Discovery and Surprise from Entry Probes to Giant Planets
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1 Discovery and Surprise from Entry Probes to Giant Planets Thomas R. Spilker 2014 June 14 11th International Planetary Probes Workshop Short Course Pasadena, CA, USA TRS-1
2 TRS-2
3 Planet Characteristic Mass (Earth masses) Equatorial radius (km) Mean mass density (gm/cm 3 ) Jupiter Saturn Uranus Neptune TRS-3
4 Characteristic Atmospheric Helium Planet Abundance Icy Element Abundance (x Solar) Tropopause Temperature (K) Jupiter 11-12% Saturn 13±5% 5-10? 90 Uranus 18%? 20-50? 50 Neptune 18%? 20-50? 50 TRS-4
5 Characteristic Atmospheric Helium Planet Abundance Icy Element Abundance (x Solar) Tropopause Temperature (K) Jupiter 11-12% Saturn 13±5% 5-10? 90 Uranus 18%? 20-50? 50 Neptune 18%? 20-50? 50 TRS-5
6 Characteristic Atmospheric Helium Planet Abundance Icy Element Abundance (x Solar) Tropopause Temperature (K) Jupiter 11-12% Saturn 13±5% 5-10? 90 Uranus 18%? 20-50? 50 Neptune 18%? 20-50? 50 TRS-6
7 3 98 Jupiter Uranus Saturn Neptune TRS-7
8 Speeds in km/s; assume typical hyperbolic approach V Entry Orbit Inclination 0 (prograde) Destination 90 (polar) 180 (retrograde) Jupiter Saturn Uranus Neptune Color-coded entry condition indicators assume shallow entry angle TRS-8
9 TRS-9
10 TRS-10
11 TRS-11
12 TRS-12
13 TRS-13
14 Total mass: 339 kg Ref: Galileo Probe Deceleration Module Final Report, Doc No. 84SDS2020, General Electric Re-entry Systems Operations, 1984 AIAA, Project Galileo Mission and Spacecraft Design, Proc. 21st Aerospace Science Meeting, Reno, NV, January 10-13, 1983 TRS-14
15 Instrument Mass, Kg Average Power, W Atmospheric Structure Instrument (ASI) 6 Neutral Mass Spectrometer (NMS) Nephelometer (NEP) Lightning & Radio Emissions Detector (LRD) & Energetic Particle Instrument (EPI) Helium Abundance Detector (HAD) Net Flux Radiometer (NFR) Doppler Wind Experiment (DWE) TRS-15
16 TRS-16
17 TRS-17
18 TRS-18
19 TRS-19
20 TRS-20
21 Isotopic Ratios: Solar (±)! Atreya, 1999
22 TRS-22
23 Data Set Needed for Meaningful Comparisons Green Background: Data already in hand
24 Data Set Needed for Meaningful Comparisons Galileo Probe Green Background: Data already in hand
25 Data Set Needed for Meaningful Comparisons Galileo Probe Juno Blue Background: Data planned from a mission already in flight
26 Data Set Needed for Meaningful Comparisons Galileo Probe Juno Cassini Proximal Orbits Blue Background: Data planned from a mission already in flight
27 Data Set Needed for Meaningful Comparisons Galileo Probe Saturn Probe Juno Cassini Proximal Orbits Yellow Background: No mission yet approved to acquire data, but recommended by 2012 Decadal Survey
28 Undergraduate: Space Technology TRS-28
29 Undergraduate: Space Technology TRS-29
30 Undergraduate: Space Technology Undergraduate: Computer Science TRS-30
31 Undergraduate: Space Technology Undergraduate: Computer Science Undergraduate: Computer Sci + Geol/Geophys TRS-31
32 Undergraduate: Space Technology Undergraduate: Computer Science Undergraduate: Computer Sci + Geol/Geophys A JOB (gasp!): Petroleum Expl n TRS-32
33 Undergraduate: Space Technology Undergraduate: Computer Science Undergraduate: Computer Sci + Geol/Geophys A JOB (gasp!): Petroleum Expl n TRS-33
34 Undergraduate: Space Technology Undergraduate: Computer Science Undergraduate: Computer Sci + Geol/Geophys A JOB (gasp!): Petroleum Expl n VOYAGER TRS-34
35 Undergraduate: Space Technology Undergraduate: Computer Science Undergraduate: Computer Sci + Geol/Geophys Grad School: Electrical Eng + Radio Science A JOB (gasp!): Petroleum Expl n VOYAGER TRS-35
36 Undergraduate: Space Technology JPL: Radio Astr. & Atmos c Science Undergraduate: Computer Science Undergraduate: Computer Sci + Geol/Geophys Grad School: Electrical Eng + Radio Science A JOB (gasp!): Petroleum Expl n VOYAGER TRS-36
37 Undergraduate: Space Technology JPL: Radio Astr. & Atmos c Science JPL: Mission Architecture Undergraduate: Computer Science Undergraduate: Computer Sci + Geol/Geophys Grad School: Electrical Eng + Radio Science A JOB (gasp!): Petroleum Expl n VOYAGER TRS-37
38 Retirement!! Undergraduate: Space Technology JPL: Radio Astr. & Atmos c Science JPL: Mission Architecture Undergraduate: Computer Science Undergraduate: Computer Sci + Geol/Geophys Grad School: Electrical Eng + Radio Science A JOB (gasp!): Petroleum Expl n VOYAGER TRS-38
39 TRS-39
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