1. NASA, CGMS-42 May 2014 Coordination Group for Meteorological Satellites - CGMS Update on Radio Occultation Activities at NASA Presented to CGMS-42 Working Group II, WGGII/7 Anthony J. Mannucci NASA Jet Propulsion Laboratory

2. NASA, CGMS-42 May 2014 Coordination Group for Meteorological Satellites - CGMS  Design and development completed – engineering model  NASA has authorized JPL to work with United States Air Force to deliver TGRS flight models for COSMIC- 2/FORMOSAT-7 - TGRS: “Trig GNSS Radio Occultation System” includes Trig and RO antenna subsystems  First flight unit to be delivered in 1-2 months Trig Radio Occultation Instrument

3. NASA, CGMS-42 May 2014 Coordination Group for Meteorological Satellites - CGMS Trig undergoing testing  Capable to receive GPS L1/L2/L5, Galileo E1/E5 and GLONASS  Multi-element digitally steered antenna array  High rate data acquisition and processing (100 Hz downlink, 1 kHz internal)  GPS legacy and modernized signals  GLONASS  Track all GPS+GLONASS in view  Software/firmware reconfigurable after launch  Advanced ionospheric processing COSMIC-2/FORMOSAT-7 Configuration: Trig Capabilities

4. NASA, CGMS-42 May 2014 Coordination Group for Meteorological Satellites - CGMS  Meteorological research including tropical cyclone forecast benefits of GNSS RO  Requirements studies for GNSS RO on the CLARREO mission  Process studies - Troposphere/stratosphere exchange - Planetary boundary layer - Widening of the tropical belt NASA GNSS RO Research

5. NASA, CGMS-42 May 2014 Coordination Group for Meteorological Satellites - CGMS  Creation of a GNSS RO climate data record  “Earth System Data Records Uncertainty Analysis” program, JPL lead  Creation of new data records fusing GNSS RO and other satellite data  Program: “Making Earth System Data Records for Use in Research Environments” (MEASURES)  Level 3 data products  Temperature, pressure, geopotential height  http://genesis.jpl.nasa.gov NASA GNSS RO Research

6. NASA, CGMS-42 May 2014 Coordination Group for Meteorological Satellites - CGMS  Trig next-generation GNSS RO instrument successfully developed  Flight models currently planned for delivery in 1-2 months  NASA research using GNSS RO leading to new climate data records, fused data products, and new scientific knowledge  Meteorological research will lead to improved use of GNSS RO for Numerical Weather Prediction Summary