Info

Target Altitude

Aflr(km)

ART/ tan £

Toward nadir

S/C Clock

A7(s)

AT Ve cos {lat)C>

AT(Vei D)cos(lat) •sin J*7)

Parallel to Earth's equator

Notes:

(1) Includes attitude determination error. Instrument mounting error, stability over exposure time (mapping only), and control error (pointing only). The formulas given assume that the attitude is measured with respect to the Earth.

(4) Vg = 464 m/s (Earth rotation velocity at the equator).

(5) cos Vj = cos 0 sin rj.

0 0

Post a comment