# Space weather Observations at L1 to Advance Readiness (SOLAR) Series X-ray Irradiance Sensor (XRIS)

Canonical: https://abierto.us/opportunities/80gsfc26r0006

- Solicitation number: 80GSFC26R0006
- Notice type: Solicitation
- Status: Closed. Deadline was July 6, 2026 at 5:00 PM EDT
- Department: National Aeronautics and Space Administration
- Contracting office: NASA Goddard Space Flight Center (80GSFC)
- NAICS: 336414 Guided Missile and Space Vehicle Manufacturing
- Product or service code: AR15 Space R&D Svcs; Space Flight, Research & Supporting Activities; R&D Facilities & Maj Equip
- First posted: June 4, 2026
- Last posted: June 30, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/b172062a4a614863b834cf7d198a7d61/view

## 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.

## Publications

- June 4, 2026: Solicitation, due July 6, 2026 at 5:00 PM EDT. Notice 554204af76ef446a902c3d4256d7ce14. https://sam.gov/workspace/contract/opp/554204af76ef446a902c3d4256d7ce14/view
- June 5, 2026: Solicitation, due July 6, 2026 at 5:00 PM EDT. Notice 55410e21d85840d580f5a2706cc3d918. https://sam.gov/workspace/contract/opp/55410e21d85840d580f5a2706cc3d918/view
- June 17, 2026: Solicitation, due July 6, 2026 at 5:00 PM EDT. Notice c40fe926e5fb497f9bcb4f7032eb4069. https://sam.gov/workspace/contract/opp/c40fe926e5fb497f9bcb4f7032eb4069/view
- June 30, 2026: Solicitation, due July 6, 2026 at 5:00 PM EDT. Notice b172062a4a614863b834cf7d198a7d61. https://sam.gov/workspace/contract/opp/b172062a4a614863b834cf7d198a7d61/view

## Points of contact

- Daniel Han, daniel.s.han@nasa.gov
- Suzanne Sierra, suzanne.k.sierra@nasa.gov

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/80gsfc26r0006.