Rationale: Defines a verifiable (testable) limit for off-nominal input voltage testing of an instrument. Mechanical Guidelines Assumptions The HPIG mechanical guidelines assume the following regarding the Host Spacecraft: The Host Spacecraft Manufacturer/Systems Integrator and the Instrument Developer will negotiate detailed parameters of the mechanical interface. The Mechanical Interface Control Document (MICD) will record those parameters and decisions. The Host Spacecraft will accommodate fields-of-view (FOV) that equal or exceed the Instrument science and radiator requirements. (It should be noted that FOV requests are best accommodated during the initial configuration of the host. Therefore, FOV may be a limiting factor in determining which host spacecraft is a viable candidate for your payload.) The Host Spacecraft Manufacturer will furnish all instrument mounting fasteners. The Host Spacecraft Manufacturer will provide a glint analysis that demonstrates that no reflected light impinges onto the Instrument FOV, if requested by the Instrument Developer. The Host Spacecraft Manufacturer will furnish the combined structural dynamics analysis results to the Instrument Developer. Mechanical Interface The Instrument should be capable of fully acquiring science data when directly mounted to the Host Spacecraft. If precision mounting is required, the Instrument Provider should assume supplying a mounting plate to meet those requirements. Such an accommodation could affect the Instrument Providers mass budget. Rationale: Broad survey of industry hosted payload accommodations indicate nadir-deck mounting of hosted payloads can be accommodated. Alternative mechanical interface locations or kinematic mounts are not prohibited by this guidance but may increase interface complexity. Mechanical Accommodation Mass The Instrument mass should be less than or equal to 100 kg. Rationale: Based on broad survey of industry hosted payload accommodations, instrument mass of approximately 30kg and below would maximize opportunity for finding a host. Opportunities above 100kg may exist but significantly decrease hosting probability. Volume The Instrument and all of its components should remain within a volume of 0.15 m3 during all phases of flight.
Rationale: Defines a verifiable (testable) limit for off-nominal input voltage testing of an instrument. Mechanical Guidelines Assumptions The HPIG mechanical guidelines assume the following regarding the Host Spacecraft: The Host Spacecraft Manufacturer/Systems Integrator and the Instrument Developer will negotiate detailed parameters of the mechanical interface. The Mechanical Interface Control Document (MICD) will record those parameters and decisions. The Host Spacecraft will accommodate fields-of-view (FOV) that equal or exceed the Instrument science and radiator requirements. (It should be noted that FOV requests are best accommodated during the initial configuration of the host. Therefore, FOV may be a limiting factor in determining which host spacecraft is a viable candidate for your payload.) The Host Spacecraft Manufacturer will furnish all instrument mounting fasteners. The Host Spacecraft Manufacturer will provide a glint analysis that demonstrates that no reflected light impinges onto the Instrument FOV, if requested by the Instrument Developer. The Host Spacecraft Manufacturer will furnish the combined structural dynamics analysis results to the Instrument Developer. Mechanical Interface The Instrument should be capable of fully acquiring science data when directly mounted to the Host Spacecraft. If precision mounting is required, the Instrument Provider should assume supplying a mounting plate to meet those requirements. Such an accommodation could affect the Instrument Providers mass budget. Rationale: Broad survey of industry hosted payload accommodations indicate nadir-deck mounting of hosted payloads can be accommodated. Alternative mechanical interface locations or kinematic mounts are not prohibited by this guidance but may increase interface complexity. Mechanical Accommodation Mass The Instrument mass should be less than or equal to 100 kg. Rationale: Based on broad survey of industry hosted payload accommodations, instrument mass of approximately 30kg and below would maximize opportunity for finding a host. Opportunities above 100kg may exist but significantly decrease hosting probability. Volume The Instrument and all of its components should remain within a volume of 0.15 m3 during all phases of flight.
03-HPIG-01-12-17-220pm-dee-MASTER-copy.docx