# Presentation: 228083

## Instrument Concept Review 

***Instrument Concept Review ***
***Goddard Space Flight Center******	***
***Greenbelt, Maryland***
***August 2003***

*Global Precipitation Measurement **Microwave Imager*

*Mark Flaming*
*gilbert.m.flaming@nasa.gov*

## Instrument Concept and Risk Reduction Study Objectives

***Introduction***
***Welcome***
***Objectives of Study***
***Study Benefits to GPM***
***Procurement Status****** ***
***Administrative***
***Reminder of Procurement Sensitivity for Government Attendees***

## ICRR Study Objectives

***Objectives of Study***
***Following Slides from Kick-Off Presentation***

## ICRR Study Objectives

***Two primary objectives of study are:***
*Instrument Concept*
*Develop an Instrument Concept which provides confidence that:*
*Minimum performance requirements will be satisfied*
*Accommodation requirements are :*
*Compatible with available resources, and *
*Accurately reflect requirements for the completed instrument.*
*Risk Reduction*
*Goal is to have a low risk Phase B/C/D Procurement, and to demonstrate at the conclusion of the ICRR Study that:*
*Risks have been identified,*
*Risk mitigation plans have been developed and initiated, if required.*

## ICRR Study

***Key Study Requirements***
***Instrument Concept to conform to the requirements contained in the GMI Requirements Document***
***Commonality between Core and Constellation instruments ***
*Minimize cost*
*Measurements obtained by the two instruments will be very similar*
***Minimize use of materials that may survive reentry (Titanium, Stainless Steel)***
***Design Life:  36 months***
***Momentum compensation***
*Instrument currently is required to provide compensation*
*GPM is doing a trade to determine whether the best system approach is for the spacecraft or the instrument to provide the compensation*
***Spacecraft Interfaces***
*Interfaces shown on the GPM website dated January 21, 2003 are preliminary, and subject to change*
*Anticipate some flexibility with the spacecraft-side of the interface during this study to accommodate instrument-unique design requirements*
*Core Spacecraft is planned to be built by NASA at GSFC*
*Constellation Spacecraft *
*GMI is currently the only instrument manifested*
*Launch fairing shown in drawings has 1.4 m dynamic envelope*
*Larger diameter fairing (2.4 m) available, but GPM Project incurs additional $3 Million in cost*
*If use of 1.4 m diameter fairing presents substantial difficulty, advise GPM Project*

## ICRR Study Objectives

***Additional Objectives***
***Provide opportunity for contractors to obtain a good understanding of NASA’s objectives, priorities and requirements for GMI***
*Good knowledge of NASA’s requirements and priorities is very important for the Phase B/C/D Procurement*
*Helps to ensure both the proposed work and costs conform accurately to NASA’s needs*
*Helps to minimize both cost and schedule growth during development *
*Technical interaction during ICRR Study is encouraged, *
*We will not make design decisions, influence strategy for bidding on the Phase B/C/D procurement, etc.*
*NASA will protect against cross fertilization/technical transfer of ideas*
***Provide opportunity for contractors to provide comment/recommendations to the key GMI procurement documents ***
*Comments/recommendations are welcome at any time*
*Technical Interchange Meeting (TIM) should address recommendations as an agenda item*
***Schedule Required for Phase B/C/D***
*Time required from Contract Award to first unit delivery*
*Optimum timing for second unit delivery*
***Cost Estimate***

## ICRR Study

***Instrument Manager’s Perspective on Study***
***Very good relationships have been established between the Government and the Contractors ***
***NASA Headquarters (Code Y) has expressed strong support for studies***
*Belief that the Risks associated with the GMI procurement have been addressed*
*Helps to reinforce Headquarters strong support for the overall GPM program*
***Maturity of the Instrument Concepts have advanced***
*Will help reduce period of performance from contract award to first unit delivery*
***GPM has obtained very good feedback on the key GMI Acquisition Documents (GMI Requirements Document, MAR, etc.)***
*Confident that a very good procurement package will go out*
***Contractors have a very good understanding of GPM’s objectives, requirements and constraints***
*Allows the preparation of better, more responsive proposals*

## Procurement Status

***Procurement Status***
***GPM Budget for FY04 and beyond has not yet been released***
*Discussions on various budget scenarios has taken place with Headquarters*
***Acquisition Strategy Meeting (ASM)***
*Provides Formal Authorization to initiate Procurement*
*Headquarters has been advised that GPM is ready to present at their convenience*
***Acquisition Documents Have Been Drafted, and following final review, are ready for release***

## Administrative

***Administrative***
*Questions and Comments are encouraged, provided they are relatively brief*
*If lengthy discussions are required, a side session can be arranged*
*Comment sheets are available to document comments*
*Restroom locations *
*Out rear door, down hall & to left *
*Lunch available in Cafeteria – Re-opened, and now fit for dining*

## Procurement Sensitive Material

***Reminder for Government Attendees***
***Material being presented is ******Procurement Sensitive***
***Access is limited to Government Employees and on-site GPM Support Contractors***
***Material should not be discussed outside of the GPM Project***
***Please ensure hardcopies are kept in locked storage containers ***