Subject: [IGSMAIL-263] IGS site information and coordinates
From: Claude Boucher and Zuheir Altamimi
Date: 27 MAY 1993 08:53:40

***********************************************************************
IGS Electronic Mail       27-MAY-1993 08:53:40       Message Number 263
***********************************************************************

From:    Claude Boucher and Zuheir Altamimi
Subject: IGS site information and coordinates
         ------------------------------------

       Dear Colleagues,

       Please find enclosed the following 2 tables:

Table 1: IERS/IGS station eccentricities. This is an updated version of 
         Table 1 sent on 9-SEP-1992 in IGS Mail #90. The updates of this 
         Table (since the IGS Mail #90) are :
         - local tie of Hartebeesthoek and Graz
         - the sign of the 3 components of Orroral local tie
         - the Ashtech antenna height of Vandenberg 
         - the Rogue antenna height of Pamatai
         - the Rogue antenna height of Ny-Alesund
         - new sites were added

Table 2: IERS/IGS station coordinates. This Table contains the coordinates
         set SSC(IERS) 93 C 01 (epoch 1992.6) which was presented at the 
         IGS Workshop in Bern and was briefly described in IGS Mail #236.
         It should be noted that this set of coordinates is an improved one
         with regards to the previous set published in the IGS mail #90.

Regards

Claude Boucher and Zuheir Altamimi

Institut Geographique National
2 avenue pasteur
B. P. 68
94160 Saint Mande
France

E-mail : [email-masked] or [email-masked]
        or
         [email-masked] or [email-masked]
SPAN   : IAPOBS::BIHTERRE
Phone  : (33) 1 43 98 82 09
Fax    : (33) 1 43 98 84 50
Telex  : 261 631 F

