DODGE

Summary

DODGE (Department of Defense Gravity Experiment) was a satellite whose primary purpose was to conduct experiments in gravity-gradient stabilization at near-geosynchronous altitudes. Its secondary objectives included measuring the Earth's magnetic field, and taking pictures of the entire Earth's disk in both black-and-white and color. It was launched atop a Titan IIIC rocket on July 1, 1967, and operated for over three years. DODGE carried ten knobbed booms oriented along three different axes, that could be independently extended and retracted by ground command.[1]

DODGE
Dodge satellite.jpg
The DODGE satellite
Mission typeTechnology
OperatorNASA / USAF
COSPAR ID1967-066F Edit this at Wikidata
SATCAT no.2867
Mission duration3 years
Spacecraft properties
ManufacturerJohns Hopkins University
Applied Physics Laboratory
Launch mass200 kilograms (430 lb)
Dimensions2.4 by 1.2 metres (7.9 by 4.0 ft)
Start of mission
Launch dateJuly 1, 1967, 13:15:01 (1967-07-01UTC13:15:01Z) UTC
RocketTitan IIIC
Launch siteCape Canaveral LC-41
Orbital parameters
Reference systemGeocentric
RegimeMEO
Semi-major axis39,841.6 kilometres (24,756.4 mi)
Perigee altitude33,278.8 kilometres (20,678.5 mi)
Apogee altitude33,662.5 kilometres (20,916.9 mi)
Inclination11.6 degrees
 

DODGE first achieved successful stabilization 12 days after launch.[1] It took in 1967 color-filtered black-and-white images, which put together produced the very first color image of the full-disk Earth (ATS-3 often also cited, produced the first non-black-and-white filtered "true-color" image)[2].

The first color image of the entire Earth, taken by the DODGE satellite

See alsoEdit

ReferencesEdit

  1. ^ a b Gunter's Space Page: DODGE
  2. ^ Miller, Steven D.; Schmit, Timothy L.; Seaman, Curtis J.; Lindsey, Daniel T.; Gunshor, Mathew M.; Kohrs, Richard A.; Sumida, Yasuhiko; Hillger, Donald (Oct 1, 2016). "A Sight for Sore Eyes: The Return of True Color to Geostationary Satellites". Bulletin of the American Meteorological Society. American Meteorological Society. 97 (10): 1803–1816. doi:10.1175/bams-d-15-00154.1. ISSN 0003-0007.

See alsoEdit