Co-Investigator - The Gamma-Ray Astronomy Team - NASA

assurance, reliability, and maintainability analysis.The draft SMAPP will be finalized and submittedfor approval within the first 60 days of contractaward. The draft SMAPP may be found as AppendixB of the Burst Monitor management plan.Systems EngineeringUsing the Burst Monitor project plan andNPG7120.5A as a guide, a draft ICD will be developedfor MPE-provided hardware, the DPU and theBurst Monitor to spacecraft harness, when detailedinformation becomes available on the spacecraftinterface. A memorandum of understanding (MOU)will be developed with MPE that outlines the MSFCdata requirements (DR’s) that MPE will followduring development of the MPE flight hardware.A draft instrument integration plan and hardwareprocessing flow document, including identificationof ground support equipment (GSE) will be developed.SoftwarePreliminary requirements will be developed inphase B for flight software, operations software, andscience analysis software. For flight software, thefocus will be on the burst trigger and locationalgorithms. Specifically, we will perform tradestudies to determine if there is a cost effective andmore sensitive alternative to the BATSE techniquefor triggering. We will also derive a requirement forprogram and data memory. For the data analysissoftware, the focus will be on revisions and enhancementsto our spectral analysis package WING-SPAN.We will also work with the LAT team to determinewhat products are expected from the Burst Monitor,both on board and on the ground.Data Processing UnitA preliminary CEI performance specification forthe DPU will be produced in phase B. The primaryfocus will be on memory requirements derived fromthe flight software study. A cost/risk trade study willbe performed to determine the appropriate level ofredundancy.4.1.2 Max-Plank Development Phase A/B:MPE is a major collaborator in the development ofthe Burst Monitor. MPE will provide the GBMscintillation detector elements and other flightcomponents, the HVPS, and LVPS to the BurstMonitor Project. MPE provides these detectors at nocost to NASA. The science team will developperformance requirements and design specificationsby the MPE project team during phase B.Flight hardware tasks, undertaken by MPE, can besubdivided into two main parts: development andfabrication of the NaI and BGO detector modulesand fabrication of the HV and LV power supplies.Development and fabrication of the power supplieswill be performed under contract to MPE. Thedetector modules will be designed by MPE, togetherwith industry. At MPE a breadboard (BB) model ofthe detection chain will be built for optimizationand study of the electrical design. Fabrication andintegration of flight hardware and structural testmodels (STM’s) and the electrical models (EM’s) ofthe detector modules will be performed by industry.BGO and NaI crystals, needed for the flight hardware,will be contracted for separately by MPE.MPE scientific personnel will carry out all detectorperformance tests and detector calibrations.Development and fabrication of the detector moduleswill be accomplished in several phases. Theidea is to reach predefined goals and to simplify theorganization of the project at the end of each phase.For each phase a major reassessment of the projectwill be conducted that will allow an effective controlof the costs.The development plan with the different projectphases A/B is listed below with a short descriptionof the contents of each phase. The development ofthe detector modules will be accomplished with thehelp of several prototype and test modules, asneeded for design verification, spacecraft integrationfit and form, structural, thermal, electrical, andfunctional tests.MPE Development PlanPhase A—MPE and Contractors• Preliminary studies by MPE and MSFC/UAH55