[IGSREPORT-9524] WK 1178 EMR Analysis Report

Caroline Huot huot at geod.nrcan.gc.ca
Tue Aug 20 08:45:41 PDT 2002


******************************************************************************
IGS Electronic Report   20 Aug 08:45:43 PDT 2002      Message Number 9524
******************************************************************************

Author: NRCan/GSDivision

********************************************************************************
EMR ANALYSIS REPORT GPS-WEEK 1178    Dates: 02aug04  to  02aug10                
********************************************************************************

NRCan (Natural Resources Canada, formerly Energy, Mines and Resources (EMR))
615 Booth Street, Ottawa, Canada K1A 0E9
e-mail: pierre at geod.nrcan.gc.ca, huot at geod.nrcan.gc.ca
tel:    (613)992-2218 (Pierre Tetreault)
	(613)996-4914 (Caroline Huot)
fax:    (613)995-3215

PRODUCTS GENERATED:
The following products are generated and uploaded into CDDIS @ NASA/GSFC
   EMR11780-6.SP3     GPS ephem. files for days 0-6, week #1178 in sp3 format 
   EMR11787.ERP       pole x,y and DUT1 solutions for week #1178
   EMR11787.SNX       station and EOP weekly combined solution in SINEX format
   EMR11787.SUM       name of this text summary file

REMARKS on EMR products:
1. ALGO receiver clock used as reference time. In the sp3 EPH file sat. clock
   correction value of 999999.999999 microseconds indicates that the direct clock 
   comparison with the reference clock is not available (e.g. ALGO not observing
   a satellite). 
   ALGO clock error & drift were about 67.7 ns (52490) & 11.5 ns/day w.r.t.
   GPS time
 
2.      Date  |  PRN  | Action |     Period     |      Reason
     +--------+-------+--------+----------------+----------------------------+
      02aug04    15       R     20:00 to 23:45   Modeling Problems
      02aug05    21       E     00:00 to 23:45   Modeling problems
      02aug08    21       R     00:00 to 23:45   Modeling Problems
      02aug10    21       R     00:00 to 23:45   Modeling Problems
     +--------+-------+--------+----------------+----------------------------+
     (R)  Satellite was removed from EMR SP3 file.
     (E)  Satellite was excluded prior to processing data.
     (M)  Satellite in maneuver.

SOLUTION CHARACTERISTICS
1. Solution identifier:  Submission 020815
2. Software used      :  GIPSY/OASIS II (UNIX )
3. Definition of Terrestrial frame:
   origin and orientation         :  Nominally IGS00
   reference epoch                :  current date
   GM                             :  398600.4415 km^3/s^2
   gravity model                  :  GEMT3( 8,8) +C21+S21
   ocean loading                  :  Pagiatakis, global_model
4. Solution characteristics:
      undifferenced phase and smoothed pseudorange data for satellite
      elevation > 15 degrees at 5 min. normal point interval; single 
      day (24h) arc with 6 IC and 3 rad. parameters per satellite
5. See IGS Mail#3708 (January 23, 2002), IGS Mail#928 (April 05, 1995) 
   and IGS Report#1488 (January 16, 1995) for more details regarding NRCan
   processing strategy.


CARRIER PHASE / PSEUDO RANGE STATISTICS

Note: F indicates a constrained fiducial site
      E indicates an eclipsing satellite

