Bernese GPS Software Version 5.0 - Bernese GNSS Software

22. Data Structure
15 Antenna type(s) (ch*20)
16 Receiver and antenna serial number(s) (6 digits integer).
18 Type of clock correction computed for the receiver clock(s): POLYNOMIAL DEG n,
OFFSET PER EPOCH, or NONE. See option “Clock polynomial degree” in program
CODSPP.
20 Position eccentricities in a local coordinate frame (north,east,up). The transfer programs
store the vector from the marker on the ground to the antenna reference
point (ARP). See file ANTENNA.GRA in the directory ${X}/GEN for the definition
of the ARP for various antenna types. This file may also be downloaded from
ftp://ftp.igs.org/. Usually the eccentricities in north and east direction are zero
and the third eccentricity (up) is equal to the antenna height.
22 List (lines 23–26) of the satellite numbers, and the number of good and marked
observations for each satellite (L1 or L1&L2).
29 List (lines 30–43) of ambiguities (only present in the case of a phase header file) containing
the ambiguity number, the satellite number, the start epoch of the ambiguity,
the wavelength factor(s) for one or both frequencies, the value of the ambiguities
within the corresponding cluster, and the ambiguity cluster number. If two frequencies
are available the widelane ambiguity (L5) is stored (together with its cluster
number), too, independently of the L1 and L2 ambiguities. If two ambiguities of the
same frequency belong to the same ambiguity cluster (i.e., they have the same cluster
number), they are resolved relative to each other (as double-difference ambiguity).
See Chapter 8 for more details concerning ambiguities.
46ff List of all the observations, where you find the following values:
• Internal observation number (used as reference)
• Observation time (full seconds only)
• Epoch flag (provided by the RINEX format, e.g., for power failure) (F)
• Number of satellites observed at this epoch (#S)
• For each satellite observed:
– observation (in meters)
– two flags possible (FF):
S: cycle slip
M: marked observation
– signal/noise ratio (S)
– PRN-number (SA)
• Date of observation
• Clock parameter for station 1 (sec):
– Zero-difference files: fractional second of observation epoch
– Single-difference files: sum of fractional second of observation epoch + clock
correction to GPS time for station 1
• Clock parameter for station 2 (sec):
– Zero-difference files: clock correction to GPS time for current epoch
– Single-difference files: sum of fractional second of observation epoch + clock
correction to GPS time for station 2
The L2-observations follows in the next line (if available).
59ff A blank line is inserted into the formatted file whenever one or more observation
epochs are missing or if the satellite constellation changes. Blank lines between the
observations will be removed when the file will be transformed back into a binary file.
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