TABLE 1 : IERS/IGS station eccentricities

Release : 26-MAY-1993

-------------------------------------------------------------------------------
Site          Abbr CDP  DOMES  SLR/  GPS  -------- Local Tie -------  Ant.  RCV
Name                No   No    VLBI  Mark  deltaX   deltaY   deltaZ  Height
-------------------------------------------------------------------------------
Tromsoe       TROM 7602 10302  M002  M003   36.288  -33.115   -9.215  2.473 ROG
Ny-Alesund    NYAL      10317        M001                             5.216 ROG(*)
Honefoss      HONE      10325        M001                             3.947 ROG
Onsala        ONSA 7213 10402  S002  M004   52.631  -40.464  -43.865  0.995 ROG
Metsahovi     METS 7601 10503  M002  S011 1918.188 1548.001-1324.627  0.000 MRG
Graz          GRAZ 7839 11001  S002  M002   -2.559    8.516   -1.321  2.068 ROG
Matera        MATE 7939 12734  S001  M008  -15.173  -24.827   24.965  0.135 ROG
Herstmonceux  HERS 7840 13212  S001  M007    6.505   10.278   -3.945  0.200 MRG
Madrid        MADR 1565 13407  S010  S012 -134.246  159.664  164.275  0.000 ROG
Kootwijk      KOSG 8833 13504  M002  M003  -12.461  -37.503   23.024  0.105 ROG
Zimmerwald    ZIMA 7810 14001  S001  M002    8.448   -0.168   -3.993  0.000 P12
Zimmerwald    ZIMM 7810 14001  S001  M004   13.680    6.012   -6.242  0.000 SSP
Wettzell      WETT 7224 14201  S004  S020   38.697  117.417  -59.322  0.000 ROG
Bar Giyyora   BARG 7530 20702  M001  M002                                   SST
Usuda origi   USUD 7246 21729  S001  S003                             0.000 ROG
Usuda displa  USU2 7246 21729  S001  S005                             0.000 ROG
Usuda current USU3 7246 21729  S001  S007                             0.000 ROG
Tsukuba       TSUK 7311 21730  S001  S004   -9.814  -31.622   27.107  0.000 MMC
Taipei        TAIW      23601        M001                             1.766 MRG
HartebeesthoekHART 7232 30302  S001  M002 -817.332 2103.129  203.079  9.754 ROG
Maspalomas    MASP      31303        M001                             0.122 MRG
St. Johns     STJO      40101        M001                             0.162 ROG
Prince Albert PRAL      40103        M001                                   ROG
Algonquin     ALGO 7282 40104  S001  M002   94.763   61.017    6.666  0.114 ROG
Penticton     DRAO 7283 40105  M001  M002 -324.180  178.052   11.636  0.118 ROG
Calgary       PRDS      40124        M001                                   ROG
Yellowknife   YELL 7285 40127  M001  M003 -327.848  314.599   82.882  0.117 MRG
Victoria      PGC1 7289 40129  M001  M002                             1.235 ROG
Albert Head   ALBH 7289 40129  M001  M003                             0.118 ROG
Pasadena      JPL1 7263 40400  M003  M006    1.987  -18.063  -22.052  0.093 ROG
Pasadena  PEQ JP1Q 7263 40400  M003  M007                             0.093 ROG
Goldstone     GOLD 7288 40405  M013  S028 2880.020 5222.261 8549.860  0.000 ROG
Goldstone PEQ GOLQ 7288 40405  M013  S031                             0.000 ROG
Mojave        MOJ1 7222 40405  S009  S029  -44.831   19.450  -14.456  0.000 MMC
Pinyon Flats  PIN1 7256 40407  M001  M002  125.588  117.655  279.910  1.844 ROG
Pinyon Fl.PEQ PN1Q 7256 40407  M001  M003                             1.844 ROG
Fairbanks     FAIR 7225 40408  S002  M001  -74.141   49.280  -31.231  0.116 ROG
Vandenberg    VAND 7223 40420  M002  M006    5.037   12.908   21.229  1.842 P12
VandenbergPEQ VANQ 7223 40420  M002  M007                             1.842 P12
Vandenberg    VANR 7223 40420  M002  M007?                                  ROG
Harvest       HARV      40420        M101                             0.100 TRG
Kokee Park    KOKB 1311 40424  S001  M004    7.941  -23.617   -4.407  0.093 ROG
Quincy        7221 7221 40433  M004  M004    0.000    0.000    0.000  0.061 TRG
Westford      WES1 7209 40440  S003  S019   26.315   42.246   32.467  0.000 MMC
Pietown       PIE1 7234 40456  S001  M001   36.916   34.827   35.255  0.061 TRG
SCRIPPS 1     SIO1      40460        M001                             1.846 ROG
SCRIPPS 2     SIO2      40460        M002                             0.065 P12
SCRIPPS 2 PEQ SO2Q      40460        M003                             0.065 P12
Carr Hill     CARR      40464        M001                             1.298 TRG
North Liberty NLIB 7612 40465  S001  M001  -62.228   24.387    3.626  0.061 TRG 
Richmond      RCMA 7219 40499  S001  S013   51.301   14.440    5.158  0.000 MMC
Richmond      7295 7295 40499  M002  M002    0.000    0.000    0.000  0.094 ROG
Santiago      SANT 1404 41705  S006  M003    0.231  -69.610  113.927  0.094 ROG
Canberra      CANB 1545 50103  S010  S017  -60.845 -208.543  -62.592  0.000 ROG
Orroral       ORRO 7843 50103  S007  M107   -1.997  -14.425  -18.837  0.002 P12
Orroral       ORRT 7843 50103  S007  M107   -1.997  -14.425  -18.837  0.000 SSP
Yarragadee    YAR1 7090 50107  M001  M004  -18.605  -12.471   -5.835  0.073 ROG
Hobart        HOBA 7242 50116  S002  S004   52.490   16.986  -25.806  0.000 MMC
Townsville    TOWN      50126        S004                             0.000 SST
Darwin        DARW      50134        M001                             0.350 P12
Wellington    WELL      50208        S002                             0.000 SST
Mc Murdo      MCMU      66001        M001                             4.990 ROG
Pamatai       PAMA      92201        M003                             8.41  ROG
Kourou        KOUR      97301        M210                             0.132 ROG
-------------------------------------------------------------------------------
(*) Note that for NYAL, the Horizontal offset NORTH = 0.004 metres
                        and Horizontal offset WEST  = 0.001 metres

Local Tie:
  Vector given from SLR/VLBI Reference to GPS Marker

Antenna Height:
  Vertical Distance from GPS Marker to Antenna Reference Point (ARP)

