ESSA-2

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ESSA-2
ESSA 2 TIROS.jpg
ESSA 2
Mission type Weather satellite
Operator ESSA/NASA
COSPAR ID 1966-016A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 2091
Spacecraft properties
Manufacturer RCA Astro
Launch mass286 kilograms (631 lb) [1]
Start of mission
Launch dateFebruary 3, 1966, 13:55 (1966-02-03UTC13:55Z) UTC [2]
Rocket Delta E
Launch site Cape Canaveral LC-17B
End of mission
DisposalDecommissioned
DeactivatedOctober 16, 1970 (1970-10-17)
Orbital parameters
Reference system Geocentric
Regime Low Earth
Semi-major axis 7,115.60 kilometers (4,421.43 mi)
Eccentricity 0.00399
Perigee altitude 1,355 kilometers (842 mi)
Apogee altitude 1,415 kilometers (879 mi)
Inclination 101.3°
Period 113.5 minutes
Epoch February 28, 1966
TOS
  ESSA-1
ESSA-3  

ESSA-2 (or OT-2 ) was a spin-stabilized operational meteorological satellite. Its name was derived from that of its oversight agency, the Environmental Science Services Administration (ESSA).

Contents

Launch

Launch of ESSA-2. Delta 37 with ESSA II Spac0023.jpg
Launch of ESSA-2.

ESSA-2 was launched on February 28, 1966, at 13:55 UTC. It was launched atop a Delta rocket from Cape Canaveral, Florida. The spacecraft had a mass of 132 kilograms (291 lb) at the time of launch. ESSA-2 had an inclination of 101.3°, and an orbited the Earth once every 113 minutes. Its perigee was 1,355 kilometers (842 mi) and its apogee was 1,455 kilometers (904 mi).

Mission

ESSA-2 was a Sun-synchronous polar-orbiting weather satellite whose mission was to provide real-time pictures of cloud cover using the automatic picture transmission system. These cloud cover pictures were used by meteorologists for use in weather forecasting and analysis. The satellite provided useful cloud pictures for more than four years before the camera systems were placed in standby mode on March 20, 1970. ESSA-2 was fully deactivated on October 16, 1970. [1]

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References

  1. 1 2 "ESSA 2". National Space Science Data Center. Retrieved June 4, 2018.
  2. McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved June 4, 2018.

PD-icon.svg This article incorporates public domain material from ESSA 2. National Aeronautics and Space Administration . Retrieved June 4, 2018.