Subject: [IGSREPORT-8931] Wk 1147 EMR Analysis Report
From: Pierre Tetreault <[email-masked]>
To: [email-masked] (IGSReportMailbox)
Date: Wed, 09 Jan 2002 18:09:17 GMT

******************************************************************************
IGS Electronic Report   09 Jan 10:09:20 PST 2002      Message Number 8931
******************************************************************************

Author: NRCan/GSDivision

********************************************************************************
EMR ANALYSIS REPORT GPS-WEEK 1147    Dates: 01dec30  to  02jan05                
********************************************************************************

NRCan (Natural Resources Canada, formerly Energy, Mines and Resources (EMR))
615 Booth Street, Ottawa, Canada K1A 0E9
e-mail: [email-masked], [email-masked]
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
   EMR11470-6.SP3     GPS ephem. files for days 0-6, week #1147 in sp3 format 
   EMR11477.ERP       pole x,y and DUT1 solutions for week #1147
   EMR11477.SNX       station and EOP weekly combined solution in SINEX format
   EMR11477.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). 
   USNO clock error & drift were about 8.5 ns (52273) & 1.5 ns/day w.r.t.
   GPS time
   ALGO clock error & drift were about 1729.5 ns (52274) & 14.7 ns/day w.r.t.
   GPS time
 
2.      Date  |  PRN  | Action |     Period     |      Reason
     +--------+-------+--------+----------------+----------------------------+
      01dec31    15       E     00:00 to 23:45   Modeling problems
      02jan01    24       E     00:00 to 23:45   Modeling problems
                 17       R     00:00 to 03:00   Modeling Problems
                 21       R     00:00 to 03:00   Modeling Problems
      02jan02    24       E     00:00 to 23:45   Modeling problems
      02jan03    24       E     00:00 to 23:45   Modeling problems
      02jan05    24       E     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 020108
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 7.5 min. normal point interval; single 
      day (24h) arc with 6 IC and 3 rad. parameters per satellite
5. See IGS Mail#928 (April 05, 1995) and IGS Report#1488 (January 16, 1995)
   for more details regarding EMR 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  

