Industry Day for PRD Change Summary.pdf

This document is a presentation slide deck summarizing Amendment 18 to the SMBA (Small Microwave Sounder) Draft RFP for NASA's NEON (Near Earth Orbit Network) program, presented in January 2026.

The presentation outlines changes to the Performance Requirements Document (PRD) Revision D (NS1-SMBA-REQ-0001 Rev D) incorporating industry feedback from the Draft RFP posted April 18, 2025 (Rev B) and Amendment 13 posted September 5, 2025 (Rev C), as well as internal NASA technical discussions and program changes. Major performance requirement revisions include: modifications to hyperspectral resolution specifications; refined reprogrammable detection capabilities for all hyperspectral and RFI detection bands; fixed heritage channel center frequencies aligned with ATMS standards; new beam polarization requirements for all SMBA channels (minimum one linear polarization, twist angle <0.1 degree, cross-polarization leakage <-20dB for K, Ka, W bands and <-15dB for others); replacement of striping requirements with 1/f noise ratio (≤0.10); and addition of passband gain ripple specifications. The document reflects revised calibration uncertainty definitions, redefined radiometric sensitivity (NEDT) with thermal noise contributions only, and resolved Technical Basis Documents for Synthetic Receive Function requirements. Functional and test requirement changes include extended ground storage to 13 years, relaxed TVAC thermal balance testing, reduced TVAC cycles from 12 to 8 before instrument delivery, and elimination of CS116 EMI/EMC testing. Requirements are renumbered sequentially with sections on Safety, Mission Assurance, Contamination Control, and Instrument Simulator/Emulator moved to the SOW/CDRL. The RFP is scheduled for Q1 CY 2026 release, with proposals due 60 calendar days thereafter and award anticipated Q2 CY 2027. One-on-one industry discussions continue until RFP blackout.