R. Dach et al.: Comparison of MGEX bias products IGS Workshop on GNSS Biases, 05.–06. November 2015, Bern Comparison of MGEX bias products R. Dach 1 , S. Schaer 1,2 , and A. Villiger 1 1 Astronomical Institute, University of Bern, Switzerland 2 Swiss Federal Office of Topographie, swisstopo IGS Workshop on GNSS Biases 05.–06. November 2015, Bern, Switzerland Slide 1 of 26 Astronomical Institute, University of Bern AIUB
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R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Comparison of MGEX bias products
R. Dach1, S. Schaer1,2, and A. Villiger1
1 Astronomical Institute, University of Bern, Switzerland2 Swiss Federal Office of Topographie, swisstopo
IGS Workshop on GNSS Biases05.–06. November 2015, Bern, Switzerland
Slide 1 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Overview
Inventory on IGS MGEX Result Files
Unification of the ISB-Reference
ISB GPS→Galileo
ISB GPS→BeiDou
ISB GPS→QZSS
Applying the ISBs
Summary and Conclusions
Slide 2 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Inventory on IGS MGEX Result Files
A J O J A J O J A J O J A J O2012 2013 2014 2015
C GREC GRCGRECGRECJGREC GRECJ
EJ
GJ
E E E GRE GRE
GE GE
GCGC GREC GRECJ
GREC GRECJ
GRE GRECGRECJ
wum
tum
qzf
grm
gfm
gbm
esm
com
Slide 3 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Inventory on IGS MGEX Result Files
Product directories at CDDIS contains:ftp://cddis.gsfc.nasa.gov/gnss/products/mgex/wwww/
Filename Orbit EOP Coord. Clock Bias
com comwwwwd sp3 erp clk bia
esm esmwwwwd sp3 (snx) clk (bias)gbm gbmwwwwd sp3 erp clk bias
grm grmwwwwd sp3 ssc/snx clk
qzf qzfwwwwd sp3
tum tumwwwwd sp3
wum wumwwwwd sp3 erp clk
ftp://cddis.gsfc.nasa.gov/gnss/products/mgex/dcb/
• yyyy/CAS0MGXRAP yyyyddd0000 01D 01D DCB.BSX.gz• yyyy/DLR0MGXFIN yyyyddd0000 01Y 01D DCB.BSX.gz• MGEXyyyy.bsx.gz and MGEXyyyy all.bsx.gz
Slide 4 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
ISB2 ISB4 ISB5 ISB6 ISB7day n+ 1
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
ISB2 ISB4 ISB5 ISB6 ISB7day n+ 1
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
ISB2 ISB4 ISB5 ISB6 ISB7day n+ 1
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Unification of the ISB-Reference
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
ISB2 ISB4 ISB5 ISB6 ISB7day n+ 1
Slide 5 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (CODE)
−50
−40
−30
−20
−10
0
10
20
30
40
50
Bia
s (c
om)
in n
s
Stations
JAVAD TRE_G2T DELTA JAVAD TRE_G3TH DELTA JAVAD TR_G3TH LEICA GR10LEICA GR25 LEICA GRX1200+GNSS SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR TRIMBLE NETR9
L1X L5X L1 L5
Slide 6 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (CODE)
−50
−40
−30
−20
−10
0
10
20
30
40
50
Bia
s (c
om)
in n
s
Stations
JAVAD TRE_G2T DELTA JAVAD TRE_G3TH DELTA JAVAD TR_G3TH LEICA GR10LEICA GR25 LEICA GRX1200+GNSS SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR TRIMBLE NETR9
L1X L5X L1 L5
WTZZ: JAVAD TRE G3TH DELTA (3.6.2 APR,08,2015) – others with older firmware.
