Earth Radiation Budget Satellite

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Earth Radiation Budget Satellite
The ERBS spacecraft
Mission type Earth observation
Operator NASA
COSPAR ID 1984-108B
SATCAT no. 15354
Mission duration Planned: 2 years
Final: 21 years, 8 days
Spacecraft properties
Manufacturer Ball Aerospace
Launch mass 2,307 kg (5,086 lb)
Dimensions 4.6 × 3.5 × 1.5 m (15.1 × 11.5 × 4.9 ft)
Power 470 watts
Start of mission
Launch date 5 October 1984, 22:18 (1984-10-05UTC22:18) UTC
Rocket Space Shuttle Challenger (STS-41-G)
Launch site Kennedy LC-39A
End of mission
Disposal Decommissioned
Deactivated 14 October 2005 (2005-10-15)
Orbital parameters
Reference system Geocentric
Regime Low Earth
Eccentricity 0.00194
Perigee 572 km (355 mi)
Apogee 599 km (372 mi)
Inclination 56.9 deg
Period 96.4 min
Epoch 5 October 1984[1]

The Earth Radiation Budget Satellite (ERBS) was a NASA scientific research satellite launched on October 5, 1984, to study the Earth's radiation budget and stratospheric aerosol and gases. It was carried into low Earth orbit and deployed by the Space Shuttle Challenger during the STS-41-G mission. The spacecraft was expected to have a two-year operation life, but ultimately, the mission provided scientific data about the Earth's ozone layer for more than two decades.

ERBS during deployment on STS-41-G

Data on the ozone layer provided by ERBS was key in the international community's decision-making process during the Montreal Protocol Agreement, which has resulted in a near elimination of CFCs in industrialized countries.

ERBS was one of three satellites in the Earth Radiation Budget Experiment and carried two instruments as part of that endeavor: the ERBE scanner (three detectors that study longwave radiation, shortwave radiation and total energy radiating from the Earth along a line of the satellite's path) and the ERBE non-scanner (five detectors measuring the total energy from the Sun, and the shortwave and total energy from the entire Earth disk and the area beneath the satellite). The second ERBE Instrument was aboard the NOAA-9 satellite when it was launched in January 1985, and the third was aboard the NOAA-10 satellite when it was launched in October 1986.

In addition, it carried the Stratospheric Aerosol and Gas Experiment (SAGE II).

It was retired for budgetary reasons on October 14, 2005, as one of the longest-running spacecraft missions to date.

See also[edit]


  1. ^ "Trajectory Details: ERBS". National Space Science Data Center. NASA. Retrieved 5 December 2016. 

External links[edit]