MISSION PLAN - PDS Small Bodies Node

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3.3 Activation and Checkout Subphase 38 3.4 Mission Operations 39 4.0 Cruise Phases 40 4.1 Overview 40 4.2 Interstellar Dust Science 40 4.2.1 Interstellar Particle Collection Subphases 41 4.2.2 Cruise Phase CIDA Experiment 44 4.2.3 Expansion Opportunities for Interstellar Particle 47 Experiments 4.2.4 Mission Operation Considerations 49 4.3 Mission Operations 49 5.0 Earth Gravity Assist Phase (EGA-60 to EGA+30 days) 52 5.1 Overview 52 5.2 Mission Operations 53 6.0 Wild-2 Encounter Phase (E-100 to E+50 days) 54 6.1 Overview 54 6.2 Science Operations 58 6.2.1 Aerogel Collection of Cometary Dust 58 6.2.2 Comet Coma and Nucleus Imaging 58 6.2.2.1 Coma Images 58 6.2.2.2 Nucleus Images 60 6.2.2.3 Imaging Calibrations 61 6.2.3 CIDA and DFMI Encounter Experiments 62 6.2.4 Delivery Accuracy and Science Implications 62 6.2.5 Nucleus Tracking 63 6.3 Mission Operations 64 7.0 Earth Return Phase (ER-90 to ER+1 day) 67 7.1 Overview 67 7.2 Earth Return Operations 68 7.2.1 Approach Subphase 68 7.2.1.1 Earth Entry Control 68 7.2.1.2 Navigation Requirements 69 7.2.1.3 Spacecraft / SRC Separation 69 7.2.2 Entry, Descent and Recovery Subphases 70 7.3 Mission Operations 72 8.0 Planetary Protection 73 9.0 Appendix A: Geometry Data Sets 74 9.1 Mission Data Set 75 9.2 Launch Phase Data Set 77 9.3 Earth Gravity Assist Data Set 80 9.4 Wild-2 Encounter Data Set 83 9.5 Earth Return Data Set 90 10.0 Appendix B: Attitude Control Unbalanced Thruster Modeling 93 10.1 Limit Cycle Model 93 ii
10.1.1 Spacecraft Attitude History 93 10.1.2 Attitude Control Force Modeling 94 10.1.3 Model Parameters and Characteristics 96 10.2 Slew ∆V Model 98 10.2.1 Slew Types and ∆V Equations 99 10.2.2 Spacecraft Slew History 100 10.2.3 Model Parameters and Characteristics 102 11.0 Appendix C: Event Listing 109 12.0 Appendix D: ISP Collection and CIDA Experiment Tables 115 13.0 Appendix E: PRD Traceability Matrix 134 iii
Page 1 and 2: STARDUST MISSION PLAN February 1, 1
Page 4 and 5: STARDUST MISSION PLAN Edward A. Hir
Page 7: Table of Contents Table of Contents
Page 11 and 12: Figure 6.2-1.a Wild-2 Encounter Com
Page 13 and 14: Table 10.1-3 Spacecraft Attitude Pr
Page 15 and 16: kg km L L/O Kilogram Kilometer Laun
Page 17 and 18: Change Log Change Letter Date Affec
Page 19 and 20: 1.0 Introduction 1.1 Purpose The pu
Page 21 and 22: 2.0 Mission Overview 2.1 Mission Ob
Page 23 and 24: Fairing STARDUST Second Stage Star3
Page 25 and 26: propulsive maneuvers. To avoid pote
Page 27 and 28: The STARDUST camera is necessary to
Page 29 and 30: of-view is smaller, as described in
Page 31 and 32: Backshell Avionics Deck Parachute C
Page 33 and 34: Earth Gravity Assist 01/15/01 Earth
Page 35 and 36: Cruise 2 (Earth-Wild-2) ISP Collect
Page 37 and 38: 2.3.2 Launch Period Strategy 2.3.2.
Page 39 and 40: Table 2.3-2 Baseline Mission Parame
Page 41 and 42: Table 2.3-2 Baseline Mission Parame
Page 43 and 44: *B plane angle (deg) -41.051 -40.96
Page 45 and 46: 2.3.2.2 ∆V Budget The total ∆V
Page 47 and 48: Accumulation of Radiation with Time
Page 49: Table 2.3-4 STARDUST Alternate-2 Mi
Page 52 and 53: calculations will require more deta
Page 54 and 55: 10 17 10 16 10 15 10 14 10 13 Fluen
Page 56 and 57: 8 10 flare, no shielding 6 10 4 10
Page 58 and 59:
The orbit of comet Wild-2 was drast
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• Dust density = Nucleus density
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2.4.4 Interstellar Dust Science Pla
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Launch Initial Acquisition TCM-1 Ac
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Stage II ignition t=277.5 s h=66.4
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Special ‘coming-off-theperiscope
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phases are very similar to the stan
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presented in tables contained in Ap
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Figure 4.2-4.b. Beta Meteoriod Impa
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180 Off-SEP & ORBIT normal angle (d
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2/6 launch Events Attitude 74 days
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yaw, while continuing to meet solar
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Time Image Description images pixel
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(EGA-60d to +30d) TCM 4 (EGA-60 d)
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6.0 Wild-2 Encounter Phase (E-100 t
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the installation of the HGA. The su
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Date Sept-03 Oct-03 Nov-03 Dec-03 J
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Coma images will be acquired primar
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mirror via a simple one dimension t
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The cross track error corresponds t
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14 12 10 24 km 3 sigma distance 1 s
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All 34-m HEF except selective 70-m
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SRC Entry / Descent Atmospheric Ent
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Two TCM’s are planned within this
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It is important to note that, other
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8.0 Planetary Protection The object
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Earth-Probe Range Sun-Earth-Probe A
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9.1 Mission Data Set (cont) 14.00 E
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14.00 MOON-PROBE RANGE Launch Phase
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180.00 SUN-EARTH-PROBE ANGLE EGA Ph
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180.00 SUN-PROBE-MOON ANGLE EGA Pha
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180.00 SUN- WILD-2 -PROBE ANGLE Enc
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Cone & Clock Angles of Wild-2 Cone
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180 Cone & Clock Angles of Sun 180
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9.4 Wild-2 Encounter Data Set (cont
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16.00 MOON-PROBE RANGE Return Phase
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10.0 Appendix B: Unbalanced Attitud
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spacecraft attitude when the spacec
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Time From Launch Off-sun Angle (deg
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Acceleration (1E-11 km/s/s) 12 10 8
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+z, yaw +y, pitch +x, roll Figure 1
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** vectors evaluated at the time of
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Rgt Ascen (deg) [eme'2000] 360 300
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Table 10.2-6 Communications Schedul
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Table 10.2-6 Communications Schedul
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031228 19180 0 031229 19180 0 03123
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TRAJECTORY CORRECTION MANEUVERS EVE
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2453509.10737773 50518. 143437. 229
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50204. 3437. 2189.12 outb SEP = 3 d
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Table 12-1 ISP #1 Collection Period
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Table 12-2 ISP #2 Collection Period
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Table 12-4 ISP #2 Spacecraft Attitu
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Table 12-5 CIDA #1 Collection Perio
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Table 12-6 CIDA #2 Collection Perio
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908.000 41.659 20.000 9.272 175.100
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Table 12-8 CIDA #1 Spacecraft Attit
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Table 12-9 CIDA #2 Spacecraft Attit
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Table 12-11 CIDA #3 Solar Conjuncti
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13.0 Appendix E: PRD Traceability M
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MISSION PLAN - PDS Small Bodies Node

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