AGI Technology Beyond Earth Orbit

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Default CB Ephemeris (cont’d)• Moons of–Mars, Jupiter, Saturn, Neptune, Pluto [no Uranus]–Use JPL SPICE files• mar033, jup204, sat077, nep016, plu006• de405–Contains planetary ephemerides too–Considers TDT – TDB difference• Span: 2000 – 2025<strong>AGI</strong>Pg 26 of 40www.agi.com
Modifying CB ephemeris• EphemerisSource JplDE–Available only for major planets, Sun, Moon–ApplyTDTtoTDBCorrectionForDE No [Yes]• EphemerisSourceJplSpice–JplSpiceId ##• Ex: 5 = Jupiter barycenter, 599 = planet center–Additional *.bsp file placed in STKData/Spice directory• Also supported–Analytic (TwoBody with element drift)–External Files (*.e files)<strong>AGI</strong>Pg 27 of 40www.agi.com
Page 1 and 2: AGIAGI TechnologyBeyond Earth Orbit
Page 3 and 4: Introduction (Woodburn)• Welcome
Page 5 and 6: Current/Historical Missions (Hall)
Page 7 and 8: Recent enhancements to Astrogator(B
Page 9 and 10: Orbit determination (Woodburn)• C
Page 11 and 12: Sequential range• Ambiguous two w
Page 13 and 14: Trk-34 tracking data format• Very
Page 15 and 16: Lunar gravity process noise model
Page 17 and 18: LP Position UncertaintyPosition Unc
Page 19 and 20: Central Bodies (Coppola)• Celesti
Page 21 and 22: Central Bodies (cont’d)• CB use
Page 23 and 24: CB Mu Values• Orbital element con
Page 25: Default CB Ephemeris Settings• Su
Page 29 and 30: Default Moon Attitude• Interpolat
Page 31 and 32: Attitude Reference• "Report of th
Page 33 and 34: Eclipse and Obstruction (LOS)• ST
Page 35 and 36: LTD Issues• Graphics display True
Page 37 and 38: Interplanetary Propagation (Berry)
Page 39 and 40: Future direction (Woodburn)• HPOP

AGI Technology Beyond Earth Orbit

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