AGI Technology Beyond Earth Orbit

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Default Attitude for other CB’s• IAU2000 Frame definition• Models– Right Ascension and Declination of Fixed Z axis– Rotation about Fixed Z axis• Fourier series, with secular drift terms• Coefficients contained in *.rot file– Same directory as *.cb file• Fixed, Inertial, True of Epoch/Date, Mean of Epoch/Date• Inertial frame: constant rotation from J2000– Mean of Epoch at J2000 epoch<strong>AGI</strong>Pg 30 of 40www.agi.com
Attitude Reference• "Report of the IAU/IAG Working Group onCartographic Coordinates and RotationalElements of the Planets and Satellites: 2000",Celestial Mechanics 82: 83-110, 2002.–Corrected and updated in 2005. (“…Satellites: 2003”)–Also contains size and shape information• True Of Epoch/Date–Ignores Rotation about Fixed Z axis• Mean of Epoch/Date–Ignores Fourier series terms in True of Epoch/Date<strong>AGI</strong>Pg 31 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 and 26: Default CB Ephemeris Settings• Su
Page 27 and 28: Modifying CB ephemeris• Ephemeris
Page 29: Default Moon Attitude• Interpolat
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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