Data Analysis Summary of the DORIS weekly SINEX series used in the IDS combination for the realization of ITRF2014 
Sinex Series 
Name 
grgwd40 
gscwd23 
gopwd43 
esawd10 
ignwd15 
inawd08 
Description form 
TBD 
TBD 
TBD 
TBD 
TBD 
TBD 
Analysis Center 
Name 
CNES/CLS 
NASA/GSFC 
GOP 
ESA/ESOC 
IGN 
INASAN 
Contact 
H. Capdeville 
F. Lemoine 
P. Stepanek 
M. Otten 
P. Willis 
S. Kuzin 
Additionnal contacts 
J.M. Lemoine, L. Soudarin 
D. Chinn 
N/A 
N/A 
N/A 
S. Tatevian 
Software 
Name and version 
GINS v 13.2d1 
GEODYN 
Bernese 5.0 (DORIS development version) 
NAPEOS 3.7 
GIPSYOASIS II 
GIPSYOASIS II (v. 6.2) 
SINEX Method (NEQ or COV) 
COV 
NEQ 
COV 
NEQ 
COV 
COV 
Data weights (data reduction) 
0.3 mm/s 
2.0 mm/s (upweighted at NEQ stage, sat by sat basis) 
3 mm (range difference) 
0.5 mm/s 
0.51 mm/s for SPOT2, SPOT3, SPOT4, TOPEX, ENVISAT, CRYOSAT2; 0.4 mm/s for SPOT5, JASON2, HY2A and SARAL 
0.51 mm/s for SPOT2, SPOT3, SPOT4, TOPEX, ENVISAT, CRYOSAT2; 0.4 mm/s for SPOT5, JASON2 
If COV, Station Constraint 
10 m 
N/A 
10 m 
NEQ 
10 m 
10 m 
If COV, EOP Constraint 
15 m 
N/A 
Xp, Yp 500 mas 
NEQ 
5 m 
5 m 
Satellite 
satellites included in weekly SINEX 
startend 
startend 
startend 
startend 
startend 

