Space weather Observations at L1 to Advance Readiness (SOLAR) Series X-ray Irradiance Sensor (XRIS)
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION › NATIONAL AERONAUTICS AND SPACE ADMINISTRATION › NASA GODDARD SPACE FLIGHT CENTER
Description
The National Aeronautics and Space Administration's Goddard Space Flight Center is pleased to release the Request for Proposal (RFP) for the X-ray Irradiance Sensor (XRIS) acquisition. This RFP replaces the Draft RFP (Notice ID: XRIS-DRFP-80GSFC26R7004) issued on February 4, 2026 in its entirety. All attachments to this posting together constitute the complete RFP, including all instructions, restrictions, provisions, and contract clauses. Update 1: Posted Question and Answer document. Amendment 1: The purpose of this amendment is to correct clause GSFC 52.217-92 PERIOD OF PERFORMANCE. Update 2: Posted Questions and Answers #2 and #3.
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