SAM #80NSSC26934533Q

NASA Sole Source Procurement: University of Tartu Calibration & Characterization Services for DALEC and SeaBird/TriOS Sensors

NASA Goddard Space Flight Center (GSFC) requires specialized calibration and characterization services to support the PACE Mission's data validation efforts. - Government Buyer: - NASA Goddard Space Flight Center (GSFC), managed by Antonio Mannino - OEM/Vendor: - University of Tartu (sole source provider) - Products/Services Requested: - Absolute radiometric calibration of DALEC system (wavelength range 350 nm to 900 nm, ISO17025 accredited) - Absolute radiometric calibration for SeaBird/TriOS sensors - Angular response (irradiance) measurement for SeaBird sensors (-90° to +90°, 5° intervals, 2 azimuthal planes) - Polarization sensitivity (radiance) for SeaBird/TriOS sensors (0° to 360°, 15° intervals, 350 nm to 950 nm) - Thermal characterization for SeaBird/TriOS sensors at five temperature points (+5°C, +10°C, +20°C, +30°C, +40°C) - Straylight distribution function for SeaBird/TriOS sensors (2D matrix, 350 nm to 950 nm) - Notable Requirements: - All services are highly specialized and tailored to the DALEC and SeaBird/TriOS sensor systems - University of Tartu is the only provider capable of meeting these technical requirements - Each calibration/characterization service is a separate line item with a quantity of one - Services are critical for radiometric accuracy and mission data validation

Description

NASA/NSSC has a requirement for University of Tartu SeaBird & DALE System Services.

NASA/NSSC intends to issue a sole source contract to University of Tartu under the authority of FAR 12.102(a). It has been determined that University of Tartu Ulikooli 18 Tartu Estonia is the sole provider of University of Tartu SeaBird & DALE System Services

NASA/NSSC will be the procuring center for this effort. Performance will be located at NASA/ Goddard Space Flight Center (GSFC). The Government intends to acquire Commercialitems or services using the provisions, clauses and procedures prescribed in FAR Part 12 for Commercial

The NAICS Code for this procurement is 611310.

Interested organizations may submit their capabilities and qualifications to perform the effort in writing to the identified point of contact not later than 3:00 p.m. Central Standard Time on 6/8/2026. Such capabilities/qualifications will be evaluated solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. A determination by the Government not to compete this proposed effort on a full and open competition basis, based upon responses to this notice, is solely within the discretion of the government. Oral communications are not acceptable in response to this notice. NASA FAR Supplement Clause 1852.215-84, Ombudsman, is applicable.

The Center Ombudsman for this acquisition can be found at https://www.hq.nasa.gov/office/procurement/regs/Procurement-Ombuds-Comp-Advocate-Listing.pdf .

Primary Point of Contact: Kacey Hickman Procurement Specialist Kacey.l.hickman@nasa.gov

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