Slide 6 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (GFZ)
−50
−40
−30
−20
−10
0
10
20
30
40
50
Bia
s (g
bm)
in n
s
Stations
JAVAD TRE_G2T DELTA JAVAD TRE_G3TH DELTA JAVAD TR_G3TH LEICA GR10LEICA GR25 LEICA GRX1200+GNSS SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR TRIMBLE NETR9
L1X L5X L1 L5
Slide 7 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (GFZ)
−50
−40
−30
−20
−10
0
10
20
30
40
50
Bia
s (g
bm)
in n
s
Stations
JAVAD TRE_G2T DELTA JAVAD TRE_G3TH DELTA JAVAD TR_G3TH LEICA GR10LEICA GR25 LEICA GRX1200+GNSS SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR TRIMBLE NETR9
L1X L5X L1 L5
WTZZ: JAVAD TRE G3TH DELTA (3.6.2 APR,08,2015) – others with older firmware.
Slide 7 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (GFZ)
−50
−40
−30
−20
−10
0
10
20
30
40
50
Bia
s (g
bm)
in n
s
Stations
JAVAD TRE_G2T DELTA JAVAD TRE_G3TH DELTA JAVAD TR_G3TH LEICA GR10LEICA GR25 LEICA GRX1200+GNSS SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR TRIMBLE NETR9
L1X L5X L1 L5
FAIV, GUAM, KOKV, PALV, PIE1: JAVAD TRE G3TH DELTA, used from legacy
RINEX2 files.
Slide 7 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (CODE−GFZ)
−4
−2
0
2
4
∆Bia
s (c
om−
gfz)
in n
s
Stations
JAVAD TRE_G2T DELTA JAVAD TRE_G3TH DELTA JAVAD TR_G3TH LEICA GR10LEICA GR25 LEICA GRX1200+GNSS SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR TRIMBLE NETR9
L1X L5X (gbm) L1 L5 (gbm)
Slide 8 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (CODE−GFZ)
−4
−2
0
2
4
∆Bia
s (c
om−
gfz)
in n
s
Stations
JAVAD TRE_G2T DELTA JAVAD TRE_G3TH DELTA JAVAD TR_G3TH LEICA GR10LEICA GR25 LEICA GRX1200+GNSS SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR TRIMBLE NETR9
L1X L5X (gbm) L1 L5 (gbm)
CUT0: TRIMBLE NETR9 – accident in GFZ solution for doy 276.
Slide 8 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (CODE−GFZ)
−4
−2
0
2
4
∆Bia
s (c
om−
gfz)
in n
s
Stations
JAVAD TRE_G2T DELTA JAVAD TRE_G3TH DELTA JAVAD TR_G3TH LEICA GR10LEICA GR25 LEICA GRX1200+GNSS SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR TRIMBLE NETR9
L1X L5X (gbm) L1 L5 (gbm)
ZIM3: TRIMBLE NETR9 – only for one day in CODE solution.
Slide 8 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (CODE−GFZ)
−4
−2
0
2
4
∆Bia
s (c
om−
gfz)
in n
s
Stations
JAVAD TRE_G2T DELTA JAVAD TRE_G3TH DELTA JAVAD TR_G3TH LEICA GR10LEICA GR25 LEICA GRX1200+GNSS SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR TRIMBLE NETR9
L1X L5X (gbm) L1 L5 (gbm)
NYA1: JAVAD TRE G3TH DELTA – outlier in CODE solution.
Slide 8 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (CODE)
−4
−2
0
2
4
Bia
s (c
om)
in n
s
180 190 200 210 220 230 240
Day of year 2015
NYA2 (JAVAD TRE_G3TH DELTA): −12.6 +−12.5 ns
Slide 9 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→Galileo per Station (GFZ)
−4
−2
0
2
4
Bia
s (g
bm)
in n
s
180 190 200 210 220 230 240
Day of year 2015
NYA2 (JAVAD TRE_G3TH DELTA): −13.8 +− 0.6 ns
Slide 10 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (CODE)
−50
−40
−30
−20
−10
0
10
20
30
40
50
Bia
s (c
om)
in n
s
Stations
LEICA GR10 LEICA GR25 SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR SEPT POLARXS TRIMBLE NETR9
L1I L7I
Slide 11 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (GFZ)
−50
−40
−30
−20
−10
0
10
20
30
40
50
Bia
s (g
bm)
in n
s
Stations
LEICA GR10 LEICA GR25 SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR SEPT POLARXS TRIMBLE NETR9
L1I L7I
Slide 12 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (CODE−GFZ)
−4
−2
0
2
4
∆Bia
s (c
om−
gfz)
in n
s
Stations
LEICA GR10 LEICA GR25 SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR SEPT POLARXS TRIMBLE NETR9
L1I L7I (gbm)
Slide 13 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (CODE−GFZ)
−4
−2
0
2
4
∆Bia
s (c
om−
gfz)
in n
s
Stations
LEICA GR10 LEICA GR25 SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR SEPT POLARXS TRIMBLE NETR9
L1I L7I (gbm)
CUT0: TRIMBLE NETR9 – accident in GFZ solution for doy 276.
