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Bernese GPS Software Version 5.0 - Bernese GNSS Software

Bernese GPS Software Version 5.0 - Bernese GNSS Software

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Created by: ORBGEN (”Menu>Orbits/EOP>Create standard orbits”).<br />

22.7 Orbit Related Files<br />

Used by: Program <strong>GPS</strong>EST (”Menu>Processing>Parameter estimation”) for orbit improvements,<br />

program ADDNEQ2 (”Menu>Processing>Normal equation stacking”) for long arc computation.<br />

Example: Not given. The structure of this file is similar to the standard orbit file (e.g.,<br />

more than one arc per satellite possible).<br />

Only if you want to improve orbits it is necessary to generate an RPR file with the program<br />

ORBGEN. In all other cases the STD files are sufficient for the orbit representation. For<br />

additional information see Chapter 15. The format is binary. To transform it to ASCII and<br />

back to binary (e.g., to allow a transfer to a different computer platform) use the programs<br />

STDFMT and FMTSTD (”Menu>Conversion>Orbit files>Binary to ASCII” and ”Menu>Conversion>Orbit files<br />

>ASCII to binary”) (default extension for the ASCII files: FRP).<br />

22.7.6 Osculating Orbital Elements<br />

Type: ASCII<br />

Directory: Campaign-specific directory ORB.<br />

Extension: ELE<br />

Content: A priori and estimated orbit parameters with formal uncertainties.<br />

Created by: <strong>GPS</strong>EST (”Menu>Processing>Parameter estimation”) and ADDNEQ2 (”Menu>Processing<br />

>Normal equation stacking”).<br />

CODE RAPID 3-DAY SOLUTION, DAY 006, YEAR 2004<br />

ARC-NUMBER = 1 SATELLITE = 1 TOSC= 53010.000000000000<br />

---------------------------------------------------------------------------<br />

A = 26557971.51761 26557971.55062 +- 0.002 ORBSYS 2<br />

E = 0.0054645656 0.0054645660 +- 0.000000000 ORBSYS 2<br />

I = 56.019474336 56.019474292 +- 0.000000003 ORBSYS 2<br />

NODE = 59.373309370 59.373309602 +- 0.000000013 ORBSYS 2<br />

PERIGEE = 262.361971162 262.361953839 +- 0.000000848 ORBSYS 2<br />

ARG. OF LAT (START) = 92.190780531 92.190780460 +- 0.000000006 ORBSYS 2<br />

D0 =-0.424268714D-09-0.593293900D-09 +- 0.71850D-11 T950101B<br />

Y0 = 0.456279704D-10 0.170825507D-09 +- 0.37105D-11 T950101B<br />

X0 =-0.217697936D-09-0.262645556D-09 +- 0.66317D-11 T950101B<br />

DC =-0.229929047D-13-0.501698511D-12 +- 0.14187D-11 T950101B<br />

YC = 0.311597808D-13 0.673652668D-12 +- 0.14217D-11 T950101B<br />

XC =-0.395132643D-09 0.394500404D-10 +- 0.35065D-10 T950101B<br />

DS = 0.298656292D-13 0.405107221D-12 +- 0.14201D-11 T950101B<br />

YS =-0.119236106D-13-0.505329711D-12 +- 0.14219D-11 T950101B<br />

XS =-0.428869929D-09-0.111999774D-09 +- 0.39832D-10 T950101B<br />

ARC-NUMBER = 1 SATELLITE = 2 TOSC= 53010.000000000000<br />

...<br />

*** STOCHASTIC ORBIT PARAMETERS ***<br />

---------------------------------------------------------------------------<br />

ARC-NUMBER = 1 SATELLITE = 1 TOSC= 53010.000000000000<br />

---------------------------------------------------------------------------<br />

1 3 13 53010.50000 0.000000000D+00-0.158574027D-05 0.59113D-06<br />

2 3 13 53010.50000 0.000000000D+00 0.349829131D-05 0.10947D-06<br />

3 3 13 53010.50000 0.000000000D+00 0.208901082D-08 0.14219D-07<br />

ARC-NUMBER = 1 SATELLITE = 3 TOSC= 53010.000000000000<br />

...<br />

Figure 22.22: File of a priori and estimated orbit parameters (ELE file).<br />

<strong>Bernese</strong> <strong>GPS</strong> <strong>Software</strong> <strong>Version</strong> <strong>5.0</strong> Page 507

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