11.07.2015 Views

DISCOVER ANALYSIS & VISUALIZATION WITH STK - AGI

DISCOVER ANALYSIS & VISUALIZATION WITH STK - AGI

DISCOVER ANALYSIS & VISUALIZATION WITH STK - AGI

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✓ ✓✓✓ ✓✓ ✓✓ ✓✓ ✓✓ ✓✓ ✓✓ ✓✓✓✓✓ ✓✓✓✓ ✓✓✓ ✓✓ ✓✓✓✓✓✓✓✓✓✓✓✓✓ ✓✓ ✓✓✓✓✓✓✓✓✓✓✓ ✓<strong>STK</strong><strong>STK</strong>/PROFEATURE OVERVIEW OF <strong>STK</strong> ANDORBIT PROPAGATIONJ2, J4, SGP4, Two-BodySupport for plug-in propagatorsBallistic propagatorGreat arc flight- and ground-path waypoint generationPlanetary ephemerisOrbit Wizard for quick creation of satellites with common orbits.Ability to import external ephemeris dataMultiple gravitational models—WGS84, EGM96, GEMT1, JGM2, JGM3, customSPICE propagatorLifetime tool for modeling atmospheric drag effects over satellite lifeHigh-Precision Orbit Propagator (HPOP)Long-term Orbit Predictor (LOP)COORDINATE SYSTEMSFixed, J2000, B1950, Mean Equinox True Equator, True of Reference DateMean of Date, Mean of Epoch, True of Date, True of Epoch, Mean Equinox True EquatorVector Geometry Tool (VGT)—custom coordinate systems, axes, vectors, angles, and pointsCOORDINATE TYPESClassical and CartesianEquinoctial, Delaunay variables, mixed spherical, sphericalATTITUDE PROFILESNadir alignment with ECI or ECF velocity constraintExternal attitude fileNadir alignment with sun constraintNadir alignment with orbit normal constraintSun alignment with nadir, ecliptic normal, ECI Z-axis, occultation normal, or Z in-orbit plane constraintECI velocity alignment with nadir or sun-constraintECF velocity alignment with radial constraintXPOP inertial attitudeYaw to nadirSpinning, precessing spin, spin about nadir, or spin about sun vectorInertially fixedTarget pointing attitudeIntegrated attitudeVISIBILITY <strong>ANALYSIS</strong>Visualization of visibility periods—highlighted ground track, access lines, timeline graphsField of view, elevation angle, azimuth angle, range and range rate, angular rate, and lighting constraintsTemporal constraints—duration, intervals, local, GMT, and local apparent timeBeta angle constraintGrazing angle, grazing altitude, height above horizon constraintsAzimuth rate, elevation rate, altitude constraintsPropagation delay constraintCross-track and in-track range; squint angle constraintsSolar and lunar constraints—elevation angles, exclusion angles, and obstructionExclusion zone constraintsMATLAB ® , VBScript, or Perl plug-in constraintsUser-defined vector constraints

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