CONTENTS

Policy on Intellectual Property Right (IPR)
1 Introduction
2 Space operation functions
2.1 Maintenance telemetry
2.2 Telecommand
2.3 Tracking
2.3.1 Spacecraft orbit control system
2.3.2 Surveillance, safety, recovery
2.3.3 Orbital accuracy
2.3.4 Attribution of location data to mission measurements and observations
2.3.5 Publication of ephemeris tables
2.3.6 Remarks
3 Preferred frequency bands
3.1 Lower limits
3.1.1 Ionospheric effects on tracking accuracy
3.1.2 Necessary tracking accuracy effect on choice of frequencies
3.2 Upper limit
3.3 Other factors to be taken into account in choosing frequencies
3.4 Summary of preferred frequency bands
4 Necessary bandwidth
5 Protection criteria
5.1 Protection level of earth station receivers
5.2 Protection ratio of space station receivers
5.3 Reference bandwidth
5.4 Reference percentage of time
5.5 Conclusions on protection criteria
6 Operational aspects
6.1 Use of mission telecommunication bands for space operation
6.1.1 Advantages
6.1.2 Disadvantages
6.2 Use of specific space operation service bands
6.2.1 Advantages
6.2.2 Disadvantages
6.3 Combined use of mission and specific frequency bands
1 Introduction
2 Summary of atmospheric entry plasma effects
3 Summary of rocket exhaust plasma effects