SPOT2 
03/01/1993  18/07/2009 
03/01/1993  18/07/2009 
03/01/1993  14/07/2009 
03/01/1993  13/07/2009 
03/01/1993  14/07/2009 
03/01/1993  14/07/2009 
SPOT3 
30/01/1994  16/11/1996 
30/01/1994  16/11/1996 
01/02/1994  12/11/1996 
02/02/1994  12/09/1996 
02/02/1994  14/11/1996 
01/02/1994  13/11/1996 
SPOT4 
03/05/1998  22/06/2012 
03/05/1998  31/12/2012 
10/05/1998  22/06/2013 
03/05/1998  24/06/2012 
01/05/1998  18/06/2013 
01/05/1998  23/06/2013 
SPOT5 
16/06/2002  27/12/2014 
16/06/2002  31/12/2012 
16/06/2002  30/08/2014 
17/06/2002  31/12/2013 
11/06/2002  31/12/2013 
11/06/2002  31/12/2013 
TOPEX 
03/01/1993  30/10/2004 
03/01/1993  30/10/2004 
03/01/1993  30/10/2004 
03/01/1993  31/10/2004 
01/01/1993  01/11/2004 
03/01/1993  01/11/2004 
ENVISAT 
21/07/2002  07/04/2012 
21/07/2002  07/04/2012 
21/07/2002  07/04/2012 
21/07/2002  07/04/2012 
11/04/2002  08/04/2012 
02/06/2002  08/04/2012 
JASON1 
31/10/2004  12/07/2008 
31/10/2004  12/07/2008 
N/A 
TBD 
N/A 
N/A 
JASON2 
13/07/2008  27/12/2014 
13/07/2008  31/12/2012 
13/07/2008  30/08/2014 
14/07/2008  31/12/2013 
12/07/2008  31/12/2013 
12/07/2008  31/12/2013 
CRYOSAT2 
20/06/2010  27/12/2014 
20/06/2010  31/12/2012 
30/05/2010  30/08/2014 
30/05/2010  31/12/2013 
30/05/2010  31/12/2013 
30/05/2010  31/12/2013 
HY2A 
02/10/2011  27/12/2014 
TBD 
01/01/2012  30/08/2014 
02/10/2011  31/12/2013 
01/10/2011  31/12/2013 
N/A 
SARAL 
17/03/2013  27/12/2014 
TBD 
N/A 
TBD 
15/03/2013  31/12/2013 
N/A 
Arc cut 
Arc lengths 
3.5 days nominally (minimum 1 day) 
7.0 days, typically 
1 day 
1 day 
1 day 
1 day 
Handle of Manoeuvers 
Break arc and Restart at 12am or 12pm; estimated from 2012/01/01 
Truncate arc before maneuver. Restart 12 hrs afterward. 
daily arc not processed 
Included for all satellites with manoeuvre info, others excluded for that day 
Break arc and start or end at 12:00 
Break arc and start or end at 12:00 
Handle of Data gaps 
Arcs truncated for large data gaps and Restarted. 
Arcs truncated for large data gaps and restarted. 
daily arcs with large data gaps not processed 
Nothing 
daily arcs with large data gaps not processed 
daily arcs with large data gaps not processed 
Additional margins 
6hrs before and 6 hrs after for POD but not in SINEX 
None 
None 
None 
3hrs before and 3 hrs after for POD but not in SINEX 
3hrs before and 3 hrs after for POD but not in SINEX 
Reference System 
Earth reference system 
DPOD2008v12 
DPOD2008v12 
DPOD2008v12 
DPOD2008v12 
DPOD2008 v1.13 
DPOD2008 v1.13 
Celestial reference system 
inertial J2000 
inertial J2000 
inertial J2000 
inertial J2000 
inertial J2000 
inertial J2000 
Polar motion and UT1 
IERS C04 08 
IERS C04 
IERS C04 
IERS C04 08 
IERS Bulletin A 
IERS Bulletin A 
Background C21, S21 

IERS 2010 (Equation 6.5, Petit and Luzum, 2010) 
IERS 2010 Conventions 
IERS 2010 (Equation 6.5, Petit and Luzum, 2010) 
IERS 2003 
IERS 2003 
Pole model 

IERS 2010, (Table 6.6, Petit & Luzum, 2010) 
IERS 2010 Conventions 
IERS 2010, (Table 6.6, Petit & Luzum, 2010) 
IERS 2010 
IERS 2010 
Precession/Nutation 
IERS 2010 using NRO origin 
IERS 2003 
IERS 2003 
IERS 2010 
IERS 2010 
IERS 2010 
Station coordinates 
DPOD2008v12 
DPOD2008v12 
DPOD2008v12 
DPOD2008v12 
DPOD2008 v1.13 
DPOD2008 v1.13 
Displacement of reference points 
Solid Earth tidal displacement 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
Ocean loading 
FES 2012 
GOT4.8 
FES 2004 
EOT11a 
FES 2004 
FES 2004 
Tidal atmospheric loading 
S1/S2 Ray & Ponte (2003) 
none 
N/A 
S1/S2 Ray & Ponte (2003); Also P1, K1; T2, R2. 
not applied 
not applied 
Non tidal atmospheric loading 
none 
not applied 
N/A 
none 
not applied 
not applied 
Solid pole tide displacement 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
Ocean pole tide displacement 
none 
Applied. 
N/A 
not applied 
applied 
applied 
Tidal Geocenter 

