Status and Strategies for COSMIC-II Planning Oct 10, 2008

Outline n Status of NSPO/NSC planning efforts n Status of NOAA planning efforts n Strategy to bring the COSMIC-II project together n New Receiver Developments n Missions of Opportunity

Status at NSPO NSPO is currently working on three projects: –FORMOSAT-5 (a FORMOSAT-2 follow-on, a remote sensing project) –FORMOSAT-6 (a microsat project, payload to be defined) –Development of a small launcher (designed for FORMOSAT-6) Currently NSPO does not have funding for COSMIC-II NSPO is hoping to secure special funds from NSC for COSMIC-II An Executive Board will meet in November and review all current NSPO activities, and make recommendations to NSC. Reprogramming is necessary to make funds available for COSMIC-II NSPO would like U.S. to help their FORMOSAT-6 program, including payloads (prototype TriG?) and launcher. This may become a “risk reduction” project for COSMIC-II (if an agreement can be reached)

NSC Lou Lee’s (NSC Chairman) position: –Like to have a mission that represents significant advancement over COSMIC (e.g., more satellites, better receiver, better antenna gain, lower latency, …etc) –NSPO needs to contribute resources (e.g., funds and people) toward COSMIC-II (should not expect NSC to pay 100%) –Needs to stress new sciences made possible with COSMIC-II (NSC is not responsible for operation) –Needs to demonstrate share between U.S. and Taiwan (Taiwan should not pay more than 50%) –Needs to have significant societal impact for Taiwan (e.g., improve typhoon prediction) – key factor to get approval by Taiwan congress

Near Term Strategy What we need NSC/NSPO to do: –Authorize Nick Yen (and his team) to work with NOAA to develop a preliminary program plan in October –Establish a “COSMIC-II Planning Project” – allow NSPO and NOAA to work on a detailed program plan (for 1-2 years) –Establish an oversight board to oversee COSMIC-II program development –Establish a clear chain of commands for COSMIC-II planning (whom does Nick report to?) –Identify “decision point” for moving forward with COSMIC-II (need to be synchronized with NOAA decision making) –Identify science team to work with U.S. science team

Other Considerations for COSMIC-II Planning n Stick to name ‘COSMIC-II’ n Target Launch for 2013 –Need to start development of TriG or similar payload n Develop appropriate contractual and legal vehicles (e.g., AIT- TECRO Agreements, TAAs) n Need to continue to promote COSMIC and its science applications n Need to strengthen research, education and out reach n Need to build connections with other international missions

Status of NOAA planning efforts n Submit a preliminary budget plan (for 2011 budget) for an RO mission by November 15, 2008 –Few details needed here, identify roles for various partners, develop funding profile DAVE?

New Receiver Developments n Pyxis by BRE –GPS/Galileo, 1X4 HF patch antenna? –ROM cost $1M/unit? –Some funding/schedule risk (2011 Cicero launch), low technical risk n TriG by JPL/BRE –GPS/Galileo/GLONASS(CDMA), large antenna w/ beem steering –ROM cost, $7M+$1M/unit (no I&T, no data processing) –30-month effort, Need funding NOW n ROSA by Italian Space Agency –Few details known, OL tracking –Launch n GRAS by Saab/Erickson –High gain antenna, expensive, massive, power hungry n JAVAD/GFZ –Few details known

IGOR vs. IGOR+ vs. Pyxis IGOR/IGOR+ Pyxis

Pyxis Specification Highlights –3 Frequencies Required: L1, L2 and L5 L5 is difficult to process w/ current direct sampling design –2-bit Sampler Desired: ~1dB increase in SNR 2-bit RF samplers difficult to find and relatively power-hungry and large in size –Noise floor reduction Dominated by antenna filter/LNA >30dB Gain, <0.5dB NF LNA –Size reduction Work to incorporate the current DIP/AMP/Sampler functionalities all within the volume of a current DIP/AMP box –Maintain or reduce power consumption of current Including addition of higher-power LNA, OCXO, and new L5 signal –Elimination of commercial grade components –Attitude Determination Capability –API

Size Comparison 2-Channel Sampler 3.0” x 1.5” x 0.5” Dual Channel (L1 and L2) Discrete Modules with 1-bit Samplers: Triple Channel (L1, L2, and L5) RFIC with Integrated 2-bit Samplers: 3.0” x 1.5” x 0.5” 0.35” x 0.35”, Plus supporting filters 2.0” x 1.25” GNSS RF-IC

TriG GPS RO Receiver n JPL/BRE submitted whitepaper/proposal (30-month) to NOAA n Currently first choice in NOAA GPS RO plans n GPS + Galileo + GLONASS n Space hardened electronics (radiation tolerant CPU and RF down converters) n Tracks new signals: –GPS L2C and L5 –Galileo Open Signal –GLONASS’ CDMA Upgrade n 4-6 antennas, with identical RF-hybrid chips n Digital beam steering from 4-6 antennas n Dedicated CPU for science processing n BlackJack based real-time GNSS processing (reliable, flexible)

Missions of Opportunity “Poor Man’s ” Constellation n We should do this anyway for science - less useful for operations n Pros –Lowest cost (to US/NOAA) –Some science to be done –Demonstrate truly receiver, platform independence –Supplement COSMIC, METOP, COSMIC-II data n Cons –Not optimized for global observations –Not an operational system –Degradation compared to COSMIC –Multiple platforms, receivers, software challenges –Significant efforts required for coordination and management –Need a center to serve as data repository (UCAR?) and to ensure conformity to uniform data format and processing software

Future RO Missions MissionLaunch- Duration Duration (years) GPS RO Payload # Soundings/day (# SC) Remarks COSMIC4/2006~5IGOR, HF antennas2500 (6)Real time-ops METOP-A5/200710GRAS600Real time-ops TerraSAR-X7/20055IGOR, HF antennas400RT? Megha- Tropiques Italian ROSA600Equatorial, RT? Ocean-Sat220085Italian ROSA300Polar, Setting only, RT? TanDEM-X2009 Q2IGOR500 KOMPSAT Q2IGOR+500Limited Mem, RT? AQUARIUS/ SAC-D 5/20103ROSA600 METOP-B201110GRAS600 CICERO20115+Pyxis/TriG600 X 2 X (12/24) Planned COSMIC-II20125+Pyxis/TriG600 X 2 X (12/24) EQUARS2012IGOR+500 Iridium201310Pyxis/TriG600 X 2 X 66Proposal