-------------------------------------------------------------------------------
Receiver/Antenna       Antenna Reference Point ARP   RCV   ARP to L1  ARP to L2
-------------------------------------------------------------------------------
Rogue Chokering        Bottom of Chokering           ROG     0.078      0.096
Minirogue Chokering    Bottom of Chokering           MRG     0.078      0.096
Turborogue Chokering   Bottom of Flange              TRG     0.110      0.128
Trimble SST            Bottom of Preamplifier        SST     0.069      0.068
Trimble SSE            Bottom of Preamplifier        SSE     0.069      0.068
Trimble SST L2 P-Code  Bottom of Preamplifier        SSP     0.069      0.068
Ashtech L-XII          Bottom of Antenna             L12     0.076      0.076
Ashtech P-XII          Bottom of Antenna             P12     0.076      0.076
Minimac 2816           Bottom of Antenna             MMC     0.107      0.092
-------------------------------------------------------------------------------

TABLE 2: IGS/IERS STATION COORDINATES SSC(IERS)  93 C 01 (EPOCH 1992.6)

Release : 10-MAR-1993

 DOMES         SITE         CDP        X            Y            Z       SX    SY    SZ     VX     VY     VZ    SVX   SVY   SVZ  
 NUMBER                     IGS        m            m            m       m     m     m      m      m      m      m     m     m   *
---------- ---------------- ---- ------------ ------------ ------------ ----- ----- ----- ------ ------  ----- ----- ----- ----- --
10302M002 TROMSO            7602  2102904.160   721602.485  5958201.291 0.007 0.007 0.008 -0.017  0.013  0.004 0.003 0.003 0.003 N
10302M003 TROMSO            TROM  2102940.446   721569.369  5958192.076 0.007 0.007 0.008 -0.017  0.013  0.004 0.003 0.003 0.003 N
10317M001 NY-ALESUND        NYAL  1202430.741   252626.641  6237767.500 0.009 0.009 0.010 -0.016  0.010  0.003 0.003 0.003 0.003 N
10325M001 HONEFOSS          HONE  3132539.011   566401.731  5508609.875 0.026 0.026 0.026 -0.016  0.016  0.007 0.003 0.003 0.003 N
10402M004 ONSALA            ONSA  3370658.758   711876.987  5349786.823 0.008 0.008 0.008 -0.015  0.016  0.006 0.001 0.002 0.002 CN
10402S002 ONSALA            7213  3370606.126   711917.453  5349830.683 0.006 0.006 0.007 -0.015  0.016  0.006 0.001 0.002 0.002 CN
10503M002 METSAHOVI         7601  2890652.844  1310295.299  5513958.657 0.009 0.008 0.011 -0.018  0.015  0.006 0.003 0.003 0.003 N
10503S011 METSAHOVI         METS  2892571.038  1311843.300  5512634.036 0.010 0.010 0.010 -0.018  0.015  0.006 0.003 0.003 0.003 N
11001M002 GRAZ              GRAZ  4194424.064  1162702.502  4647245.274 0.013 0.013 0.015 -0.017  0.017  0.009 0.002 0.002 0.003 CN
11001S002 GRAZ              7839  4194426.626  1162693.971  4647246.591 0.009 0.009 0.009 -0.017  0.017  0.009 0.002 0.002 0.003 CN
12734M008 MATERA            MATE  4641949.815  1393045.211  4133287.265 0.007 0.007 0.007 -0.020  0.019  0.014 0.002 0.002 0.002 CN
12734S001 MATERA            7939  4641964.990  1393070.038  4133262.300 0.007 0.006 0.007 -0.020  0.019  0.014 0.002 0.002 0.002 CN