                             Carrier Phase Statistics
                                 rms (cm) /  # obs  

            02aug04   02aug05   02aug06   02aug07   02aug08   02aug09   02aug10 
          ---------------------------------------------------------------------
ALGO       .54/2429  .56/2358  .39/2426  .42/2428  .40/2421  .44/2432  .50/2427 
ARTU       .50/2537  .51/2434  .57/2459  .53/1941  .55/2426  .50/2319  .47/2359 
ASC1       .58/2000  .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .00/   0 
BAHR       .55/2492  .52/2433  .58/2564  .62/2559  .59/2560  .55/2564  .55/2576 
CAS1       .42/2397  .43/2120  .42/2341  .48/2395  .42/2445  .41/2141  .44/2527 
CHAT       .64/2385  .60/2302  .57/2295  .58/2378  .65/2168  .63/2385  .59/2084 
COCO       .67/2526  .72/2345  .64/2550  .63/2573  .52/2568  .64/2527  .55/2504 
CRO1       .00/   0  .00/   0  .00/   0  .00/   0  .76/2152  .57/2138  .70/2118 
DRAO       .57/2501  .55/2424  .52/2433  .50/2510  .47/2508  .55/2512  .66/2509 
EISL       .57/1839  .58/1932  .55/1771  .57/2088  .57/1654  .66/1769  .66/1945 
FAIR       .58/2560  .60/2662  .63/2672  .60/2686  .54/2714  .56/2537  .56/2658 
FORT       .00/   0  .00/   0  .00/   0  .00/   0  .71/1868  .64/2099  .00/   0 
GALA       .54/2559  .50/2504  .51/2543  .53/2634  .50/2576  .53/2605  .52/2664 
GOUG       .71/2138  .75/1998  .73/1659  .87/2043  .70/1627  .73/1779  .78/2198 
GRAZ       .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .57/2447  .57/2516 
GUAM       .00/   0  .00/   0  .90/2567  .93/2622  .87/2586  .00/   0  .00/   0 
HRAO       .57/2255  .53/2389  .54/2478  .52/2332  .58/2247  .57/2077  .53/2023 
IISC       .63/2507  .69/2522  .74/2390  .69/2629  .67/2641  .00/   0  .70/2631 
IRKT       .52/2341  .52/2182  .58/2044  .55/2227  .52/2108  .55/2026  .52/2293 
KERG       .62/2281  .60/2191  .58/2373  .56/2316  .54/2188  .59/2342  .60/2363 
KOUR       .87/2759  .83/2680  .87/2695  .95/2752  .00/   0  .84/2696  .77/2704 
KUNM       .70/1774  .68/1789  .00/   0  .00/   0  .00/   0  .00/   0  .59/1792 
LHAS       .00/   0  .00/   0  .00/   0  .00/   0  .44/ 365  .00/   0  .00/   0 
LPGS       .58/1761  .59/1764  .58/1647  .59/1782  .57/1870  .58/1407  .60/1809 
MAC1       .41/2087  .41/2111  .38/2027  .51/2059  .42/1973  .39/2050  .37/2084 
MBAR       .00/   0  .00/   0  .71/2563  .63/2640  .00/   0  .00/   0  .00/   0 
MDO1       .57/2223  .56/1923  .50/1964  .51/2135  .46/1886  .52/1300  .00/   0 
MKEA       .69/2462  .76/2372  .69/2422  .72/2395  .72/2454  .71/2447  .72/2454 
NKLG       .79/2502  .82/2448  .83/2343  .79/2468  .00/   0  .81/2421  .87/2203 
NRC1       .49/2437  .64/2351  .36/2421  .38/2430  .38/2433  .39/2439  .48/2438 
NRC2       .49/2439  .63/2354  .36/2429  .38/2438  .39/2444  .39/2445  .48/2436 
OHI2       .58/2579  .50/2462  .48/2578  .46/2560  .47/2566  .48/2477  .50/2563 
PERT       .76/2186  .53/2191  .51/2057  .56/2148  .68/2246  .68/2216  .68/2257 
POTS       .63/2329  .65/2381  .56/2404  .65/2476  .58/2495  .00/   0  .00/   0 
RABT       .00/   0  .00/   0  .00/   0  .00/   0  .52/1705  .45/1499  .49/1997 
SEY1       .00/   0  .86/1497  .00/   0  .00/   0  .00/   0  .91/1857  .92/1689 
STJO       .54/2514  .64/2456  .58/2471  .70/2530 1.01/2530  .61/2543  .52/2545 
SYOG       .00/   0  .00/   0  .53/1957  .00/   0  .00/   0  .00/   0  .00/   0 
THTI       .85/2370  .81/2357  .00/   0  .66/2327  .66/2422  .71/2424  .00/   0 
TIDB       .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .54/2449  .56/2455 
TIXI       .50/2854  .56/2830  .68/2818  .68/2929  .52/2882  .59/2721  .55/2856 
TOW2       .44/2546  .43/2459  .41/2417  .54/2537  .52/2413  .46/2450  .47/2450 
TROM       .42/2634  .43/2761  .53/2825  .56/2838  .45/2814  .43/2670  .44/2710 
TSKB       .64/2274  .58/2465  .71/2532  .61/2539  .60/2533  .53/2395  .57/2541 
USNO       .74/2443  .82/2369  .78/2446  .55/1966  .43/ 512  .56/2222  .57/2467 
VILL       .66/2423  .70/2367  .68/2447  .69/2087  .00/   0  .00/   0  .00/   0 
YELL       .49/2494  .51/2510  .54/2504  .51/2519  .48/2497  .48/2531  .50/2503 
YSSK       .70/2096  .72/2205  .71/2416  .65/2292  .64/2281  .00/   0  .00/   0 