Applied, GOT4.7 
N/A 



Satellite reference 
Mass and center of gravity 
initial values and time evolution from IDS files "sat"mass.txt 
Initial values and time history from IDS files. 
Initial values from IDS files 
Initial values and time history from IDS files. 
Initial values and time history from IDS files 
Initial values and time history from IDS files 
Attitude Model 
nominal laws 
Attitude model, generally; Quaternions for offnominal TOPEX arcs; Quaternions for Jason1, Jason2. Ejo/TU Delft quaternions for Cryosat2 
nominal laws, GSC tunned for SPOTs 
nominal laws 
nominal laws 
nominal laws 
Gravity 
Gravity field (static) 
EIGEN6S2 
GOCO02s 
EIGEN6S2 after 2002.0, EIGENGL04S1 before 2002.0 
EIGEN6S2 
EIGEN6S2.extended.v2.gfc 
GOCO2S 
Gravity field (time varying) 
EIGEN6S2 up to degree 95 including time variable terms up to degree 50 (bias & drift per yr from 2002 to 2012, periodic 18.6, 1, 0.5yrs) 
(1) to 5x5  fit to SLR,DORIS time series; (2) > 5x5. Annual terms from GSFCderived GRACE solutions. 
EIGEN6S2 after 2002.0,var. terms up to deg. 50. No harmonic terms before 2002.0 
EIGEN6S2 up to degree 120 including time variable terms up to degree 50 (bias & drift per yr from 2002 to 2012, 1, 0.5yrs) 
from EIGEN6S2.extended.v2.gfc 
(1) to 4x4  fit to SLR,DORIS time series; (2) > 4x4. Annual terms from GSFCderived GRACE solutions 
Solid Earth tides 
IERS 2010 conventions 
IERS 2003 
IERS 2010 conventions 
IERS 2010 conventions 
IERS 2010 
IERS 2010 
Ocean tides 
FES 2012 (32 principal waves, + 60 admittance waves) up to degree 50 
GOT4.8 
FES 2004 
EOT11a up to degree order 50 
FES 2004 
FES 2004 
Atmospheric gravity 
3hr ERAinterim / ECMWF up to degree 50 
ECMWF6hr (Reanalysis) to 50x50 
ECMWF6hr up to 20X20 
AGRA6hr to 20x20 
not applied 
not applied 
Air Tides 