Slide 13 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (CODE−GFZ)
Comparison of the ISB(GPS→BeiDou) for LEICA receivers:
Sta Receiver Antenna GFZ CODE
KOUG LEICA GR10 3.11 LEIAR25.R3 LEIT 15.0 16.9
KRGG LEICA GR10 3.11 LEIAR25.R4 LEIT 11.8 14.1
PADO LEICA GR10 3.10 LEIAR25.R4 NONE 15.2
SCRZ LEICA GR10 3.11 LEIAR10 NONE 16.9 19.2
THTG LEICA GR10 3.11 LEIAR25.R3 LEIT 19.6 21.1
ABMF LEICA GR25 3.11 TRM57971.00 NONE 23.6 25.6
AJAC LEICA GR25 3.11 TRM57971.00 NONE 19.5
GRAC LEICA GR25 3.11 TRM57971.00 NONE 9.1 10.8
MARS LEICA GR25 3.11 TRM57971.00 NONE 23.8
OHI3 LEICA GR25 3.11 LEIAR25.R4 LEIT 19.6 21.6
REYK LEICA GR25 3.11 LEIAR25.R4 LEIT 19.9 22.1
WTZ2 LEICA GR25 3.11 LEIAR25.R3 LEIT 20.8 22.5
WTZR LEICA GR25 3.11 LEIAR25.R3 LEIT 11.1 13.3
All values are given in ns.
Slide 14 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (CODE−GFZ)
Comparison of the ISB(GPS→BeiDou) for LEICA receivers:
Sta Receiver Antenna GFZ CODE
KOUG LEICA GR10 3.11 LEIAR25.R3 LEIT 15.0 16.9
KRGG LEICA GR10 3.11 LEIAR25.R4 LEIT 11.8 14.1
PADO LEICA GR10 3.10 LEIAR25.R4 NONE 15.2
SCRZ LEICA GR10 3.11 LEIAR10 NONE 16.9 19.2
THTG LEICA GR10 3.11 LEIAR25.R3 LEIT 19.6 21.1
ABMF LEICA GR25 3.11 TRM57971.00 NONE 23.6 25.6
AJAC LEICA GR25 3.11 TRM57971.00 NONE 19.5
GRAC LEICA GR25 3.11 TRM57971.00 NONE 9.1 10.8
MARS LEICA GR25 3.11 TRM57971.00 NONE 23.8
OHI3 LEICA GR25 3.11 LEIAR25.R4 LEIT 19.6 21.6
REYK LEICA GR25 3.11 LEIAR25.R4 LEIT 19.9 22.1
WTZ2 LEICA GR25 3.11 LEIAR25.R3 LEIT 20.8 22.5
WTZR LEICA GR25 3.11 LEIAR25.R3 LEIT 11.1 13.3
All values are given in ns.