PRN01      .61/3467  .61/3496  .57/3534  .61/3565  .55/3491  .54/3425  .52/3305 
PRN02      .54/3546  .56/3585  .54/3649  .58/3656  .55/3246  .54/3539  .51/3456 
PRN03      .55/3203  .56/3270  .57/3200  .56/3251  .57/3141  .53/3269  .56/3250 
PRN04 E    .61/3231  .60/3206  .60/3315  .62/3364  .59/3177  .56/2999  .65/3136 
PRN05      .60/3307  .66/3284  .55/2016  .55/3380  .55/3109  .59/3095  .60/3224 
PRN06      .65/3331  .65/3329  .62/3485  .60/3456  .58/3136  .61/3222  .60/3209 
PRN07      .63/3342  .59/3331  .57/3288  .59/3337  .54/3043  .54/3037  .60/3187 
PRN08 E    .63/3133  .59/3148  .58/3174  .58/3225  .62/3025  .58/3060  .59/2915 
PRN09 E    .62/3093  .63/3074  .58/2990  .71/3101  .59/2821  .59/2891  .61/2932 
PRN10      .59/3416  .57/3498  .56/3492  .55/3560  .58/3386  .59/3355  .57/3327 
PRN11 E    .60/2980  .63/3141  .62/3149  .62/3143  .62/2850  .57/2865  .61/2987 
PRN13      .61/3374  .61/3299  .61/3470  .63/3414  .58/3213  .56/3311  .55/3254 
PRN14      .63/3319  .66/3199  .61/3178  .61/3143  .59/2801  .58/3154  .59/3113 
PRN15 E    .69/2443  .73/2872  .76/3064  .71/2986  .66/2700  .70/2751  .71/2857 
PRN17 E    .65/2887  .69/2890  .92/3010  .76/2745  .72/2419  .74/2690  .69/2777 
PRN18      .62/2999  .61/3111  .58/3288  .61/3102  .53/2798  .54/2879  .60/2942 
PRN20      .61/3461  .62/3407  .56/3456  .58/3343  .59/3097  .54/3143  .57/3222 
PRN21      .56/3041  .00/   0  .55/3145  .57/2997  .61/2655  .55/2854  .60/2810 
PRN22      .55/3537  .59/3563  .56/3494  .57/3385  .55/3415  .56/3411  .57/3471 
PRN23      .64/3288  .65/3281  .61/3237  .62/3358  .59/3104  .59/3020  .59/3185 
PRN24 E    .64/3318  .72/3364  .62/3351  .72/3423  .57/3230  .63/3032  .56/3082 
PRN25 E    .76/3312  .75/3322  .75/3410  .76/3222  .73/3027  .72/3063  .72/3168 
PRN26      .54/3183  .59/3254  .56/3049  .56/3189  .54/3036  .52/2928  .54/3221 
PRN27 E    .57/3007  .57/2971  .59/2843  .67/3094  .60/2763  .56/2992  .54/2830 
PRN28      .57/3013  .58/3177  .57/3009  .57/3056  .59/2778  .55/2738  .56/2854 
PRN29      .57/3198  .61/3274  .55/3172  .59/3266  .58/3206  .55/3160  .53/3275 
PRN30      .63/3433  .61/3443  .61/3345  .59/3314  .53/3017  .59/3164  .57/3308 
PRN31      .54/3071  .54/3109  .54/3135  .55/3133  .55/3094  .57/3311  .57/3051 