Ray and Ponte (2003), S1, S2; K1, P1, R2, T2 




Non tidal oceanic gravity 
TUGO R12 up to degree 50 TUGO R12 up to degree 50 
N/A 
N/A 
N/A 
not applied 
not applied 
Atmospheric tides 
none (considered through the ECMWF atmospheric data) 
Terms removed from ECMWF fields applied separately 
N/A 
none 
not applied 
not applied 
Earth pole tide 
IERS 2010 conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
Ocean pole tide 
Desai 2002 up to degree 12 
Desai, 2002. Applied to 50x50 
C21, S21 IERS Conventions 2010 
IERS 2010 Conventions 
IERS 2010 Conventions 
IERS 2010 Conventions 
Third bodies 
Sun, Moon, Mars, Venus, Jupiter, Saturn, Uranus and Neptune ephemeris : DE421 (JPL) 
Sun, Moon, Planets: DE403 (JPL) 
Sun, Moon, Major Planets DE405 
Sun, Moon, Planets: DE405 (JPL) 
Sun, Moon, Planets: DE421 (JPL) 
Sun, Moon, Planets: DE421 (JPL) 
Surface forces and empiricals 
Radiation Pressure model 
Thermooptical coefficient from prelaunch box and wing model, with smoothed Earth shadow model; models from CNES document for all satellites except tuned macromodels for Spot2, 3, 4, Jason2 
SPOT2, SPOT3: Macromodel Updated from LeBail et al. (2010); SPOT4: LeBail et al. (2010); SPOT5: Le Bail et al. (2010) + variable solar array pitch modelled after January 2008; Cryosat2: CNES (7plate) macromodel; Jason2: CNES (Modified macromodel); TOPEX: Marshall et al. (1995), Marshall and Luthcke (1994); University of College London (UCL) models for Jason1, and Envisat. 
Thermooptical coefficient from prelaunch box and wing model, with smoothed Earth shadow model; models from CNES document for all satellites except tuned macromodels for Spot2, 3, 4 
CNES model for all satellites except for Jason1/2 (tuned), TOPEX (GSFC values) and Enivsat (ANGARA model) 
CNES model for all satellites except for Jason2 (tuned) and Cryosat2 (modified CNES 7plate macromodel) 
CNES model for all satellites except for Jason2 (tuned) and Cryosat2 (modified CNES 7plate macromodel) 
Radiation pressure scale coefficient 
1 coef/day but strongly constrainted (1. e4) to: 1.03 for Topex; 1.07 for Spot2; 1.07 for Spot3; 1.16 for Spot4; 1.05 for Spot5; 1.05 for Envisat; 0.94 for Jason1, 0.97 for Jason2; 1.00 for Cryosat2; 0.86 for HY2A; 1.00 for Saral 
Cr=1.00 for satellites except, For Jason2: Cr= 0.945; For Envisat Cr=1.0041747; 
1 coeff/day. First iteration without 1rev parameters, in second iteration constrained (1.e1) 
fixed, TOPEX 1.03 SPOT2/3 1.08 SPOT4 0.98 SPOT5 1.04 JASON1 1.0 JASON2 0.98 ENVISAT 0.98 CRYOSAT2 1.0 HY2A 1.0 
fixed: TOPEX 1.03; SPOT2/3 1.08; SPOT4 1.13; SPOT5 1.03; JASON2 0.92; ENVISAT 1.02; CRYOSAT2 1.05; SARAL 1.08; HY2A 0.88 
fixed: TOPEX 1.03; SPOT2/3 1.08; SPOT4 1.13; SPOT5 1.03; JASON2 0.92; ENVISAT 1.02; CRYOSAT2 1.05 
Earth radiation 
Albedo and IR pressure values interpolated from ECMWF 6hr grids 
Knocke et al. (1988) 
apriori model using CERES data 
Monthly mean Albedo and IR maps at 2.5x2.5 degrees 
Albedo correction applied 
Albedo correction applied 
Atmospheric density model 
DTM 94, with best available solar activity 
MSIS86 
MSIS86 
MSIS2000 
DTM94 
DTM2000 
Drag coefficients 
Adjusted; Spots, Envisat, Cryosat2, HY2A, Saral: 1 coef/4 hours (1/1hr in high solar activity periods) ; Topex,Jasons: 1 coef/half day 
Cd/8hrs (TOPEX, Jason1, Jason2); Cd/12 hrs for 800km satellites depending on solar flux. 
adjusted 1 coeff./30 minutes for 800km atellites, 1 coeff./6 hours for others 
TOPEX, Jason 4 a day rest 10 drag coefficients a day 
Cd/8hrs (TOPEX, Jason2); Cd/1hr for SPOT2,3,4,5, ENVISAT, CRYOSAT2, HY2A and SARAL 
Cd/8hrs (TOPEX, Jason2); Cd/1hr for SPOT2,3,4,5, ENVISAT, CRYOSAT2 
1/rev empiricals 
2 coeff cossin /orbital period in normal direction ; 2 coeff cossin /orbital period in tangential direction ; per arc 
Opr/day along+ crosstrack 
Opr/day along (cross not adjusted) 
Opr/day along+ crosstrack 
Opr/day along + crosstrack 
Opr/day along + crosstrack 
DORIS measurements 
Troposphere Model 
GPT2/VMF1 
Saastamoinen 
Saastamoinen 
Saastamoinen 
none 
none 
Weather (meteorological data) 

