GLONASS Broadcast Orbit Computation

GPS Solutions ◽  
1998 ◽  
Vol 2 (2) ◽  
pp. 16-27 ◽  
Author(s):  
Mike Stewart ◽  
Maria Tsakiri
Keyword(s):  
Broadcast Orbit ◽  
Orbit Computation

Artificial satellite orbit computations

1966 ◽  
Vol 25 ◽  
pp. 363-371
Author(s):  
P. Sconzo
Keyword(s):  
Artificial Satellite ◽  
Satellite Orbit ◽  
Artificial Satellites ◽  
Orbital Elements ◽  
Differential Correction ◽  
Gravitational Effects ◽  
Short Intervals ◽  
The Subject ◽  
Introductory Discussion ◽  
Orbit Computation

In this paper an orbit computation program for artificial satellites is presented. This program is operational and it has already been used to compute the orbits of several satellites.After an introductory discussion on the subject of artificial satellite orbit computations, the features of this program are thoroughly explained. In order to achieve the representation of the orbital elements over short intervals of time a drag-free perturbation theory coupled with a differential correction procedure is used, while the long range behavior is obtained empirically. The empirical treatment of the non-gravitational effects upon the satellite motion seems to be very satisfactory. Numerical analysis procedures supporting this treatment and experience gained in using our program are also objects of discussion.

Orbit computation with the Vinti potential and universal variables

1970 ◽  
Vol 7 (4) ◽  
pp. 405-408 ◽  
Author(s):  
BASSFORD C. GETCHELL
Keyword(s):  
Orbit Computation

ORBIT COMPUTATION SYSTEM FOR “IRS”

1989 ◽  
pp. 103-110
Author(s):  
P. Rajendra prasad ◽  
S.Venkateswara rao ◽  
Ananth Krishna ◽  
P. Padmanabhan ◽  
M.G. Chandrasekhar
Keyword(s):  
Orbit Computation

Orbit Computation

2006 ◽  
pp. 63-72
Author(s):  
Andreas Alzner
Keyword(s):  
Orbit Computation

Automatic orbit computation for visual binaries.

1962 ◽  
Vol 67 ◽  
pp. 599 ◽  
Author(s):  
R. Wielen
Keyword(s):  
Orbit Computation ◽  
Visual Binaries

scholarly journals Analysis of Factors Affecting Asynchronous RTK Positioning with GNSS Signals

2019 ◽  
Vol 11 (10) ◽  
pp. 1256
Author(s):  
Shu ◽  
Liu ◽  
Feng ◽  
Xu ◽  
Qian ◽  
...  
Keyword(s):  
Satellite Orbit ◽  
Latency Time ◽  
Short Baseline ◽  
Factors Affecting ◽  
Broadcast Ephemeris ◽  
Geo Satellites ◽  
Short Baselines ◽  
Broadcast Orbit ◽  
Different Characteristics ◽  
Clock Offset

For short baseline real-time kinematic (RTK) positioning, the atmosphere and broadcast ephemeris errors can be usually eliminated in double-differenced (DD) processing for synchronous observations. However, in the case of possible communication latency time, these errors may not be eliminated in DD treatments due to their variations during latency time. In addition, the time variation of these errors may present different characteristics among GPS, GLONASS, BDS, and GALILEO due to different satellite orbit and clock types. In this contribution, the formulas for studying the broadcast orbit and clock offset errors and atmosphere error in asynchronous RTK (ARTK) model is proposed, and comprehensive experimental analysis is performed to numerically show time variations of these errors and their impacts on RTK results from short-baselines among four systems. Compared with synchronous RTK, the degradation of position precision for ARTK can reach a few centimeters, but the accuracy degradation to a different degree by different systems. BDS and Galileo usually outperform GPS and GLONASS in ARTK due to the smaller variation of broadcast ephemeris error. The variation of broadcast orbit error is generally negligible compared with the variation of broadcast clock offset error for GPS, BDS, and Galileo. Specifically, for a month of data, the root mean square (RMS) values for the variation of broadcast ephemeris error over 15 seconds are 11.2, 16.9, 7.3, and 3.0 mm for GPS, GLONASS, BDS, and Galileo, respectively. The variation of ionosphere error for some satellites over 15 seconds can reach a few centimeters during active sessions under a normal ionosphere day. In addition, compared with other systems, BDS ARTK shows an advantage under high ionosphere activity, and such advantage may be attributed to five GEO satellites in the BDS constellation.

A comparison of five algorithms for numerical orbit computation in galaxy models

1978 ◽  
Vol 18 (3) ◽  
pp. 277-286 ◽  
Author(s):  
K. A. Papp ◽  
K. A. Innanen ◽  
A. T. Patrick
Keyword(s):  
Numerical Orbit ◽  
Orbit Computation

Generalized Multistep Methods in Satellite Orbit Computation

1968 ◽  
Vol 15 (4) ◽  
pp. 712-719 ◽  
Author(s):  
James Dyer
Keyword(s):  
Multistep Methods ◽  
Satellite Orbit ◽  
Orbit Computation

Inverse methods for asteroid orbit computation

2010 ◽  
Vol 45 ◽  
pp. 231-236
Author(s):  
D.A. Oszkiewicz ◽  
K. Muinonen ◽  
J. Virtanen ◽  
M. Granvik ◽  
T. Pieniluona
Keyword(s):  
Inverse Methods ◽  
Orbit Computation ◽  
Asteroid Orbit
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