            01dec30   01dec31   02jan01   02jan02   02jan03   02jan04   02jan05 
          ---------------------------------------------------------------------
ALGO       .44/2304  .40/2023  .41/2220  .41/2243  .40/2252  .43/2320  .42/2262 
ANKR       .44/2247  .44/1966  .45/2342  .39/2112  .42/2100  .00/   0  .00/   0 
ARTU       .45/1903  .50/2105  .44/2210  .44/2111  .44/2106  .41/1883  .42/2317 
AUCK       .52/2356  .50/1911  .50/2281  .44/2203  .67/2274  .74/2271  .70/2184 
BAHR       .00/   0  .50/1792  .65/2350  .65/2447  .82/2448  .63/2353  .54/2350 
BILI       .54/2198  .00/   0  .53/2513  .51/2317  .51/2429  .56/2395  .50/2376 
BRMU       .59/2169  .54/1895  .55/1904  .58/1963  .53/2070  .74/2035  .62/2088 
CAS1       .46/2404  .47/1836  .46/2482  .41/1900  .00/   0  .41/2113  .43/2497 
COCO       .00/   0  .58/2291  .54/2605  .50/2611  .59/2604  .49/2537  .53/2604 
DRAO       .41/2377  .43/2007  .42/2197  .43/2263  .44/2250  .44/2315  .42/2260 
EISL       .00/   0  .00/   0  .00/   0  .00/   0  .52/1507  .65/1555  .68/1447 
FAIR       .48/1734  .51/1508  .50/1743  .50/1784  .49/1915  .49/1840  .58/1855 
FORT       .00/   0  .00/   0  .00/   0  .00/   0  .75/1142  .81/1157  .00/   0 
GUAM       .78/2487 1.15/2210  .85/2580  .84/2517  .78/2576  .82/2527  .00/   0 
GUAT       .55/2345  .00/   0  .62/2425  .59/2203  .53/2329  .54/2214  .54/2367 
HOB2       .54/2122  .00/   0  .54/2525  .54/2193  .00/   0  .69/1862  .48/2529 
HRAO       .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .60/2166 
IISC       .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .64/2311  .00/   0 
IRKT       .00/   0  .00/   0  .00/   0  .60/2127  .57/2100  .55/2116  .58/1957 
KELY       .56/1713  .59/1292  .56/1468  .55/1585  .56/1912  .00/   0  .00/   0 
KERG       .00/   0  .63/1876  .71/2344  .61/2272  .73/2390  .00/   0  .63/2398 
KOKB       .64/2072  .84/1810  .60/1393  .00/   0  .00/   0  .00/   0  .00/   0 
KUNM       .50/ 740  .62/1609  .59/1352  .58/1484  .62/1386  .64/1548  .59/1496 
KWJ1       .70/1688  .00/   0  .55/1627  .62/1924  .56/1820  .61/1915  .78/1859 
MAC1       .36/1652  .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .00/   0 
MAS1       .55/2284  .87/1975  .72/2326  .53/2329  .54/2231  .49/2214  .91/2317 
MATE       .00/   0  .57/1927  .51/2206  .47/2315  .46/1990  .50/2238  .49/2319 
MAW1       .44/2192  .42/2025  .42/2442  .44/2240  .49/2598  .00/   0  .00/   0 
MCM4       .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .40/1491  .37/ 677 
MDO1       .43/1705  .44/1520  .41/1744  .38/1941  .43/2010  .45/2024  .46/1910 
MKEA       .00/   0  .00/   0  .00/   0  .00/   0  .67/2201  .73/2234  .69/2318 
MSKU       .73/2246  .00/   0  .65/2656  .67/2344  .83/2610  .00/   0  .90/2059 
NRC1       .32/2348  .31/2068  .33/2268  .31/2284  .33/2287  .34/2343  .34/2290 
NRC2       .33/2353  .31/2071  .33/2265  .32/2287  .33/2290  .34/2341  .35/2293 
NRIL       .54/2107  .00/   0  .50/2271  .49/2061  .47/2036  .47/2377  .45/2617 
NYAL       .44/1808  .40/1199  .43/1792  .43/1687  .47/2243  .47/1955  .41/2062 
ONSA       .47/2149  .45/2159  .53/2370  .47/2404  .45/2399  .44/2387  .47/2397 
RIOG       .45/ 972  .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .00/   0 
SANT       .53/2511  .51/2166  .56/2302  .55/2341  .58/2376  .56/2274  .56/2324 
SHAO       .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .00/   0  .54/1842 
STJO       .42/2353  .41/2067  .43/2302  .42/2298  .44/2298  .40/2175  .43/2299 
SUTH       .55/2174  .49/1716  .48/1863  .46/1884  .49/2084  .00/   0  .00/   0 
TOW2       .00/   0  .62/2237  .76/2637  .70/2323  .00/   0  .99/2322  .80/2515 
TSKB       .46/1588  .54/1471  .42/1472  .46/1670  .44/1688  .44/1953  .46/1805 
USNO       .46/2404  .44/2099  .45/2270  .45/2269  .46/2277  .45/2332  .48/2277 
VILL       .51/2230  .53/2104  .50/2356  .53/2348  .58/2348  .51/2351  .55/2241 
YAR1       .39/1434  .46/1875  .53/2137  .45/2140  .47/2063  .47/1985  .43/1942 
YELL       .44/1824  .42/1612  .43/2007  .44/2091  .44/2325  .46/2189  .46/2254 

