SAM #N0018926QL147

Sole Source Earth Orientation Parameter (EOP) Momenta Services for US Naval Observatory

This opportunity involves a sole source procurement for specialized Earth Orientation Parameter (EOP) Momenta Services in support of the United States Naval Observatory (USNO) in Washington, DC. - Government Buyer: - Department of the Navy, NAVSUP Fleet Logistics Center Norfolk (Contracting Office) - United States Naval Observatory (USNO) - OEMs and Vendors: - Dr. Dennis McCarthy (sole source expert service provider) - Products/Services Requested: - Earth Orientation Parameter (EOP) Momenta Services - Expert consulting and analysis for EOP, including polar motion, UT1-UTC, and Earth orientation matrix calculations - Evaluation of atmospheric, oceanic, and hydrological angular momentum data - Development and improvement of prediction algorithms - Evaluation of nutation and precession models - Technical consultation and support for USNO's mission-critical operations - Service line items include a base year and three 12-month option years (total of four years) - Quantities: 12 units (months) per year, for each of the base and three option years - Unique/Notable Requirements: - Sole source justification based on Dr. McCarthy's unique expertise and over 25 years of experience - Services are critical for Department of Defense and GPS applications - No competitive proposals anticipated - Place of Performance: - U.S. Naval Observatory, 3450 Massachusetts Ave NW, Washington, DC 20392-5420

Description

This is a SOLICITATION for commercial items prepared in accordance with the information in FAR 12.102(a), using Simplified Acquisition Procedures. This solicitation SHALL be posted on Sam.gov (https://sam.gov/) on or before 26 May 2026. The RFQ number is N0018926QL147. This solicitation documents and incorporates provisions and clauses in effect through FAC 2026-01 (effective 13 March 2026) and DFARS Publication Notice 20251110 (effective 10 November 2025). It is the responsibility of the contractor to be familiar with the applicable clauses and provisions. The clauses may be accessed in full text at these addresses: https://www.acquisition.gov/far/ and http://www.acq.osd.mil/dpap/dars/dfarspgi/current/index.html. 

The NAICS code is 541990 and the Small Business Standard is $19.5 (millions of dollars).The proposed contract action is for EOP Earth Momenta Services in Support of the United States Naval Observatory in accordance with the Performance Work Statement (PWS) for which the Government intends to solicit and negotiate a Firm, Fixed Price contract with only one source, MCCARTHY DENNIS, under the authority of FAR 12.102(a). Interested persons may identify their interest and capability to respond to the requirement or submit proposals. This notice of intent is not a request for competitive proposals. However, all bids, proposals, or quotations received by the closing response date will be considered by the Government. A determination by the Government not to compete this proposed contract action based upon responses to this notice is solely within the discretion of the Government. The Small Business Office concurs with this determination.

This announcement will close at 11:00 AM EST on Tuesday, May 26, 2026. All responsible sources may submit a quote to Keisha Gordon-Blair, who can be reached via keisha.o.gordon-blair.civ@us.navy.mil, by 11:00 AM EST on Tuesday, May 26, 2026. A determination by the Government to not compete this proposed effort on a full and open competitive 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. All responsible sources may submit a quote which shall be considered by the agency.

Attachments:

Attachment I: Redacted Sole Source Justification

Attachment II: Solicitation N0018926QL147

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