| 4.5.4-8-1 Ensure that all interfaces are identified, requirements are defined, and are consistent with interface control documents |
Phase B |
Phase C |
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Ensure that all interface requirements are defined by Preliminary Design Review, completed and presented by Critical Design Review. Ensure that both physical and functional interfaces are defined. All worst-case analyses must show compliance of all components to power derating curves established to meet the mission lifetime. Thermal analysis must show that all semiconductor junction or channel temperatures of all devices are kept below the maximum value required to assure mission lifetime regardless of satellite location in orbit and power dissipation of the EPS. Additionally, high power handling interfaces must be scrutinized to prevent the potential for multipaction.
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NA
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NA
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Space Vehicle Systems Engineering Handbook, TOR-2006(8506)-4494, Major Interfaces Chapter; Standard/Handbook for Radio Frequency (RF) Breakdown Prevention in Spacecraft Components (TOR-2014)-02198
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| 4.5.4-8-2 Ensure end-to-end compatibility of the payload with all others systems and external systems involved in the specific functionality |
Phase B |
Phase C |
Phase D1 |
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Ensure the Payload POC has a good understanding of other subsystems which interface with the payload and be able to determine if the defined interface is adequate to ensure proper mission operation and functionality. This understanding is especially critical when anomalies arise that involve several subsystems and necessitate a high level system view in order to objectively address problems and solutions in the context of the overall program.
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NA
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NA
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Space Vehicle Systems Engineering Handbook, TOR-2006(8506)-4494, Major Interfaces Chapter
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| 4.5.4-8-3 Ensure all interfaces are tested in an operational-like environment |
Phase D1 |
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Ensure that the interface testing is described and consistent with the verification planning
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NA
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NA
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Space Vehicle Systems Engineering Handbook, TOR-2006(8506)-4494, Major Interfaces Chapter
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| 4.5.4-8-4 Ensure subsystem and system level (SC to PL) thermal and mechanical interface requirements analysis is complete and interfaces are compatible |
Phase A |
Phase B |
Phase C |
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Ensure that ICDs defining thermal and mechanical interfaces both within and external to the PL subsystem and are complete and accurate. Review and verify assumptions on both sides of interfaces to ensure consistency. Location of antennas in the SV must guarantee their unobstructed Field Of View (FOV) toward their intended coverage area, this concept must be extended to antennas on gimbles and applicable to all solid angles of the antenna projected movement Antenna feeds and/or subreflectors must have an FOV which only illuminates their corresponding main reflectors even when gimbled or scanned to all operational angles If antenna feeds and/or subreflectors sidelobes are incident on another unintended main reflector, then interference and PIM budgets must be performed to insure that resulting signals or broadband noise falling within a victim receiver's passband do not degrade its noise floor.
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NA
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NA
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Space Vehicle Systems Engineering Handbook, TOR-2006(8506)-4494
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