PAM-D stage failed to provide required velocity
E673867
The PAM-D stage failed to provide required velocity refers to the malfunction of the Payload Assist Module-D upper stage that left the Westar 6 communications satellite in an incorrect orbit.
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
launch vehicle upper stage anomaly
ⓘ
spaceflight mission failure event ⓘ |
| affected | Westar 6 communications satellite NERFINISHED ⓘ |
| associatedWith | McDonnell Douglas (PAM-D manufacturer) NERFINISHED ⓘ |
| category |
spacecraft deployment anomaly
ⓘ
upper stage propulsion failure ⓘ |
| caused | insertion of Westar 6 into incorrect orbit ⓘ |
| causeOf | insurance claim for Westar 6 ⓘ |
| consequence | need for satellite retrieval mission ⓘ |
| failureOutcome | Westar 6 not reaching planned geostationary orbit by itself NERFINISHED ⓘ |
| failureType | underperformance of solid-propellant upper stage ⓘ |
| hasConsequence |
need for complex on-orbit rendezvous and capture operations
ⓘ
reputation impact for PAM-D upper stage reliability ⓘ |
| impact |
demonstration of on-orbit satellite retrieval capability
ⓘ
financial loss risk for satellite operator ⓘ |
| involves |
Payload Assist Module-D
NERFINISHED
ⓘ
Space Shuttle mission STS-41B NERFINISHED ⓘ Westar 6 NERFINISHED ⓘ |
| launchProvider | NASA Space Shuttle program NERFINISHED ⓘ |
| ledTo | planning of satellite retrieval on STS-51A ⓘ |
| location | low Earth orbit ⓘ |
| missionDesignation | Westar 6 deployment mission ⓘ |
| occurredDuring | STS-41B NERFINISHED ⓘ |
| occurredOn | 1984-02-03 ⓘ |
| operator | NASA ⓘ |
| orbitAchieved | lower-than-planned elliptical orbit ⓘ |
| orbitIntended | geostationary transfer orbit ⓘ |
| partOf | history of Space Shuttle satellite deployment missions ⓘ |
| payloadName | Westar 6 NERFINISHED ⓘ |
| payloadOwner | Western Union NERFINISHED ⓘ |
| payloadType | communications satellite ⓘ |
| relatedEvent | retrieval of Westar 6 by Space Shuttle mission STS-51A ⓘ |
| relatedProgram | Space Shuttle commercial satellite deployment program ⓘ |
| relatedTo | PAM-D stage failure on Palapa B2 ⓘ |
| relatedVehicle | PAM-D solid rocket motor NERFINISHED ⓘ |
| resultedIn | stranded Westar 6 in lower-than-planned orbit ⓘ |
| usedUpperStage | PAM-D NERFINISHED ⓘ |
| usedVehicle | Space Shuttle Challenger NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.