GPM Event Timeline

The timeline below highlights important dates for GPM including recent events and those planned for the future up until the planned launch of our Core Spacecraft. Events include mission reviews, spacecraft/flight reviews, ground command and control segment reviews, planning workshops, and the launch.

(If you would like a larger, printable version of the timeline, click here (PDF). More details are available on some of the most recent or upcoming events - click on these items for the corresponding article.)

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GPM Responds to SRR Actions

On June 4-5, 2002, GPM conducted a System Requirements Review (SRR) at the Goddard Space Flight Center. At this review, the GPM team formally accepted the GPM Level 1 requirements, and presented the GPM Level 2 requirements—along with a plan showing how to achieve them—to the System Review Team (SRT) and the Independent Review Team (IRT). These review teams assessed the entire architecture of the GPM mission to ensure that the program is progressing as planned, and that all requirements are sufficiently addressed.

During the SRR, review team members generated a number of Requests For Action (RFAs), identified Risk Areas, and made a series of Recommendations that GPM must consider as the design phase is initiated. None of the items identified by the review teams were “showstoppers,” and GPM considers the review a success.

In the weeks following the SRR, GPM personnel addressed those RFAs, Risk Areas, and Recommendations, and provided formal responses to the review teams. Most of the actions required were accomplished prior to the formal response, and are therefore ready for official closure. For the remaining few open actions, the GPM team clearly identified a plan and schedule for closure in the responses corresponding to those actions. Some of the open actions will be addressed at the upcoming December Core Spacecraft Concept Review (to view the article about this review, click here) and all of them will be completely closed by the time the Preliminary Design Review (currently scheduled for Fall 2003) occurs.

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Core Spacecraft Concept Review Coming Up

On December 9-10, 2002, GPM will hold a Core Spacecraft Concept Review at the Goddard Space Flight Center. At this internal Project-level review, members of the Core Spacecraft team will present the status of the spacecraft design concept. Also invited to attend the review are members of the Applied Engineering and Technology Directorate (AETD) engineering team, and members of the review boards from the June 2002 GPM System Requirements Review (SRR).

The purpose of the upcoming December review is to ensure that the Core Spacecraft design concept is consistent with the Level 1 mission requirements presented previously at the SRR.

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