PRN01 E    .64/2321  .65/2084  .67/2781  .65/2791  .66/2637  .68/2407  .72/2767 
PRN02      .46/2534  .53/2267  .54/2850  .50/2905  .48/2995  .51/2627  .56/2946 
PRN03      .50/2346  .58/2148  .52/2891  .52/2745  .49/2741  .56/2666  .56/2946 
PRN04      .49/3083  .57/2456  .49/3513  .51/3498  .56/3606  .53/3468  .50/3515 
PRN05      .48/2822  .50/2293  .52/3287  .47/3278  .51/3371  .51/3206  .50/3285 
PRN06      .49/2526  .53/2247  .51/3117  .48/3073  .51/3121  .56/3091  .51/3088 
PRN07      .47/2919  .52/2416  .49/3384  .46/3491  .60/3397  .48/3263  .53/3373 
PRN08      .46/2421  .55/2090  .48/2651  .48/2628  .53/2616  .50/2531  .50/2631 
PRN09      .51/2839  .52/2346  .53/2987  .47/3020  .54/3128  .57/3116  .52/3124 
PRN10      .50/2675  .55/2288  .54/2920  .49/3038  .55/3082  .60/3044  .53/3046 
PRN11 E    .50/2594  .53/2308  .51/3171  .51/3096  .54/3200  .57/3054  .60/3119 
PRN13 E    .49/2520  .59/2051  .54/3101  .47/2957  .53/3034  .50/2912  .55/3116 
PRN14 E    .57/2552  .58/2360  .56/3207  .50/3179  .53/3266  .54/3013  .51/2770 
PRN15      .47/2274  .00/   0  .53/2891  .53/2813  .49/2674  .60/2541  .50/2735 
PRN17      .51/2373  .58/2301  .55/3034  .54/2789  .48/2858  .58/2728  .56/2904 
PRN18      .52/2610  .55/2416  .52/3187  .52/3131  .53/3087  .58/2808  .56/3200 
PRN20      .50/2713  .52/2551  .51/3460  .49/3348  .55/3488  .53/3208  .57/3412 
PRN21      .52/2201  .57/2325  .57/3142  .51/3028  .55/3045  .60/2969  .53/3086 
PRN22      .49/2410  .56/2238  .53/2995  .50/2962  .51/2816  .52/2818  .54/2968 
PRN23      .53/2651  .52/2304  .55/3097  .50/2927  .57/2935  .55/2789  .57/3058 
PRN24      .50/3006  .52/1885  .00/   0  .00/   0  .00/   0  .53/ 560  .00/   0 
PRN25      .50/2564  .50/2365  .50/3249  .49/3229  .50/3094  .54/3074  .55/3269 
PRN26 E    .55/2261  .61/2074  .60/2645  .53/2580  .58/2657  .66/2623  .64/2697 
PRN27      .44/2389  .59/1832  .49/2788  .46/2677  .49/2687  .50/2558  .57/2593 
PRN28      .44/2751  .49/2411  .52/3004  .46/3085  .55/3106  .50/2830  .52/2843 
PRN29 E    .79/1812  .77/1930  .72/2687  .78/3105  .81/3040  .77/2689  .73/3028 
PRN30      .51/2673  .50/2251  .53/3321  .50/3359  .54/3409  .56/3278  .56/3340 
PRN31      .47/2353  .54/2185  .49/2887  .55/2783  .55/2874  .59/2581  .56/2911 

