Request for Information: Global Navigation Satellite System Radio Occultation Instruments and Spacecraft

Updated April 1, 2025: NOAA responses to questions received are now posted. The response due date remains unchanged.

Updated March 12, 2025: The RFI Attachment has been updated; changes are noted in red. Questions and response dates remain unchanged.

This Request for Information (RFI) seeks information on the development and capabilities of Global Navigation Satellite System (GNSS) radio occultation (RO) instruments, both in-situ and remote sensing. Please note that this RFI is intended for informational purposes only and is not a request for proposals, nor does it serve as a solicitation for contracts or grant awards. The Government is under no obligation to act on any submissions.

The Government will not reimburse respondents for any costs incurred in responding to this request. See attached RFI for further details. Comments and questions regarding this RFI must be submitted to the Contracting Officer at the email address provided by Friday, March 28, 2025 at 2:00 PM Eastern Time Capability statements must be received via email by the Contracting Officer and Contract Specialist at the address provided below no later than 2:00 pm Eastern Time on Friday, April 18, 2025.