Info
Geometrical distortion of surface as seen from space 87
Gravitational field models 123-129 Horizon of (See Horizon) Illumination of as seen by nearby spacecraft 334 lnertial rotational position of (GST) 802-805
—Irregularities in 805
Infrared appearance of 90-98 Infrared radiation from 82, 90-98 Magnetic field (See Geomagnetic field)
Modeling procedures 82-110
Models of surface shape, table 98 Oblateness—
—Effect on orbit 65-69
—Modeling 98-106
—Term in gravitational potential 124 Orbit of (See also Ecliptic) 44, 4g-51
Path of conical scan on 87,178 Position of relative to Sun, Moon, and planets 138-142
Properties of, table 819-821
Radiation balance, table 82
Radiation from 82-98
Shadow cone of 75
Shape of 99-103
Symbol for 50 Terminator
—Identification 331-334
—Modeling 86-90
Thermodynamic equilibrium of 82
Torque due to reflected sunlight from 571 Visual appearance of 83-87
Earth-in (See In-triggering) Earth-Moon Lagrange points 55
Earth-out (See Out-triggering) Earth referenced spacecraft 605,608-625
Table of characteristics 612
Earth satellites, period vs. altitude table 828 Earth sensor (See also Horizon sensor) Combined Earth/Sun sensor 178-179 Visible vs. infrared 83,169
Earth-width measurement 172,347-349
Density of 348
Error due to unmodeled oblateness 10S Pagoda efTect in 336-339
Earth-width model, for horizon sensors
solutions |
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