                             Pseudo Range Statistics
                                rms (cm) /  # obs

            01dec30   01dec31   02jan01   02jan02   02jan03   02jan04   02jan05 
          ---------------------------------------------------------------------
ALGO        32/2304   32/2022   42/2218   41/2243   33/2252   37/2320   30/2262 
ANKR        49/2247   52/1966   52/2343   48/2112   48/2100    0/   0    0/   0 
ARTU        37/1903   37/2059   36/2210   35/2111   36/2106   35/1883   36/2317 
AUCK        49/2284   48/1911   47/2280   46/2203   46/2223   45/2209   46/2184 
BAHR         0/   0   30/1792   29/2355   33/2448   28/2448   30/2353   28/2350 
BILI        36/2200    0/   0   35/2515   35/2320   36/2431   38/2396   36/2328 
BRMU        57/2170   57/1895   58/1906   59/1966   58/2070   56/2035   59/2088 
CAS1        23/2404   24/1836   24/2482   25/1900    0/   0   25/2113   25/2497 
COCO         0/   0   25/2291   23/2605   23/2611   23/2604   23/2537   21/2604 
DRAO        30/2377   28/2007   31/2197   31/2263   31/2250   30/2315   31/2260 
FAIR        23/1734   22/1508   24/1743   22/1787   26/1917   52/1840   33/1856 
GUAM        54/2488   52/2231   51/2583   43/2519   58/2579   53/2529    0/   0 
HOB2        43/2122    0/   0   44/2525   45/2193    0/   0   38/1863   41/2530 
IISC         0/   0    0/   0    0/   0    0/   0    0/   0   63/2311    0/   0 
IRKT         0/   0    0/   0    0/   0    0/   0    0/   0    0/   0   68/1957 
KELY        33/1714   33/1293   37/1468   35/1585   47/1912    0/   0    0/   0 
KERG         0/   0   59/1876   63/2344   69/2272    0/   0    0/   0   71/2400 
KOKB        46/2072   42/1811   38/1393    0/   0    0/   0    0/   0    0/   0 
KWJ1        41/1690    0/   0   37/1627   50/1921   39/1822   47/1916   50/1861 
MAC1        34/1638    0/   0    0/   0    0/   0    0/   0    0/   0    0/   0 
MAS1        47/2284   46/1979   46/2326   45/2329   43/2231   44/2214   45/2318 
MATE         0/   0    0/   0    0/   0    0/   0   60/1990    0/   0    0/   0 
MAW1        35/2192   34/2025   35/2441   37/2239   36/2600    0/   0    0/   0 
MCM4         0/   0    0/   0    0/   0    0/   0    0/   0   50/1489   35/ 676 
MDO1         0/   0    0/   0   70/1744   72/1941   62/2011   69/2024   64/1910 
MKEA         0/   0    0/   0    0/   0    0/   0   29/2202   30/2238   28/2324 
MSKU        37/2246    0/   0   36/2656   36/2345   35/2615    0/   0   36/2066 
NRC1        37/2348   38/2068    0/   0   52/2284   37/2287   53/2343   38/2290 
NRC2        41/2353   40/2071    0/   0   58/2287   41/2290   59/2341   40/2293 
NRIL        21/2107    0/   0   22/2271   22/2062   21/2037   21/2377   21/2617 
NYAL        37/1808   36/1199   35/1792   35/1687   37/2243   37/1955   37/2062 
ONSA        46/2149   48/2159   45/2370   42/2404   45/2399   43/2387   45/2397 
RIOG        35/ 972    0/   0    0/   0    0/   0    0/   0    0/   0    0/   0 
SANT        37/2511   36/2166   35/2302   36/2341   35/2376   33/2274   40/2324 
STJO        29/2351   33/2066   32/2304   32/2301   31/2298   31/2175   28/2299 
SUTH        54/2174   68/1716   57/1863   67/1884   58/2085    0/   0    0/   0 
TOW2         0/   0   20/2237   20/2645   19/2326    0/   0   20/2341   22/2517 
TSKB        61/1589   66/1471   59/1472   66/1670   61/1688   63/1953   62/1805 
USNO        40/2404   42/2099   44/2270   44/2269   43/2277   41/2331   44/2277 
VILL        38/2230   40/2104   40/2356   41/2348   42/2348   41/2351   40/2241 
YAR1         0/   0   63/1875    0/   0    0/   0    0/   0    0/   0    0/   0 
YELL        40/1824   37/1612   35/2007   35/2091   37/2324   36/2189   35/2254 

