International Sun-Earth Explorer 3

URI: https://gptkb.org/entity/International_Sun-Earth_Explorer_3
GPTKB entity
Statements (37)
Predicate Object
gptkbp:instanceOf gptkb:satellite
gptkbp:alsoKnownAs gptkb:International_Cometary_Explorer
gptkb:ISEE-3
gptkbp:cometEncounterDate 1985-09-11
gptkbp:cometEncountered gptkb:21P/Giacobini–Zinner
gptkbp:contactLost 1997
gptkbp:contactLostAgain 2014
gptkbp:contactRestored 2014
gptkbp:countryOfOrigin gptkb:United_States
gptkbp:distanceFromEarth varies (heliocentric orbit)
gptkbp:heliocentricOrbit yes
https://www.w3.org/2000/01/rdf-schema#label International Sun-Earth Explorer 3
gptkbp:launchDate 1978-08-12
gptkbp:launchSite gptkb:Cape_Canaveral_LC-17A
gptkbp:launchVehicle gptkb:Delta_2914
gptkbp:manufacturer gptkb:NASA_Goddard_Space_Flight_Center
gptkbp:mass 390 kg
gptkbp:missionType heliophysics
comet flyby
gptkbp:notableAchievement first spacecraft to be repurposed for a new mission after original mission ended
first spacecraft to use lunar gravity assist to change orbit
gptkbp:notableEvent first spacecraft to encounter a comet
gptkbp:operator gptkb:NASA
gptkbp:orbitType heliocentric
gptkbp:originalMissionEnd 1982
gptkbp:powers 173 watts
gptkbp:program gptkb:International_Sun-Earth_Explorer_program
gptkbp:purpose study Earth's magnetosphere
study solar wind
comet encounter
gptkbp:relatedTo gptkb:ISEE-1
gptkb:ISEE-2
gptkbp:repurposedAs gptkb:International_Cometary_Explorer
gptkbp:status inactive
gptkbp:website https://www.nasa.gov/mission_pages/isee/main/index.html
gptkbp:bfsParent gptkb:ISEE-3_satellite
gptkbp:bfsLayer 6