GPT 
GPT 
GPT 
not used 
not used 
Troposphere mapping function 

GMF 
GMF 
GMF 
VMF1 
GMF 
Troposphere correction 
One zenith delay/pass (wet tropo scale factor adjusted) + one daily tropospheric gradient per station in North & East directions 
Scale factor/pass estimated for wet correction only. 
One zenith delay/pass (wet tropo scale factor adjusted) 
One zenith delay/pass (wet tropo scale factor adjusted) + one daily tropospheric gradient per station in North & East directions 
wet tropospheric delay estimated per station with reset for some passes only if separated by more than 20 minutes 
wet tropospheric delay estimated per station with reset for some passes only if separated by more than 20 minutes 
2nd order ionosphere 
Not applied 
Not applied 
N/A 
Not applied 
Not applied 
Not applied 
Frequency 
1 frequency bias adjusted per pass 
Rangerate bias adjusted/pass; Change in nominal beacon frequency accommodated with modification of partial derivatives. 
1 frequency bias adjusted per pass 
Rangerate bias adjusted/pass; Change in nominal beacon frequency accommodated with modification of partial derivatives. 
1 frequency bias adjusted per station clock if separated by more than 20 minutes + 1 frequency bias per satellite clock (except 1) if separated by more than 20 minutes 
1 frequency bias adjusted per station clock if separated by more than 20 minutes + 1 frequency bias per satellite clock (except 1) if separated by more than 20 minutes 
Relativity 
Schwarzschild model + LenseThirring + geodesic precession 
Schwarzschild model + Lense thirring + geodesic precession 
Schwarzschild model + LenseThirring + geodesic precession 
Schwarzschild model + Lense thirring + geodesic precession 
Schwarzschild model + LenseThirring + geodesic precession 
Schwarzschild model + LenseThirring + geodesic precession 
Weight 
models: 0.3 mm/s; measurements: derived from observation standard deviation in data files 
2 mm/s. upweighted per satellite at NEQ level. 
3 mm (range difference) 
0.5mm/s 
0.51 mm/s for SPOT2, SPOT3, SPOT4, TOPEX, ENVISAT, CRYOSAT2; 0.4 mm/s for SPOT5, JASON2 , HY2A and SARAL 
0.51 mm/s for SPOT2, SPOT3, SPOT4, TOPEX, ENVISAT, CRYOSAT2; 0.4 mm/s for SPOT5, JASON2 
Elevation angle cutoff 
12 degrees 
10 degrees 
10 degrees 
7 degrees 
7 degrees 
12 degrees 
Downweighting law 
Downweighting law for elevation <= 20 deg; Weight of the observation is multiplied by the factor elevation**2/400 with elevation in degrees) 
none 
none 
TBD (currently sin(elevation) after 2002) 
1/sqrt(sin(elevation)) 
1/sin(elevation) 
Satellite system 
Center of mass  antenna phase center vector computed from macro model + attitude law; no phase law applied 
tracking point offset applied using offset information and attitude law and quaternions for spacecraft. 
Center of mass  antenna phase center vector computed from macro model + attitude law; no phase law applied 
Center of mass  antenna phase center vector computed from macro model + attitude law; no phase law applied 
Center of mass  antenna phase center vector computed from macro model + attitude law; no phase law applied 
Center of mass  antenna phase center vector computed from macro model + attitude law; no phase law applied 
Ground system 
Phase centre / reference point vector from manufacturer values; phase law applied (Alcatel, Starec version 2013) 
Phase correction + vertical eccentricity applied in GEODYN or through modification of DPOD2008v12 station coordinates 
Phase centre / reference point vector from manufacturer values; phase law applied (Alcatel, Starec version 2013) 

Phase centre / reference point vector from manufacturer values; phase law applied (Alcatel, Starec) 
Phase centre / reference point vector from manufacturer values; phase law not applied (Alcatel, Starec) 
DORIS System Time Bias 

Model applied for TOPEX/Poseidon derived from SLRDORIS arcs. 
N/A 


no bias correction applied to satellite clock 
South Atlantic Anomaly 
Corrective model for Jason1; corrected measurements for Spot5 from 2006 only 
Corrective model applied for Jason1; Corrective model applied for SPOT5 (2006.0  onward) 
Corrected measurements for Spot5 (2006.0  onward). Jason1 data not used at all 
Corrective model for Jason1; corrected measurements for Spot5 from 2006 only 
Jason1 data not used at all; corrective model applied for SPOT5 (2006.0  onward) . A few stations removed for SPOT5 data (Arequipa, Cachoeira, Easter Island, Kourou) 
Jason1 data not used at all; corrective model applied for SPOT5 (2006.0  onward) 