13212M007 HERSTMONCEUX      HERS  4033470.300    23672.699  4924301.154 0.010 0.010 0.010 -0.014  0.016  0.008 0.002 0.002 0.003 CN
13212S001 HERSTMONCEUX      7840  4033463.788    23662.414  4924305.097 0.007 0.007 0.007 -0.014  0.016  0.008 0.002 0.002 0.003 CN
13407S010 MADRID            1565  4849336.760  -360488.845  4114748.730 0.007 0.007 0.008 -0.011  0.022  0.007 0.004 0.003 0.003 CN
13407S012 MADRID            MADR  4849202.516  -360329.182  4114913.006 0.006 0.006 0.007 -0.011  0.022  0.007 0.004 0.003 0.003 CN
13504M002 KOOTWIJK          8833  3899237.799   396769.262  5015055.263 0.008 0.008 0.008 -0.016  0.017  0.006 0.005 0.004 0.005 CN
13504M003 KOOTWIJK          KOSG  3899225.338   396731.759  5015078.287 0.007 0.007 0.007 -0.016  0.017  0.006 0.005 0.004 0.005 CN
14001S001 ZIMMERWALD        7810  4331283.599   567549.663  4633140.034 0.009 0.009 0.009 -0.008  0.020  0.016 0.004 0.002 0.004 CN
14201S004 WETTZELL          7224  4075539.981   931735.215  4801629.304 0.006 0.006 0.006 -0.019  0.017  0.004 0.001 0.002 0.002 CN
14201S020 WETTZELL          WETT  4075578.676   931852.630  4801569.982 0.006 0.006 0.006 -0.019  0.017  0.004 0.001 0.002 0.002 CN
20702M002 BAR GIYYORA       BARG  4443959.362  3121953.102  3334710.334 0.023 0.019 0.024 -0.024  0.015  0.017 0.011 0.008 0.009 CN
21729S001 USUDA             7246 -3855355.402  3427427.607  3740971.310 0.035 0.032 0.038 -0.021 -0.009 -0.013 0.003 0.003 0.003 N
21729S003 USUDA ORIGINAL    USUD -3855262.628  3427432.203  3741020.952 0.019 0.019 0.013 -0.021 -0.009 -0.013 0.003 0.003 0.003 N
21729S005 USUDA DISPLACED   USU2 -3855263.055  3427432.575  3741020.469 0.019 0.019 0.020 -0.021 -0.009 -0.013 0.003 0.003 0.003 N
21729S007 USUDA CURRENT     USU3 -3855263.049  3427432.526  3741020.437 0.026 0.026 0.029 -0.021 -0.009 -0.013 0.003 0.003 0.003 N
21730S001 TSUKUBA           7311 -3957172.864  3310237.879  3737708.914 0.025 0.021 0.027  0.004 -0.012 -0.024 0.003 0.003 0.004 CN
23601M001 TAIPEI            TAIW -3024781.867  4928936.916  2681234.520 0.019 0.019 0.014 -0.023 -0.007 -0.013 0.003 0.003 0.003 N
30302M002 HARTEBEESTHOEK    HART  5084625.425  2670366.519 -2768494.036 0.013 0.012 0.011 -0.006  0.021  0.013 0.004 0.004 0.003 CN
30302S001 HARTEBEESTHOEK    7232  5085442.795  2668263.474 -2768697.160 0.013 0.012 0.011 -0.006  0.021  0.013 0.004 0.004 0.003 CN
31303M001 MASPALOMAS        MASP  5439189.186 -1522054.848  2953464.161 0.014 0.010 0.010 -0.003  0.020  0.016 0.003 0.003 0.003 N
40101M001 ST. JOHNS         STJO  2612631.340 -3426807.001  4686757.745 0.010 0.010 0.010 -0.018 -0.002  0.009 0.003 0.003 0.003 N
40103M001 PRINCE ALBERT     PRAL -1050708.064 -3680985.831  5085127.916 0.010 0.021 0.028 -0.020 -0.001 -0.005 0.003 0.003 0.003 N
40104M002 ALGONQUIN         ALGO   918129.608 -4346071.220  4561977.798 0.006 0.006 0.007 -0.016 -0.004 -0.001 0.001 0.002 0.002 CN
40104S001 ALGONQUIN         7282   918034.852 -4346132.243  4561971.132 0.006 0.007 0.007 -0.016 -0.004 -0.001 0.001 0.002 0.002 CN
40105M001 PENTICTON         7283 -2058840.417 -3621286.445  4814420.790 0.009 0.011 0.012 -0.024 -0.016  0.010 0.001 0.001 0.002 CN
