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Bernese GPS Software Version 5.0 - Bernese GNSS Software

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22.8 Station Related Files<br />

* ATTITUDE FILE OF CHAMP 0003902 FOR DOY 150-2001 24-JUN-03 17:01<br />

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

* Data derived from ${K}/JASON/ORB/CHA01150 12.AUX<br />

* MJD attitude rotation matrix<br />

* Part of MJD first row<br />

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

52059.<br />

0.00000000000000 0.04616420851114 -0.48525053457856 0.87315564740210 -0.04845498091011 ...<br />

0.00011574073869 0.05591995226978 -0.48442487681705 0.87304381199357 -0.04250661535403 ...<br />

0.00023148148466 0.06569138988084 -0.48360788229990 0.87281616478788 -0.03654388796433 ...<br />

0.00034722222335 0.07547242410888 -0.48279728443165 0.87247389379643 -0.03057827702533 ...<br />

0.00046296296205 0.08520095043148 -0.48199448618883 0.87202185370906 -0.02459677408861 ...<br />

... ... ... ... ... ...<br />

Figure 22.29: Satellite attitude file from program LEOAUX.<br />

22.7.13 Satellite Attitude for LEOs<br />

Type: ASCII<br />

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

Extension: ATT<br />

Content: Satellite attitude information.<br />

Created by: Program LEOAUX or original CHAMP or JASON attitude files.<br />

Used by: CODSPP, MAUPRP, <strong>GPS</strong>EST, <strong>GPS</strong>SIM.<br />

Example: Figure 22.29.<br />

The attitude information provides the transformation from the LEO satellite body fixed<br />

coordinate system to inertial (J2000). The reading routine ${LG}/READATT.f90 may read<br />

original attitude files from CHAMP and JASON, or these LEO satellite information may<br />

be converted into <strong>Bernese</strong> format using program LEOAUX. The program has to be executed<br />

with the command RUN<strong>GPS</strong> (see Section 18.8). The <strong>Bernese</strong> file is composed of a header<br />

including the integer MJD of the first epoch and of a data section containing the fractional<br />

day (column 1) and the attitude rotation matrix elements ordered by row (columns 2–9).<br />

Attitude for <strong>GPS</strong> and GLONASS satellites is hard-wired in the code.<br />

22.8 Station Related Files<br />

The station related file types, explained in this section, are listed in Table 22.4.<br />

22.8.1 Session Table<br />

Type: ASCII, menu input file format<br />

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

Extension: SES<br />

Content: Time interval covering all observations which should be processed together.<br />

Program input panel format.<br />

Created by: The file is copied to the campaign during the campaign setup (”Menu>Campaign<br />

>Create new campaign”). Edit the file using ”Menu>Campaign>Edit session table”.<br />

Used by: All programs.<br />

Example: Figure 3.1 and ${X}/SKL/SESSIONS.SES.<br />

<strong>Bernese</strong> <strong>GPS</strong> <strong>Software</strong> <strong>Version</strong> <strong>5.0</strong> Page 513

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