1
Introduction

2 Percentage
of time and maximum duration for a low-orbiting spacecraft occupying a defined
region

2.1 Bounding
equation for percentage of time spacecraft is in defined region

2.2 The
maximum time a satellite spends in the beam of a ground station

3 Probability
density function pdf of the position of a low-orbiting satellite on the orbit
shell

3.1 Probability
density function of interference to low-orbiting satellites caused by emissions
from FS systems

3.2 Probability
density function of interference to FS systems caused by emissions from
low-orbiting satellites

4 Simplified
methods for calculating visibility statistics

4.1 Simplified
method for circular antenna beams

4.2 Manual
method to calculate visibility statistics

4.3 Comparison
of the numerical results obtained using the simplified and manual methods for
circular antenna beams

5 Means
of calculating the coordinates of the intersection of two orbital planes

5.1 Analysis