The CICERO Project - Radio...
Transcript of The CICERO Project - Radio...
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
The CICERO Project (Community Initiative for Continuing Earth Radio Occultation)
Thomas P. Yunck, Conrad C. Lautenbacher
A Community Approach to GNSS Radio Occultation
4th IROWG Workshop Melbourne, Australia
22 April 2015
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
“Be thou as chaste as ice, as pure as snow, thou shalt not escape calumny.” – Hamlet (III, i)
Thought For The Day
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
My writings c. 1998
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Where We Stand Today 0.5 GRACE (13 yrs old) 4.5 COSMIC (9 yrs old) 2 METOP (7.5 & 2 yrs old) 0.5 TerraSAR-X (7 yrs old?)
Happy 20th Anniversary! (for GPS-MET)
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CHAMP
SAC-C
GRACE
GPS/MET
COSMIC
GNSS RO 1995 - 2007
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
COSMIC: 2006 – ?
What next?
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
COSMIC-2 (c. 2004) and What Else ??
Broad Reach Engineering
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Dense RO Constellations
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
2 May 1995
GPS-RO Nanosat Concept (< 1 kg)
Twenty-Year Vision
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Nov 1995 Twenty-Year Vision
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
GPS-CLIM ESSP Proposal
Nov 1996
30 cm
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
GPS-CLIM: Cutaway
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CICERO: Community Approach to GNSS RO
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Back to 2007…
Broad Reach Engineering
The 1996 GPS-CLIM design was the basis for the BRE COSMIC-2 design (below) and the 2007 CICERO design.
Instrument: IGOR 1.5
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
At the Oct 2007 COSMIC Data Users Meeting we were hyping a launch date in
2011
(as was COSMIC-2)
Back to 2007…
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Based On What?
geooptics.com/report.pdf
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Quoted Prices (2008-10)
geooptics.com/report.pdf
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
• Earth observing programs are in crisis • Governments can’t meet soaring costs • Critical weather data gaps are looming
The Situation Today (2015) NOAA Weather Satellites:
JPSS
GeoOptics was formed to address this crisis with advanced micro-technologies:
>$11B, 9 years late >$11B, 9 years late Defense Weather Satellite
System
>$8B, CANCELLED >$8B, CANCELLED Flagship NASA Climate Mission
>$1.2B, CANCELLED >$1.2B, CANCELLED
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
A Paradox:
Satellite and space instrument costs have soared to staggering levels…
…while technology costs everywhere else have plummeted.
This trend is not sustainable…
…and severely limits the amount of environmental information we can acquire from space.
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
GRACE: A Case Study
Total Cost: ~$280M in FY15 $
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Costs In FY15 $US
GRACE: ~$280M
GRACE-FO: ~$560M Repeat of GRACE
Heritage design 15y of tech advance
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
JPSS Today
Four weather sensors on two platforms: $11.3 billion life cycle cost Average cost-to-orbit: more than $800 million per sensor
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
400 RO sats to orbit, ~800,000 profiles/day
$800,000,000 will soon buy:
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Impacts of Measurements on Weather Forecasts
At <5% of the observations (and a minute fraction of the cost), RO has a forecast impact comparable to IR (IASI & AIRS) and microwave (AMSU-A). In addition, the RO data, through its calibration effect, improves the IR and microwave results. Without RO included in the forecast, those bars would be smaller.
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
24 satellites by 2018 100 satellites by 2024?
The CICERO Project – Today’s Hype
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
The Instrument: Modified JPL TriG
– Same performance
– Reduced size and power
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
2015 2016 2017 2018 • • • • • • Pathfinder 2 operational
satellites +4 new op sats
+6 new op sats
+6 new op sats
+6 new op sats Launches:
Current level: 1000-1600/day
Maintain 24
24 sats reached
Nominal Deployment Timeline
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
RO Over Oklahoma Today (COSMIC, etc.)
Approximate daily coverage
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
COSMIC-2 + 24 CICERO satellites
Approximate daily coverage
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
CICERO Data Policy
• Data will be FREE to all researchers worldwide from day 1
• Data will be FREE to all countries on a trial basis
• Data will be FREE to all countries once a “worldwide license” is fully subscribed
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Benefits of This Model
• Will deliver lots of new data quickly – minimal cost, spread over many nations
• Eases the agency approval process – simpler procurement process – zero cost risk to government
• Provides data indefinitely
• Offers built-in technology infusion path – launches every few months
• Science community will share oversight
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Scientists will serve directly:
• As Directors/Officers/Managers • On the Science Advisory Board • As research staff • As technical consultants • By providing new technologies
CICERO as a Community Cooperative
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Achieve the greatest good with available resources • Deploy RO sensors in large numbers,
• …as soon as humanly possible,
• …at the lowest possible cost,
• …shared by many public users,
• …with continuous technology infusion,
• …at zero public risk.
What we’re trying to do:
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
How Many RO Profiles/Day? • 50,000 ?
• 100,000 ?
• 200,000 ?
• 500,000 ?
• 1,000,000 ?
• 2,500,000 ?
• ________ ?
Taking Predictions for IROWG-14 (April 2025)
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CICERO: Community Approach to GNSS RO
22 April 2015 IROWG-4, Melbourne, Australia
Questions?