|
Size: 592
Comment:
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Size: 828
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 9: | Line 9: |
| Density at 80 km is | || Altitude || Density || Scale Height || || km || kg/m3 || km || || 80 km || 1.85e-5 || 6.33 || || 70 km || 8.28e-5 || 7.14 || || 60 km || 3.10e-4 || 8.02 || || 50 km || 1.03e-3 || 8.14 || |
Track Slope
Assume a maximum exit velocity a little larger than Earth escape (11.2 km/s) at 6458 km radius, 80 km altitude, near the equator. At that radius, the Earth's rotation velocity is 0.47 km/s ( 2π × 6458 km / 86414s ), so the maximum atmosphere-relative velocity (ignoring wind and adding drag loss) is 10.8 km/s. We will compute track slope backwards from that.
Loop inclination - the angle to the equator - will probably be between 10 and 30 degrees, To Be Determined.
Atmosphere Density Model
Altitude |
Density |
Scale Height |
km |
kg/m3 |
km |
80 km |
1.85e-5 |
6.33 |
70 km |
8.28e-5 |
7.14 |
60 km |
3.10e-4 |
8.02 |
50 km |
1.03e-3 |
8.14 |