                             Pseudo Range Statistics
                                rms (cm) /  # obs

            02aug04   02aug05   02aug06   02aug07   02aug08   02aug09   02aug10 
          ---------------------------------------------------------------------
ALGO        34/2429   36/2358   34/2426   37/2428   42/2421   39/2432   39/2427 
ARTU        20/2537   21/2434   20/2460   20/1933   21/2426   20/2319   20/2359 
BAHR        30/2492   29/2433   29/2567   29/2559   30/2560   30/2564   31/2577 
CAS1        27/2398   28/2120   26/2341   27/2395   26/2445   26/2141   28/2527 
COCO        24/2528   29/2346   28/2553   21/2576   29/2568   29/2527   27/2504 
CRO1         0/   0    0/   0    0/   0    0/   0   42/2160   43/2143   44/2126 
DRAO        33/2501   39/2424   35/2433   41/2509   41/2507   39/2512   38/2509 
EISL        54/1851   53/1932   57/1771   58/2087   50/1654   60/1769   64/1945 
FAIR        31/2560   33/2662   31/2672   35/2686   33/2714   29/2537   31/2658 
GALA        41/2559   44/2504   45/2543   41/2634   39/2576   40/2605   42/2664 
GOUG         0/   0    0/   0   59/1658    0/   0   66/1629   65/1781    0/   0 
GRAZ         0/   0    0/   0    0/   0    0/   0    0/   0   69/2448   68/2517 
GUAM         0/   0    0/   0   53/2575   57/2631   62/2594    0/   0    0/   0 
HRAO        24/2259   27/2396   27/2484   28/2339   30/2259   32/2088   37/2030 
IISC        59/2507   61/2522   61/2393   62/2629   61/2641    0/   0   60/2631 
IRKT        62/2342   63/2182   65/2052   65/2228   68/2109   66/2027   67/2294 
KERG        59/2281   61/2191   59/2373   49/2316   51/2188   58/2342   53/2363 
KOUR        42/2772   41/2690   41/2713   42/2771    0/   0   41/2719   42/2719 
KUNM        88/1774   86/1789    0/   0    0/   0    0/   0    0/   0    0/   0 
LHAS         0/   0    0/   0    0/   0    0/   0   34/ 365    0/   0    0/   0 
LPGS        49/1764   51/1763   50/1647   52/1780   52/1868   50/1403   57/1808 
MAC1        35/2087   36/2110   33/2027   33/2059   29/1975   35/2051   34/2084 
MBAR         0/   0    0/   0   35/2568   33/2646    0/   0    0/   0    0/   0 
MDO1        43/2224   46/1925   52/1964   46/2136   46/1887   46/1300    0/   0 
MKEA        25/2468   24/2378   25/2428   25/2403   25/2466   27/2456   25/2463 
NKLG        74/2505    0/   0    0/   0    0/   0    0/   0    0/   0    0/   0 
NRC1        40/2438   39/2356   38/2421   40/2430   43/2433   43/2439   41/2438 
NRC2        42/2440   41/2359   40/2429   42/2438   44/2444   43/2445   43/2436 
OHI2        32/2584   33/2467   33/2582   33/2564   32/2571   32/2482   34/2567 
PERT        66/2186   67/2191   70/2059   67/2150   69/2248   70/2216   67/2260 
POTS        59/2329   60/2382   59/2410   58/2476   59/2497    0/   0    0/   0 
RABT         0/   0    0/   0    0/   0    0/   0   52/1713   53/1505   45/2006 
SEY1         0/   0   82/1499    0/   0    0/   0    0/   0    0/   0    0/   0 
STJO        30/2514   31/2456   31/2472   31/2537   32/2541   33/2543   32/2545 
SYOG         0/   0    0/   0   59/1956    0/   0    0/   0    0/   0    0/   0 
TIDB         0/   0    0/   0    0/   0    0/   0    0/   0   28/2450   28/2455 
TIXI        42/2854   43/2830   43/2819   43/2930   44/2882   44/2721   44/2856 
TOW2        19/2547   18/2462   18/2418   18/2540   19/2414   19/2452   20/2450 
TROM        41/2634   41/2761   41/2829   41/2838   41/2814   40/2670   40/2710 
TSKB        53/2276   29/2469   27/2538   27/2543   26/2536   25/2400   25/2546 
USNO        43/2447   42/2372   42/2448   40/1966   33/ 512   39/2221   41/2467 
VILL        41/2425   41/2373   40/2461   40/2087    0/   0    0/   0    0/   0 
YELL        45/2496   42/2510   43/2504   40/2519   41/2497   42/2531   41/2503 
YSSK        59/2097   56/2204   58/2422   54/2292   57/2281    0/   0    0/   0 

