Statements (26)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:satellite gptkb:astronomer | 
| gptkbp:catalogueNumber | gptkb:1977-075A | 
| gptkbp:countryOfOrigin | gptkb:United_States | 
| gptkbp:decommissioned | 1979-01-09 | 
| gptkbp:duration | 18 months | 
| gptkbp:inclination | 22.7 degrees | 
| gptkbp:instrument | A-1 Large Area Sky Survey Experiment A-2 Cosmic X-ray Experiment A-3 Modulation Collimator X-ray Experiment A-4 Hard X-ray/Low Energy Gamma-ray Experiment | 
| gptkbp:launchDate | 1977-08-12 | 
| gptkbp:launchSite | gptkb:Cape_Canaveral_LC-36B | 
| gptkbp:launchVehicle | gptkb:Atlas-Centaur | 
| gptkbp:mass | 2700 kg | 
| gptkbp:missionType | X-ray astronomy gamma-ray astronomy | 
| gptkbp:officialName | gptkb:High_Energy_Astronomy_Observatory_1 | 
| gptkbp:operator | gptkb:NASA | 
| gptkbp:orbitType | gptkb:Low_Earth_Orbit | 
| gptkbp:partOf | HEAO program | 
| gptkbp:purpose | survey the sky for X-ray and gamma-ray sources | 
| gptkbp:successor | HEAO 2 satellite | 
| gptkbp:bfsParent | gptkb:C_1122-615 | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | HEAO 1 satellite |