|
gptkbp:instance_of
|
gptkb:space_mission
|
|
gptkbp:analysis
|
conducted by NASA and academic institutions
|
|
gptkbp:archives
|
NASA archives
|
|
gptkbp:collaboration
|
gptkb:none
|
|
gptkbp:collaborations
|
NASA and universities
|
|
gptkbp:collaborator
|
gptkb:University_of_California,_Berkeley
|
|
gptkbp:collection
|
1963-1964
|
|
gptkbp:community
|
space scientists
|
|
gptkbp:contribution
|
improved understanding of Van Allen radiation belts
|
|
gptkbp:data_return
|
gptkb:significant
|
|
gptkbp:data_transmission
|
telemetry
|
|
gptkbp:data_type
|
analog and digital
radiation measurements
|
|
gptkbp:data_usage
|
used in various scientific studies
|
|
gptkbp:decommissioned
|
gptkb:1964
|
|
gptkbp:design
|
gptkb:NASA
|
|
gptkbp:funding
|
NASA budget
|
|
gptkbp:historical_legacy
|
contributed to space weather research
|
|
gptkbp:home_ground
|
gptkb:NASA_Goddard_Space_Flight_Center
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Explorer 18
|
|
gptkbp:impact
|
high
|
|
gptkbp:innovation
|
new detection methods
|
|
gptkbp:is_aplace_for
|
approximately 1,000 km
|
|
gptkbp:is_considered
|
peer-reviewed process
|
|
gptkbp:launch_date
|
gptkb:1963
1963-12-07
|
|
gptkbp:launch_mass
|
approximately 50 kg
|
|
gptkbp:launch_site
|
gptkb:Cape_Canaveral_Air_Force_Station
|
|
gptkbp:launch_vehicle
|
gptkb:Juno_II
|
|
gptkbp:launched
|
gptkb:Launch_Complex_26
|
|
gptkbp:mission
|
operational
Earth science
1964-01-01
completed
successful
NASA archives
post-mission analysis
technical difficulties
part of the Explorer program
|
|
gptkbp:mission_duration
|
approximately 1 year
|
|
gptkbp:mission_type
|
gptkb:scientific_research
|
|
gptkbp:notable_mission
|
ongoing space exploration efforts
pioneering radiation research
|
|
gptkbp:objective
|
study Earth's radiation belts
|
|
gptkbp:operator
|
gptkb:NASA
|
|
gptkbp:orbit_type
|
low Earth orbit
|
|
gptkbp:orbital_inclination
|
30 degrees
|
|
gptkbp:orbital_period
|
approximately 90 minutes
eventually re-entered atmosphere
|
|
gptkbp:payload_capacity
|
gptkb:cosmic_ray_detector
|
|
gptkbp:perigee
|
approximately 300 km
|
|
gptkbp:provides_information_on
|
with international scientific community
|
|
gptkbp:publications
|
multiple peer-reviewed articles
|
|
gptkbp:replaced_by
|
gptkb:Explorer_19
|
|
gptkbp:research_output
|
enhanced models of radiation belts
|
|
gptkbp:scientific_goals
|
measure cosmic rays and magnetic fields
|
|
gptkbp:scientific_instruments
|
gptkb:magnetometer
|
|
gptkbp:storage
|
onboard tape recorder
|
|
gptkbp:successor
|
gptkb:Explorer_19
|
|
gptkbp:bfsParent
|
gptkb:Explorer_1
|
|
gptkbp:bfsLayer
|
4
|