40105M002 PENTICTON         DRAO -2059164.597 -3621108.392  4814432.426 0.009 0.011 0.011 -0.024 -0.016  0.010 0.001 0.001 0.002 CN
40124M001 CALGARY           PRDS -1659602.748 -3676725.741  4925493.632 0.078 0.098 0.142 -0.019 -0.001 -0.007 0.003 0.003 0.003 N
40127M001 YELLOWKNIFE       7285 -1224124.523 -2689530.646  5633555.403 0.012 0.016 0.018 -0.022 -0.001 -0.005 0.003 0.003 0.003 N
40127M003 YELLOWKNIFE       YELL -1224452.378 -2689216.072  5633638.284 0.008 0.009 0.009 -0.022 -0.001 -0.005 0.003 0.003 0.003 N
40129M001 VICTORIA          7289 -2341310.090 -3539083.864  4745768.349 0.024 0.037 0.045 -0.018 -0.001 -0.010 0.003 0.003 0.003 N
40129M002 VICTORIA          PGC1 -2327188.048 -3522528.980  4764832.376 0.011 0.011 0.011 -0.018 -0.001 -0.010 0.003 0.003 0.003 N
40129M003 ALBERT HEAD       ALBH -2341332.823 -3539049.499  4745791.397 0.010 0.012 0.012 -0.018 -0.001 -0.010 0.003 0.003 0.003 N
40400M003 PASADENA          7263 -2493306.039 -4655197.549  3565519.412 0.011 0.013 0.013 -0.032  0.019  0.006 0.001 0.001 0.002 CN
40400M006 PASADENA          JPL1 -2493304.054 -4655215.583  3565497.349 0.008 0.009 0.009 -0.032  0.019  0.006 0.001 0.001 0.002 CN
40400M007 PASADENA PEQ      JP1Q -2493304.061 -4655215.548  3565497.345 0.012 0.012 0.012 -0.032  0.019  0.006 0.001 0.001 0.002 CN
40405M013 GOLDSTONE         7288 -2356494.088 -4646607.650  3668426.621 0.008 0.009 0.009 -0.014  0.007 -0.008 0.001 0.001 0.001 CN
40405S028 GOLDSTONE         GOLD -2353614.071 -4641385.390  3676976.487 0.009 0.010 0.009 -0.014  0.007 -0.008 0.001 0.001 0.001 CN
40405S031 GOLDSTONE PEQ     GOLQ -2353614.083 -4641385.417  3676976.478 0.012 0.012 0.012 -0.014  0.007 -0.008 0.001 0.001 0.001 CN
40405S009 MOJAVE            7222 -2356170.966 -4646755.859  3668470.592 0.006 0.007 0.007 -0.014  0.007 -0.008 0.001 0.001 0.001 CN
40407M001 PINYON FLATS      7256 -2369635.962 -4761324.889  3511116.171 0.011 0.014 0.015 -0.024  0.015  0.002 0.001 0.001 0.002 CN
40407M002 PINYON FLATS      PIN1 -2369510.378 -4761207.226  3511396.090 0.008 0.011 0.009 -0.024  0.015  0.002 0.001 0.001 0.002 CN
40407M003 PINYON FLATS PEQ  PN1Q -2369510.363 -4761207.199  3511396.140 0.010 0.011 0.012 -0.024  0.015  0.002 0.001 0.001 0.002 CN
40408M001 FAIRBANKS         FAIR -2281621.322 -1453595.773  5756961.966 0.006 0.007 0.007 -0.024 -0.005 -0.008 0.001 0.001 0.002 CN
40408S002 FAIRBANKS         7225 -2281547.189 -1453645.057  5756993.207 0.007 0.007 0.008 -0.024 -0.005 -0.008 0.001 0.001 0.002 CN
40420M006 VANDENBERG        VAND -2678089.798 -4525437.827  3597431.510 0.026 0.026 0.026 -0.030  0.029  0.018 0.001 0.002 0.002 CN
40420M007 VANDENBERG PEQ    VANQ -2678089.789 -4525437.803  3597431.506 0.026 0.026 0.026 -0.030  0.029  0.018 0.001 0.002 0.002 CN
40424M004 KAUAI             KOKB -5543838.081 -2054587.527  2387809.575 0.007 0.007 0.008 -0.011  0.062  0.030 0.001 0.002 0.002 CN
40424S001 KAUAI             1311 -5543846.021 -2054563.899  2387813.980 0.008 0.008 0.009 -0.011  0.062  0.030 0.001 0.002 0.002 CN
40433M004 QUINCY            7221 -2517230.899 -4198595.190  4076531.281 0.026 0.026 0.026 -0.019  0.009 -0.010 0.001 0.001 0.001 CN
