NASA/GSFC requires design, fabrication, qualification, and delivery of flight Frequency Reference System (FRS) hardware for the LISA mission, consisting of three Flight Models and one Flight Spare, with each unit comprising the FRS-O optical reference cavity and FRS-E frequency-locking electronics. Deliveries are required on an aggressive schedule between February 2029 and May 2030, with minimal post-delivery support. NASA/GSFC intends to issue a sole source contract to BAE Systems Space & Mission Systems Inc. (BAE SMS) under FAR 6.103-1, based on a sources sought finding that only BAE SMS can meet the full FRS-O and FRS-E requirements within the fixed delivery schedule. BAE SMS has directly relevant flight heritage, including GRACE Follow-On and GRACE-C optical cavities, and is already developing mature pre-flight LISA FRS hardware through Technology Readiness Level and Engineering Test Unit phases with established long-lead supplier relationships. Interested organizations may submit capabilities and qualifications for determining whether to conduct the acquisition competitively, though the Government does not intend to acquire a commercial product or service under FAR Part 12 and retains discretion not to compete.

NASA’s Goddard Space Flight Center is seeking sources to design, analyze, fabricate, and qualify three flight assemblies and one flight spare Frequency Reference System (FRS) for the Laser Interferometer Space Antenna (LISA) mission. Each unit includes an optical reference cavity and associated electronics, with environmental testing required. Targeted delivery dates are February 2029 for the first flight unit, September 2029 for the second, March 2030 for the third, and May 2030 for the spare. Performance of services is anticipated at the vendor’s facility, with virtual or on-site monthly status reviews. No budget amount is specified in the description.