Slide 14 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (CODE−GFZ)
Comparison of the ISB(GPS→BeiDou) for LEICA receivers:
Sta Receiver Antenna GFZ CODE
KOUG LEICA GR10 3.11 LEIAR25.R3 LEIT 15.0 16.9
KRGG LEICA GR10 3.11 LEIAR25.R4 LEIT 11.8 14.1
PADO LEICA GR10 3.10 LEIAR25.R4 NONE 15.2
SCRZ LEICA GR10 3.11 LEIAR10 NONE 16.9 19.2
THTG LEICA GR10 3.11 LEIAR25.R3 LEIT 19.6 21.1
ABMF LEICA GR25 3.11 TRM57971.00 NONE 23.6 25.6
AJAC LEICA GR25 3.11 TRM57971.00 NONE 19.5
GRAC LEICA GR25 3.11 TRM57971.00 NONE 9.1 10.8
MARS LEICA GR25 3.11 TRM57971.00 NONE 23.8
OHI3 LEICA GR25 3.11 LEIAR25.R4 LEIT 19.6 21.6
REYK LEICA GR25 3.11 LEIAR25.R4 LEIT 19.9 22.1
WTZ2 LEICA GR25 3.11 LEIAR25.R3 LEIT 20.8 22.5
WTZR LEICA GR25 3.11 LEIAR25.R3 LEIT 11.1 13.3
All values are given in ns.
Slide 14 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (CODE−GFZ)
Comparison of the ISB(GPS→BeiDou) for LEICA receivers:
Sta Receiver Antenna GFZ CODE
KOUG LEICA GR10 3.11 LEIAR25.R3 LEIT 15.0 16.9
KRGG LEICA GR10 3.11 LEIAR25.R4 LEIT 11.8 14.1
PADO LEICA GR10 3.10 LEIAR25.R4 NONE 15.2
SCRZ LEICA GR10 3.11 LEIAR10 NONE 16.9 19.2
THTG LEICA GR10 3.11 LEIAR25.R3 LEIT 19.6 21.1
ABMF LEICA GR25 3.11 TRM57971.00 NONE 23.6 25.6
AJAC LEICA GR25 3.11 TRM57971.00 NONE 19.5
GRAC LEICA GR25 3.11 TRM57971.00 NONE 9.1 10.8
MARS LEICA GR25 3.11 TRM57971.00 NONE 23.8
OHI3 LEICA GR25 3.11 LEIAR25.R4 LEIT 19.6 21.6
REYK LEICA GR25 3.11 LEIAR25.R4 LEIT 19.9 22.1
WTZ2 LEICA GR25 3.11 LEIAR25.R3 LEIT 20.8 22.5
WTZR LEICA GR25 3.11 LEIAR25.R3 LEIT 11.1 13.3
All values are given in ns.
Slide 14 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (CODE)
0.0
0.5
1.0
1.5
2.0
σ Bia
s (c
om)
in n
s
Stations
LEICA GR10 LEICA GR25 SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR SEPT POLARXS TRIMBLE NETR9
Slide 15 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→BeiDou (GFZ)
0.0
0.5
1.0
1.5
2.0
σ Bia
s (g
bm)
in n
s
Stations
LEICA GR10 LEICA GR25 SEPT ASTERX3 SEPT POLARX4SEPT POLARX4TR SEPT POLARXS TRIMBLE NETR9
Slide 16 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→QZSS (CODE-MGEX)
−50
−40
−30
−20
−10
0
10
20
30
40
50
Bia
s (c
om)
in n
s
Stations
CH
OF
MA
O0
NY
A2
OU
S2
SIN
0T
AS
HU
LAB
UN
X2
WU
H2
AIR
AC
AS
1C
CJ2
CK
ISC
UT
0F
TN
AG
MS
DJF
NG
KA
RR
KZ
N2
MR
O1
NR
MG
PO
HN
PT
VL
SA
MO
SIN
1S
TK
2T
ON
GT
SK
2U
CA
LW
AR
KX
MIS
JAVAD TRE_G3TH DELTA TRIMBLE NETR9L1X L2X L1C L2X
Slide 17 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→QZSS (GFZ-MGEX)
−50
−40
−30
−20
−10
0
10
20
30
40
50
Bia
s (g
bm)
in n
s
Stations
CH
OF
MA
O0
NY
A2
OU
S2
SIN
0T
AS
HU
LAB
UN
X2
WU
H2
AIR
AC
AS
1C
CJ2
CK
ISC
UT
0F
TN
AG
MS
DJF
NG
KA
RR
KZ
N2
MR
O1
NR
MG
PO
HN
PT
VL
SA
MO
SIN
1S
TK
2T
ON
GT
SK
2U
CA
LW
AR
KX
MIS
JAVAD TRE_G3TH DELTA TRIMBLE NETR9L1X L2X L1C L2X
Slide 18 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
ISB GPS→QZSS (comparson: CODE−GFZ)
0
2
4
6
8
10
∆Bia
s (c
om−
gfz)
in n
s
Stations
CH
OF
MA
O0
NY
A2
OU
S2
SIN
0T
AS
HU
LAB
UN
X2
WU
H2
AIR
AC
AS
1C
CJ2
CK
ISC
UT
0F
TN
AG
MS
DJF
NG
