Remote Synchronization Experiments for Quasi-Zenith Satellite System Using Multiple Navigation Signals as Feedback Control

Table 1

Assumptions in calculations.

Condition of orbit and delay calculation	No error (for UDS2 and QSIM2)	Error (for RCST and QZSSREC)
Navigation signals used for feedback		Single frequency	Multiple frequency
Initial condition of orbit calculation (ICRF)	𝑥=−23342012.770 m	𝑥=−23342007.770 m
	𝑦=−33282936.570 m	𝑦=−33282931.570 m
	𝑧=15995302.769 m	𝑧=15995307.7695 m
	𝑣𝑥=2184.551 m/s	𝑣𝑥=2184.551 m/s
	𝑣𝑦=−935.546 m/s	𝑣𝑦=−935.546 m/s
	𝑣𝑧=1774.093 m/s	𝑣𝑧=1774.093 m/s
Gravity potential model	EGM96, 360 degree, 360 order
Other bodies	Moon, Sun, Mercury, Venus, Mars, Jupiter, Saturn,; Uranus, Neptune, Pluto
Solar radiation pressure model	Cr model, Cr = 1.2, 30 m^2
Solid tide effect	considered
Satellite mass	1816 Kg
Ionospheric delay	Code data are used		Not considered
Tropospheric delay	Saasamoinen, tempreature 15°C, pressure 1013.25 hPa, humidity 70%		Not considered
Relativity effect	considered		Not considered
Simulation period	1999/12/31 23:59:47–2000/01/01 23:59:47
Observed position	Okinawa (26.5 N, 127.9 E, 0.0 m geodetic height)