Page 193 - Intro to Space Sciences Spacecraft Applications

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Introduction to Space Sciences and Spacecraft Applications
trated in Table 8-5. Sun incidence angle is selected by the designer to
reflect the maximum incidence angle the solar panel will experience. If
the solar panels are sun-tracking, the incidence angle is usually set near
zero. The final result is the determination of BOL and EOL power and
power subsystem mass.

Table 8-5
S/C Eclipse Times Based on Altitude

Circular Orbit Solar Eclipse
Altitude (km) Times (minutes)
200 37.3
250 36.9
300 36.6
350 36.3
400 36.1
450 35.9
500 35.8
600 35.5
700 35.3
800 35.1
900 35
1,000 34.9
1,500 34.8
2,000 35
2,500 35.4
3,000 35.9
3,500 36.4
4,000 36.9
4,500 37.5
5,000 38.1
6,000 39.4
7,000 40.6
8,000 41.8
9,000 43.1
10,000 44.3
15,000 50
20,000 55.2
25,000 60.1
30,000 64.6
35,786 69.4