Bernese GNSS Software Version 5.2 Tutorial

4 Terminal Session: Tuesday...*******************************************************************************SUMMARY OF BAD OBSERVATIONS*******************************************************************************MAXIMUM RESIDUAL DIFFERENCE ALLOWED : 30.00 MCONFIDENCE INTERVAL OF F*SIGMA WITH F: 5.00NUMBER OF BAD OBSERVATION PIECES : 3NUMB FIL STATION TYP SAT FROM TO #EPO-------------------------------------------------------------------------------1 8 TLSE 10003M009 OUT 1 10-07-26 15:10:00 10-07-26 15:28:30 382 8 TLSE 10003M009 OUT 1 10-07-26 15:32:30 10-07-26 15:33:00 23 12 ZIM2 14001M008 OUT 26 10-07-26 20:08:30 10-07-26 20:08:30 1-------------------------------------------------------------------------------*******************************************************************************GLONASS/GPS TIME OFFSETS*******************************************************************************FILE STATION NAME TIME OFFSET (NS) RMS ERROR (NS)-----------------------------------------------------------1 GANP 11515M001 NO RESULTS AVAILABLE2 HERT 13212M010 NO RESULTS AVAILABLE3 JOZ2 12204M002 NO RESULTS AVAILABLE4 LAMA 12209M001 NO RESULTS AVAILABLE5 MATE 12734M008 NO RESULTS AVAILABLE6 ONSA 10402M004 NO RESULTS AVAILABLE7 PTBB 14234M001 NO RESULTS AVAILABLE8 TLSE 10003M009 NO RESULTS AVAILABLE9 WSRT 13506M005 NO RESULTS AVAILABLE10 WTZR 14201M010 NO RESULTS AVAILABLE11 WTZZ 14201M014 NO RESULTS AVAILABLE12 ZIM2 14001M008 NO RESULTS AVAILABLE13 ZIMM 14001M004 NO RESULTS AVAILABLE-----------------------------------------------------------0 TOTAL 0.000 0.000-----------------------------------------------------------The most important message in the output file is CLOCK OFFSETS STORED INCODE+PHASE OBSERVATION FILES. This indicates that the receiver clock correctionscomputed by CODSPP are stored in code and phase observation files. After this step wewill no longer use the code observations in this example.The a posteriori RMS error (for each zero difference file processed) should be checked in theCODSPP output file. A value of about 20–30 m is normal if Selective Availability (SA) —artificial degradation of the satellite clock accuracy — is on (before May 2000). WithoutSA a value of about 3 m is expected if P–code measurements are available (this is the casefor the time interval of the processing example). However, much worse code measurementswould still be sufficiently accurate to compute the receiver clock corrections with thenecessary accuracy of 1µs .In the section GLONASS/GPS TIME OFFSETS you may only find the inter–system bias(ISB) for each of the receivers as they have been estimated by CODSPP if both, GPS andGLONASS satellite clock corrections were introduced.Page 34AIUB