KA
RR
KZ
N2
MR
O1
NR
MG
PO
HN
PT
VL
SA
MO
SIN
1S
TK
2T
ON
GT
SK
2U
CA
LW
AR
KX
MIS
JAVAD TRE_G3TH DELTA TRIMBLE NETR9L1X L2X (gbm) L1C L2X (gbm)
Slide 19 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Mean ISB GPS→Galileo
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
ISB2 ISB4 ISB5 ISB6 ISB7day n+ 1
Slide 20 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Mean ISB GPS→Galileo
• Bias SINEX and clock RINEX files from CDDIS serverdownloaded
• Interval: weeks 1850 to 1859 (June 21 to August 29, 2015)
• Unification of the ISB reference:
day n− 1 ISB2 ISB3 ISB4 ISB5 ISB7
ISB1 ISB2 ISB3 ISB4 ISB5 ISB6 day n
ISB2 ISB4 ISB5 ISB6 ISB7day n+ 1
Slide 20 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Applying the ISBs (GFZ-MGEX)
−10
−5
0
5
10
Mea
n bi
as (
gbm
) in
ns
180 190 200 210 220 230 240
Day of year 2015Original referencing
Slide 21 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Applying the ISBs (GFZ-MGEX)
−10
−5
0
5
10
Mea
n bi
as (
gbm
) in
ns
180 190 200 210 220 230 240
Day of year 2015Unified referencing
Slide 21 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Applying the ISBs (GFZ-MGEX)
−10
−5
0
5
10
Clo
ck E
12 (
gbm
) in
ns
222 224 226 228
Day of year 2015
Slide 22 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Applying the ISBs (GFZ-MGEX)
−10
−5
0
5
10
Clo
ck E
19 (
gbm
) in
ns
222 224 226 228
Day of year 2015
Slide 22 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Applying the ISBs (CODE-MGEX)
−10
−5
0
5
10
Mea
n bi
as (
com
) in
ns
180 190 200 210 220 230 240
Day of year 2015Original referencing
Slide 23 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Applying the ISBs (CODE-MGEX)
−10
−5
0
5
10
Mea
n bi
as (
com
) in
ns
180 190 200 210 220 230 240
Day of year 2015Unified referencing
Slide 23 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Applying the ISBs (CODE-MGEX)
−10
−5
0
5
10
Clo
ck E
12 (
com
) in
ns
222 224 226 228
Day of year 2015
Slide 24 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Applying the ISBs (CODE-MGEX)
−10
−5
0
5
10
Clo
ck E
19 (
com
) in
ns
222 224 226 228
Day of year 2015
Slide 24 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
Summary and Conclusions
• ISB and the related clock corrections have been comparedbetween the CODE– and GFZ–MGEX solutions forGPS→Galileo, GPS→BeiDou, GPS→QZSS.
• High consistency between the sets of ISBs has been confirmed.
• As expected the ISBs are receiver type and firmware dependent.DCBs are observed as well if different observation types havebeen used in the two solutions.
• The ISBs can be used to unify time series of clock corrections.
Slide 25 of 26 Astronomical Institute, University of Bern AIUB
R.Dach
etal.:ComparisonofMGEX
biasproducts
IGSWorkshoponGNSSBiases,
05.–06.November
2015,Bern
THANK YOUfor your attention
Publications of the satellite geodesy research group:
http://www.bernese.unibe.ch/publist
Slide 26 of 26 Astronomical Institute, University of Bern AIUB
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