Statements (24)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:satellite | 
| gptkbp:alsoKnownAs | gptkb:Explorer_1 | 
| gptkbp:apogee | 2550 km | 
| gptkbp:COSPAR_ID | gptkb:1958-005A | 
| gptkbp:countryOfOrigin | gptkb:United_States | 
| gptkbp:decayDate | 1970-03-31 | 
| gptkbp:discoveredBy | gptkb:James_Van_Allen | 
| gptkbp:firstUSSatellite | true | 
| gptkbp:inclination | 33.24 degrees | 
| gptkbp:launchDate | 1958-01-31 | 
| gptkbp:launchSite | gptkb:Cape_Canaveral_LC-26A | 
| gptkbp:launchVehicle | gptkb:Juno_I | 
| gptkbp:mass | 13.97 kg | 
| gptkbp:missionType | gptkb:scientific_research | 
| gptkbp:notableFinds | gptkb:Van_Allen_radiation_belts | 
| gptkbp:operator | gptkb:NASA | 
| gptkbp:orbitalStatus | decayed | 
| gptkbp:orbitType | gptkb:Low_Earth_Orbit 114.8 minutes | 
| gptkbp:perihelion | 358 km | 
| gptkbp:purpose | study Earth's radiation belts | 
| gptkbp:bfsParent | gptkb:Explorer_4 | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | 1958-005A |