Status Report

NASA SMD: Geospace Dynamics Constellation Solicitation Amended on August 19

By SpaceRef Editor
August 19, 2021
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On August 19, 2021, the National Aeronautics and Space Administration (NASA) Science Mission Directorate (SMD) is amending the solicitation for Geospace Dynamics Constellation (GDC) Investigations.  The GDC solicitation was released as Program Element Appendix (PEA) P of the Third Stand Alone Missions of Opportunity (SALMON-3) Announcement of Opportunity (AO). (Solicitation Number: NNH17ZDA004O-GDC)


This amendment extends the proposal due date to September 22, 2021 and the date of first instrument delivery to December 2025. This shift in the instrument deliveries keeps the time from investigation award to first flight unit delivery unchanged, and does not imply any other changes within the project schedule.


This extension does not permit the submission of new Notices of Intent. The extension does mean that the period for question/comments is extended per the rules given in the solicitation.


Comments and questions may be addressed by E-mail to the GDC Program Scientist Dr. Jared Leisner at (subject line to read “GDC PEA”).


Responses to all inquiries will be posted at the Questions and Answers (Q&As) location of the GDC Program Acquisition website at The period for questions/comments will be extended to match the extension, and will be clarified in the amendment.


SpaceRef staff editor.