PRN01       45/3181   45/3217   40/3408   39/3295   42/3211   40/3035   40/3033 
PRN02       44/3240   46/3272   45/3505   43/3352   42/2953   44/3111   42/3178 
PRN03       42/2846   45/2933   42/3042   42/2924   41/2847   44/2851   42/2915 
PRN04 E     43/2895   43/2862   43/3154   42/3018   43/2924   41/2615   40/2751 
PRN05       46/3022   42/2924   37/2016   41/3060   46/2900   41/2702   42/2818 
PRN06       45/3028   45/3027   43/3363   45/3184   45/2879   43/2827   42/2922 
PRN07       46/2961   45/2925   42/3062   41/2936   44/2819   42/2611   44/2749 
PRN08 E     45/2771   43/2788   43/3003   41/2883   44/2717   42/2622   42/2618 
PRN09 E     44/2744   44/2757   44/2839   46/2780   44/2687   39/2527   43/2567 
PRN10       46/3145   44/3233   41/3363   43/3300   46/3145   44/2919   42/2974 
PRN11 E     46/2640   48/2734   46/2952   45/2759   45/2537   42/2398   46/2626 
PRN13       47/3072   44/2991   45/3321   42/3115   43/3020   40/2968   42/3005 
PRN14       48/2963   46/2769   41/2942   42/2721   43/2655   47/2720   44/2706 
PRN15 E     47/2289   47/2640   45/2921   42/2689   43/2496   41/2378   43/2476 
PRN17 E     46/2646   45/2593   45/2914   43/2490   44/2341   41/2308   44/2424 
PRN18       48/2637   47/2714   47/3053   43/2682   45/2595   45/2499   43/2488 
PRN20       47/3129   45/3019   45/3241   41/2958   45/2875   43/2784   43/2904 
PRN21       44/2678    0/   0   45/2970   42/2642   45/2521   44/2458   43/2438 
PRN22       47/3245   48/3259   46/3340   42/3080   46/3100   41/2956   42/3158 
PRN23       47/2980   46/2949   44/3064   41/3025   47/2948   46/2759   45/2798 
PRN24 E     44/3025   44/3030   41/3174   41/3130   44/3016   45/2674   41/2650 
PRN25 E     45/3066   43/3000   43/3264   42/2915   43/2846   42/2734   44/2866 
PRN26       39/2876   41/2968   40/2911   41/2924   41/2825   39/2583   40/2827 
PRN27 E     44/2651   44/2637   42/2683   42/2759   40/2460   42/2584   42/2531 
PRN28       50/2597   52/2787   48/2802   49/2673   50/2558   45/2293   45/2515 
PRN29       40/2883   41/2987   38/3023   40/3004   43/2969   41/2792   40/2866 
PRN30       44/3151   44/3051   42/3112   42/2945   45/2804   45/2735   45/2918 
PRN31       43/2744   42/2784   40/2974   40/2812   39/2747   39/2796   39/2723 


                         Station Clock Offsets Solution for 0h UT
                               (microsecond / sigma in ns)

