| Output/Visualization |
Design |
Engineer |
Mission |
| Full 2D and 3D visualization with customizable view points |
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| Customizable view points |
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| Custom/user defined XY plots, polar plots |
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| Custom/user defined ASCII reports |
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| Monitor window for "strip chart" type data |
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| Watch window for real-time constraint checking |
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| Over 1300 parameters available for reporting and plotting |
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| Ground station masking and sensor swaths |
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| 3D Proximity Zone for station keeping/relative motion visualization |
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| Spacecraft Modeling |
Design |
Engineer |
Mission |
| Full mass properties definition |
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| Sensors (see sensor features for more information) |
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| Tanks (spherical, interpolated, or electrical) |
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| Thrusters (mono-propellant, bi-propellant, ion) |
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| Antennas (conical FOV) |
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| Antennas (irregular polygon FOV, obscuration masking) |
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| Transceivers |
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| Collision avoidance calculations (Proximity Zones) |
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| Multi-spacecraft |
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| Formation modeling |
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| Sensors |
Design |
Engineer |
Mission |
| Simple conic |
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| Complex conic, irregular polygon, rectangular |
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| Obscuration masking |
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| Scanning sensor |
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| Custom/user-defined sensor patterns |
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| Attitude |
Design |
Engineer |
Mission |
| LVLH (nadir pointing with orbit-normal constraint), Mean of J2000 Earth Equator, Geodetic (geodetic pointing with orbit-normal constraint) |
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| User defined / Custom Coordinate Systems |
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| Euler angles |
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| Quaternion, Attitude matrix, Spinner |
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| Target pointing attitude |
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| Attitude history file (AHF) |
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| Maneuvers |
Design |
Engineer |
Mission |
| Impulsive maneuvers |
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| Finite maneuvers |
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| Maneuver targeting/optimization |
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| Orbit Propagation |
Design |
Engineer |
Mission |
| Fixed or Variable Step (step size is user definable) |
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| Runge Kutta 4(5), VOP, Two Body, NORAD/SGP4 |
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| Runge Kutta 7(8), 8(9), Bulirsch Stoer, J2 Mean Elements |
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| Use Air Force Space Command supplied SP & SGP4 DLL |
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| Planetary ephemeris (DE200 or DE405) |
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| SPICE ephemeris |
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| Atmospheric drag/lift, Solar radiation pressure |
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| Atmospheric density - Analytic |
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| Atmospheric density - Jacchia Roberts, Harris Priester |
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| Earth potential & Moon potential up to 100x100 |
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| NORAD two line elements (TLEs), FreeFlyer ephemeris/state, STK ephemeris/state |
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| User-defined ephemeris/state |
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| Orbit Calculations |
Design |
Engineer |
Mission |
| Over 150 orbit/trajectory parameters calculated at each integration step |
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| Unlimited user defined parameters using embedded math libraries or MATLAB connection |
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| Dynamic real-time feedback available during each run |
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| Ground Station Modeling |
Design |
Engineer |
Mission |
| User defined location and masking or read from geodetics file |
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| Station bias parameters |
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| Station antenna parameters |
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| Ground Network Modeling |
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| Visibility/Access Analysis |
Design |
Engineer |
Mission |
| Visibility period calculations between any objects (s/c to s/c, s/c to ground station, s/c to ground region, etc.) |
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| Field of view, elevation angle, azimuth angle, range & range rate |
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| Solar and lunar constraints /Lighting constraints / Beta angle constraints |
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| Temporal constraints (interval, duration, GMT, mean local time) |
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| Cross track, along track, range, and all associated rates |
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| AOS/LOS |
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| Sensor to sensor, sensor to s/c, sensor to ground station constraints |
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| Sensor tracking |
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| Magnetic field regions |
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| Celestial object interference (all planets & star catalog) |
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| Rapid performance coverage analysis for coverage and revisit statistics |
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| Rapid performance close approach analysis |
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| Logic Control |
Design |
Engineer |
Mission |
| Logic engine to control actions based on any calculated parameter |
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| Full-featured Scripting Language |
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| For, If , While, Pause, Stop, Achieve, Target, Vary commands |
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| Fuzzy logic engine for conflicting constraint resolution |
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| Orbit Determination |
Design |
Engineer |
Mission |
| Extended Kalman Filter, Batch Least Squares |
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| Orbit Determination error analysis |
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| Tracking Data filtering |
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| Ground based range/ range rate/ azimuth/ elevation tracking data |
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| TDRS tracking two-way range/ two-way Doppler tracking data |
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| GPS tracking data |
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| Spacecraft X, Y, Z, Vx, Vy, Vz, Cd, Cr, Transponder delay Solve-fors |
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| Ground station location, antenna bias Solve-fors |
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| Coordinate System Types |
Design |
Engineer |
Mission |
| Mean of J2000 Earth Equator/Earth Ecliptic, True of Date Earth Equator, NORAD |
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| Launch Vehicle Coordinates (user definable to ELV vendor specs) |
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| Cartesian, Keplerian/nonsingular Keplerian, Spherical/Spherical Lat/Long |
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| True Equator Mean Equinox, Equinoctial, Brouwer-Lyddane Mean/ J2 Brouwer-Lyddane, Mean of 1950 |
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| Conversion functions to convert between systems |
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| User defined / Custom Coordinate System |
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| External Interfaces |
Design |
Engineer |
Mission |
| MATLAB interface |
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| TCP/IP socket interface |
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| SQL 92 database compliant interface |
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| Run command to spawn external applications |
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| Customizable graphic user interface (GUI) |
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| Generic ASCII & Binary File Reader |
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| Automatic e-mail notification based on user defined rules |
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| Links to External Code |
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| Usability/User Interface |
Design |
Engineer |
Mission |
| Drag & Drop Mission Design Sequence |
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| Wizards and samples for quick problem set up |
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| Ephemeris browser and compare utilities |
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| Batch run/Command Line capability |
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| Fuzzy set designer for fuzzy logic problem set-up |
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| Miscellaneous |
Design |
Engineer |
Mission |
| Independently validated and verified |
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| On-line help files with context sensitive searching |
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| Automated parametric studies |
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| Monte-Carlo analysis |
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| Unlimited window tiling output for dynamic user feedback |
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| Any parameter can be set/reset real-time during runs |
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