December 2013.
  3. ↑ "NOAA 4 Satellite details 1974-089A NORAD 7529". N2YO. 8 December 2013. Retrieved 8 December 2013.
  4. ↑ Wade, Mark. "ITOS". Encyclopedia Astronautica. Retrieved 2008-10-20.
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