PRN01 E     42/2137   45/1941   42/2382   46/2449   42/2271   44/2020   44/2320 
PRN02       38/2309   48/2095   44/2429   46/2583   40/2590   41/2258   45/2451 
PRN03       48/2235   48/2025   48/2542   45/2464   43/2314   45/2245   45/2388 
PRN04       38/2792   44/2243   40/2876   42/3094   41/3126   41/2953   40/2985 
PRN05       41/2631   39/2135   40/2756   41/2914   40/2866   40/2735   40/2860 
PRN06       38/2295   39/2076   37/2654   42/2681   41/2597   43/2572   42/2650 
PRN07       40/2637   41/2195   42/2754   42/3084   40/2957   42/2797   42/2886 
PRN08       38/2198   41/1934   41/2246   45/2298   40/2211   42/2133   47/2190 
PRN09       39/2569   39/2183   40/2514   43/2705   42/2662   45/2648   44/2623 
PRN10       38/2454   47/2103   48/2446   48/2715   44/2597   41/2563   40/2536 
PRN11 E     43/2425   41/2120   42/2688   40/2694   43/2803   45/2573   42/2585 
PRN13 E     42/2331   44/1886   40/2613   46/2578   45/2656   42/2421   41/2624 
PRN14 E     38/2188   39/2071   39/2698   42/2679   41/2717   46/2430   42/2220 
PRN15       39/2044    0/   0   40/2472   40/2437   40/2106   43/2062   37/2334 
PRN17       42/2099   43/2076   39/2613   38/2431   41/2346   42/2270   38/2481 
PRN18       41/2302   38/2149   37/2662   41/2657   39/2458   43/2281   38/2594 
PRN20       46/2526   46/2360   43/2867   46/2869   43/3027   45/2679   44/2873 
PRN21       39/1928   40/2078   39/2637   42/2569   39/2439   40/2409   37/2539 
PRN22       45/2257   45/2077   41/2569   46/2593   45/2325   45/2348   39/2395 
PRN23       40/2379   40/2054   41/2625   45/2539   42/2434   42/2313   41/2487 
PRN24       38/2729   48/1675    0/   0    0/   0    0/   0   40/ 545    0/   0 
PRN25       42/2303   45/2094   40/2731   45/2743   43/2581   44/2516   40/2632 
PRN26 E     39/2138   38/1936   39/2310   41/2310   38/2193   39/2168   38/2239 
PRN27       35/2179   43/1731   39/2430   42/2390   38/2313   43/2198   43/2155 
PRN28       43/2460   45/2215   45/2506   47/2746   46/2604   47/2408   44/2383 
PRN29 E     39/1639   41/1765   42/2290   43/2627   42/2516   42/2110   39/2531 
PRN30       42/2468   40/2100   40/2771   43/2909   43/2826   46/2747   42/2847 
PRN31       41/2237   44/2028   47/2532   45/2504   45/2480   43/2200   41/2356 