       02aug04   02aug05   02aug06   02aug07   02aug08   02aug09   02aug10  sig 
       ------------------------------------------------------------------------
ALGO       REF       REF       REF       REF       REF       REF       REF   --
ARTU    -.1448    -.1589    -.1728    -.1771    -.1927    -.2012    -.2088*  .3
BAHR  426.1638  426.1620  426.1602  426.1591  426.1595  426.1598  426.1594   .2
CAS1    -.0697    -.0764    -.0969    -.1077    -.1206    -.1322    -.1459   .3
COCO    -.0734    -.0881    -.0920    -.1115    -.1124    -.1300    -.1349   .2
CRO1       ---       ---       ---       ---  784.5147  784.5022  784.4894   .2
DRAO   -1.3368   -1.3797   -1.4230   -1.4657   -1.5088   -1.5525   -1.5965   .2
EISL    -.0658    -.1003    -.0831    -.1006    -.0934     .0099    -.1522*  .3
FAIR  842.2885  842.2827  842.2783  842.2744  842.2709  842.2669  842.2625   .2
GALA    -.1838    -.1959    -.2067    -.2096    -.2209    -.2384    -.2503   .3
GOUG       ---       ---  136.3490*      ---  728.4169* 956.8088*      ---   .3
GRAZ       ---       ---       ---       ---       ---   43.1886  840.5791   .2
GUAM       ---       ---    -.1917    -.2016    -.2169       ---       ---   .2
HRAO    -.1284    -.1497    -.1477    -.1529    -.1717    -.1720    -.1943   .2
IISC    -.1509    -.1557    -.1720    -.1782    -.1892       ---    -.2087   .2
IRKT    -.1834    -.1980     .1313     .1166     .1026     .0866    -.0735   .3
KERG  533.2144* 533.0545* 533.3026* 533.3588* 533.2088* 533.2584* 533.3059*  .5
KOUR    -.1581    -.1759    -.1905    -.2012       ---    -.2175    -.2463   .3
KUNM    -.0970    -.0855       ---       ---       ---       ---       ---   .3
LHAS       ---       ---       ---       ---    -.1191       ---       ---   .6
LPGS    -.1074    -.1117*  -4.6504*   -.1565*   -.1745*   -.1200    -.1188* 1.2
MAC1    -.0883    -.0818    -.1102    -.0962    -.0948    -.0825    -.1467   .2
MBAR       ---       ---    -.1572    -.1573       ---       ---       ---   .3
MDO1    -.7703   -1.2943    -.2152    -.5824     .1087     .5671*      ---   .4
MKEA    -.1823    -.1991    -.2040    -.2141    -.2350    -.2391    -.2401   .2
NKLG  601.5081*      ---       ---       ---       ---       ---       ---   .2
NRC1     .6105     .6115     .6110     .6121     .6136     .6146     .6151   .2
NRC2     .8534     .8543     .8538     .8549     .8563     .8573     .8580   .2
OHI2    -.0720    -.0726    -.0825    -.1029    -.1179    -.1251    -.1372   .2
PERT    -.1394    -.1527    -.1513    -.1629    -.1782    -.1914    -.2230   .2
POTS    -.0785*   -.0964    -.0963    -.1017    -.1228       ---       ---   .2
RABT       ---       ---       ---       ---    -.0909    -.1052    -.1327   .2
SEY1       ---    -.1586*      ---       ---       ---       ---       ---   .3
STJO   -3.0178   -3.0374   -3.2051    -.2697    -.3421    -.0976     .3230   .2
SYOG       ---       ---  159.4478       ---       ---       ---       ---   .3
TIDB       ---       ---       ---       ---       ---  347.9595  347.9374   .2
TIXI    -.1384*   -.1639*   -.1690*   -.1756*   -.1823*   -.2077*   -.2153*  .2
TOW2    -.1080    -.1155    -.1027    -.1251    -.1723    -.1792   -3.4258*  .2
TROM    -.0613    -.0758    -.0812    -.0919    -.1174    -.1088    -.1312   .2
TSKB    -.3842    -.3522    -.3660    -.3817    -.4082    -.4243    -.4404   .2
USNO   85.2089   85.1983   85.1874   85.1768   85.1671   85.1568   85.1461   .3
VILL  442.4474  442.1701  441.8894  441.6445       ---       ---       ---   .2
YELL    -.2096  226.0341    !!ms!!    -.1747    -.1163    -.0993    -.1045   .3
YSSK    -.1505*   -.1680*   -.1838*   -.1869*   -.1850*      ---       ---   .2
  
  
Notes: * indicates epoch other than 0h UT
       Sig are sigmas, in ns, averaged over 7 days
       !!ms!! indicates offsets greater than 1 millisecond
 
global: ALGO ARTU ASC1 BAHR CAS1 CHAT COCO CRO1 DRAO EISL FAIR FORT GALA GOUG
global: GRAZ GUAM HRAO IISC IRKT KERG KOUR KUNM LHAS LPGS MAC1 MBAR MDO1 MKEA
global: NKLG NRC1 NRC2 OHI2 PERT POTS RABT SEY1 STJO SYOG THTI TIDB TIXI TOW2
global: TROM TSKB USNO VILL YELL YSSK
-- 
#####################################
Caroline Huot                       
Geomatic Canada
Geodetic Survey of Canada          
615 Booth, Room #468
Ottawa, Ontario, Canada
K1A-0E9
Internet: huot at geod.nrcan.gc.ca
#####################################



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