40440S003 WESTFORD          7209  1492206.700 -4458130.500  4296015.503 0.006 0.006 0.007 -0.015 -0.002  0.000 0.001 0.001 0.001 CN
40460M001 SCRIPPS 1         SIO1 -2455521.657 -4767213.456  3441654.913 0.014 0.013 0.015 -0.014  0.000 -0.011 0.003 0.003 0.003 N
40460M002 SCRIPPS 2         SIO2 -2455539.225 -4767224.123  3441628.878 0.026 0.026 0.026 -0.014  0.000 -0.011 0.003 0.003 0.003 N
40460M003 SCRIPPS 2 PEQ     SO2Q -2455539.213 -4767224.108  3441628.896 0.026 0.026 0.026 -0.014  0.000 -0.011 0.003 0.003 0.003 N
40464M001 CARR HILL         CARR -2620447.020 -4460941.698  3718442.667 0.026 0.026 0.026 -0.015 -0.001 -0.011 0.003 0.003 0.003 N
40499S001 RICHMOND          7219   961258.126 -5674090.035  2740533.758 0.006 0.006 0.008 -0.009 -0.001 -0.003 0.001 0.001 0.002 CN
41705M003 SANTIAGO          SANT  1769693.251 -5044574.115 -3468321.155 0.016 0.017 0.015  0.001 -0.005  0.008 0.003 0.003 0.003 N
41705S006 SANTIAGO          1404  1769693.020 -5044504.505 -3468435.082 0.016 0.017 0.015  0.001 -0.005  0.008 0.003 0.003 0.003 N
50103S007 ORRORAL           7843 -4446476.914  2678127.018 -3696251.445 0.013 0.013 0.013 -0.037 -0.003  0.046 0.004 0.003 0.003 CN
50103S010 CANBERRA          1545 -4460935.239  2682765.693 -3674381.376 0.016 0.012 0.012 -0.037 -0.003  0.046 0.004 0.003 0.003 CN
50103S017 CANBERRA CURRENT  CANB -4460996.083  2682557.150 -3674443.967 0.016 0.012 0.012 -0.037 -0.003  0.046 0.004 0.003 0.003 CN
50103S020 CANBERRA 1        DS40 -4460987.939  2682362.746 -3674626.615 0.031 0.031 0.031 -0.037 -0.003  0.046 0.004 0.003 0.003 CN
50103S021 CANBERRA 2        DS41 -4460979.465  2682381.151 -3674624.212 0.031 0.031 0.031 -0.037 -0.003  0.046 0.004 0.003 0.003 CN
50107M001 YARRAGADEE        7090 -2389006.732  5043329.301 -3078525.084 0.011 0.011 0.012 -0.050  0.005  0.053 0.003 0.003 0.003 N
50107M004 YARRAGADEE        YAR1 -2389025.339  5043316.833 -3078530.933 0.011 0.010 0.010 -0.050  0.005  0.053 0.003 0.003 0.003 N
50116S002 HOBART            7242 -3950236.543  2522347.521 -4311562.687 0.047 0.055 0.039 -0.046  0.012  0.035 0.005 0.004 0.005 CN
50116S004 HOBART            HOBA -3950184.053  2522364.507 -4311588.493 0.047 0.055 0.039 -0.046  0.012  0.035 0.005 0.004 0.005 CN
50126S004 TOWNSVILLE        TOWN -5041024.918  3296980.267 -2090553.318 0.067 0.056 0.043 -0.033 -0.016  0.054 0.003 0.003 0.003 N
50134M001 DARWIN            DARW -4091358.641  4684606.818 -1408580.873 0.031 0.029 0.031 -0.038 -0.015  0.060 0.003 0.003 0.003 N
50208S002 WELLINGTON        WELL -4780648.819   436507.116 -4185440.401 0.054 0.069 0.031 -0.025  0.003  0.029 0.003 0.003 0.003 N
66001M001 MC MURDO          MCMU -1310695.242   310468.883 -6213363.477 0.016 0.017 0.023  0.010 -0.010 -0.003 0.003 0.003 0.003 N
92201M003 PAMATAI           PAMA -5245195.204 -3080472.425 -1912825.530 0.025 0.025 0.013 -0.042  0.052  0.031 0.003 0.003 0.003 N
----------------------------------------------------------------------------------------------------------------------------------
*  N : NNR-NUVEL1 velocity
  CN : ITRF91 velocity field (combined solution from SLR and VLBI estimates)