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

       01dec30   01dec31   02jan01   02jan02   02jan03   02jan04   02jan05  sig 
       ------------------------------------------------------------------------
ALGO    1.7133       REF    1.7414       REF       REF       REF       REF   .2
ANKR    -.0147   -1.7478    -.0169   -1.7676   -1.7841       ---       ---   .3
ARTU    -.0675*  -1.7860*   -.0591*  -1.8037*  -1.8131*  -1.8409*  -1.8533*  .3
AUCK    -.1945*  -1.9263*   -.1932*  -1.9451*  -1.9273*  -1.9438*  -1.9754*  .3
BAHR       ---  929.1719  930.9034  929.1517  929.1418  929.1310  929.1230   .3
BILI    -.1310*      ---    -.1292*  -1.8739*  -1.9070*  -1.8949*  -1.9259*  .3
BRMU    -.0217   -1.7088     .0268   -1.7734   -1.7857   -1.8171   -1.7953   .3
CAS1    -.0131   -1.7327    -.0035   -1.7632       ---   -1.8010   -1.8260   .3
COCO       ---   -1.7708    -.0207   -1.7794   -1.7717   -1.8042   -1.8195   .3
DRAO     .6548   -1.0697     .6586   -1.0932   -1.1030   -1.1156   -1.1258   .2
FAIR     .0458   -1.6726     .0628   -1.6807   -1.6838   -1.6852*  -1.6869   .5
GUAM    -.1867   -1.9248    -.1908   -1.9458   -1.9497   -1.9683       ---   .3
HOB2    3.0607       ---    3.0840    1.3432       ---    1.3401    1.3395   .3
IISC       ---       ---       ---       ---       ---   -1.8150       ---   .3
IRKT       ---       ---       ---       ---       ---       ---   -1.6303   .3
KELY    -.0994*  -1.8033    -.0918   -1.8352   -1.8493       ---       ---   .6
KERG       ---  861.1419* 862.7249* 860.8317*      ---       ---  860.3615*  .3
KOKB    1.8898     .1657    1.8961       ---       ---       ---       ---   .6
KWJ1    -.5929*  -3.2861*   -.3369*  -2.3790*  -2.8260*  -1.7069*  -1.8178   .9
MAC1   -5.1716       ---       ---       ---       ---       ---       ---   .3
MAS1  405.4724  403.7249  405.4286  403.6591  403.6298  403.5999  403.5836   .3
MATE       ---       ---       ---       ---  169.5665       ---       ---   .3
MAW1     .0026   -1.7215    -.0042   -1.7597   -1.7898       ---       ---   .3
MCM4       ---       ---       ---       ---       ---   11.4160   39.5967   .4
MDO1       ---       ---    1.4847    -.8937   -1.2415   -1.8950   -2.8152   .3
MKEA       ---       ---       ---       ---   -1.5659*  -1.9944*  -2.0358   .3
MSKU    -.1272       ---    -.1369   -1.8823   -1.8993       ---   -1.9230   .3
NRC1    -.1790   -1.9108       ---   -1.9507   -1.9671   -1.9864   -2.0045   .2
NRC2    -.5258   -2.2573       ---   -2.2976   -2.3137   -2.3332   -2.3513   .2
NRIL    -.0666       ---    -.0867   -1.8191   -1.8520   -1.8597   -1.8714   .4
NYAL    -.1629   -1.9034*   -.1882   -1.9541   -1.9772   -2.0015   -2.0235   .3
ONSA  232.9860  231.2418  232.9483  231.1685  231.1309  231.0928  148.5845   .3
RIOG    -.1199       ---       ---       ---       ---       ---       ---   .7
SANT    -.0904   -1.8517    -.1140   -1.8908   -1.8942   -1.9126   -1.9344   .4
STJO    -.1583   -1.9272    -.2721   -2.0823   -2.1635   -2.2091   -2.2812   .2
SUTH    -.0358   -1.7536    -.0248   -1.7729   -1.8000       ---       ---   .3
TOW2       ---   -1.7229    -.0110   -1.7543       ---   -1.8044   -1.8243   .3
TSKB   -1.4803   -3.2169   -1.4930   -3.2456   -3.2635   -3.2814   -3.3007  1.0
USNO       REF   -1.7266       REF   -1.7540   -1.7661   -1.7809   -1.7939   .2
VILL    -.0742   -1.7934    -.0683   -1.8152   -1.8313   -1.8396   -1.8651   .3
YAR1       ---   -1.9360       ---       ---       ---       ---       ---   .3
YELL     .1911   -1.5331     .1964   -1.5547   -1.5644   -1.5762   -1.5860   .4

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 ANKR ARTU AUCK BAHR BILI BRMU CAS1 COCO DRAO EISL FAIR FORT GUAM
global: GUAT HOB2 HRAO IISC IRKT KELY KERG KOKB KUNM KWJ1 MAC1 MAS1 MATE MAW1
global: MCM4 MDO1 MKEA MSKU NRC1 NRC2 NRIL NYAL ONSA RIOG SANT SHAO STJO SUTH
global: TOW2 TSKB USNO VILL YAR1 YELL
--

Geodetic Survey of Canada
Ottawa, Ontario, Canada
Internet: [email-masked]