Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:satellite
|
| gptkbp:bfsLayer |
5
|
| gptkbp:bfsParent |
gptkb:Explorer_I
|
| gptkbp:data_type |
cosmic rays
|
| gptkbp:decommissioned |
gptkb:1965
|
| https://www.w3.org/2000/01/rdf-schema#label |
Explorer IV
|
| gptkbp:launch_date |
1964-07-12
|
| gptkbp:launch_site |
gptkb:cape
|
| gptkbp:launch_vehicle |
gptkb:Juno_II
|
| gptkbp:manufacturer |
gptkb:NASA
|
| gptkbp:mass |
18.5 kg
|
| gptkbp:mission |
low Earth orbit
scientific |
| gptkbp:mission_duration |
1 year
|
| gptkbp:orbital_period |
90 minutes
|
| gptkbp:recognizes |
1964-053 A
|
| gptkbp:replaced_by |
gptkb:Explorer_10
|
| gptkbp:scientific_goals |
study radiation belts
|
| gptkbp:services |
first satellite to measure cosmic rays
|
| gptkbp:successor |
gptkb:Explorer_10
|