[IGSREPORT-10086] Wk 1208 EMR Analysis Report
Caroline Huot
huot at geod.nrcan.gc.ca
Tue Mar 18 06:05:11 PST 2003
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IGS Electronic Report 18 Mar 06:05:13 PST 2003 Message Number 10086
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Author: NRCan/GSDivision
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EMR ANALYSIS REPORT GPS-WEEK 1208 Dates: 03mar02 to 03mar08
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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
EMR12080-6.SP3 GPS ephem. files for days 0-6, week #1208 in sp3 format
EMR12087.ERP pole x,y and DUT1 solutions for week #1208
EMR12087.SNX station and EOP weekly combined solution in SINEX format
EMR12087.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 102.0 ns (52700) & 41.1 ns/day w.r.t.
GPS time
NRC1 clock error & drift were about -1020.7 ns (52705) & -7.8 ns/day w.r.t.
GPS time
2. Date | PRN | Action | Period | Reason
+--------+-------+--------+----------------+----------------------------+
03mar02 17 R 00:00 to 02:00 Modeling Problems
03mar03 15 E 00:00 to 23:45 Modeling problems
17 E 00:00 to 23:45 Modeling problems
03mar06 17 E 00:00 to 23:45 Modeling problems
03mar07 06 E 00:00 to 23:45 Ref Nanu 2003023
15 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 030317
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
03mar02 03mar03 03mar04 03mar05 03mar06 03mar07 03mar08
---------------------------------------------------------------------
ALGO .40/2436 .39/2213 .39/2427 .40/2433 .41/2303 .38/2200 .38/2399
AREQ .42/2008 .43/1858 .45/2084 .47/2187 .44/1957 .45/1977 .47/1913
ARTU .43/2408 .44/2396 .42/1959 .46/2218 .00/ 0 .45/2274 .45/2449
ASC1 .59/2347 .72/2314 .74/2514 .75/2448 .67/2246 .63/1862 .69/2610
AUCK .72/1983 .55/1981 .53/2075 .52/2153 .56/2048 .53/2006 .52/2145
BAHR .46/2592 .45/2343 .51/2557 .49/2482 .50/2517 .51/2228 .49/2544
BJFS .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .45/2250
CAS1 .42/2243 .39/1992 .41/2100 .49/2061 .43/1849 .43/2253 .43/1835
CEDU .47/2456 .41/2274 .43/2447 .46/2459 .44/2360 .41/2073 .49/2454
COCO .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .67/2202 .72/2512
CRO1 .65/2092 .64/1948 .56/2061 .60/2152 .53/1967 .61/1950 .61/2022
DGAR .91/2400 .76/1995 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0
DRAO .48/2604 .46/2330 .47/2593 .51/2605 .47/2451 .44/2367 .43/2571
EISL .00/ 0 .00/ 0 .00/ 0 .53/1898 .65/1780 .62/1639 .51/1727
FAIR .53/2440 .56/2145 .52/2108 .53/2273 .55/1824 .54/2320 .55/2501
FORT .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .87/1892 .90/2013
GUAM .64/2629 .67/2383 .65/2631 .72/2450 .78/2418 .00/ 0 .00/ 0
GUAT .52/1496 .56/1766 .58/2504 .64/2250 .61/2199 .64/1647 .62/2409
IISC .00/ 0 .00/ 0 .00/ 0 .00/ 0 .61/2420 .61/2253 .61/2441
IRKT .47/2364 .49/2001 .48/2357 .51/2353 .52/2272 .00/ 0 .00/ 0
KELY .61/2044 .64/1776 .63/2000 .64/1965 .61/1629 .59/1829 .70/1436
KIT3 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .47/ 630 .54/2190
KOUR .66/2039 .66/1862 .61/2127 .75/2416 .66/2436 .00/ 0 .00/ 0
LPGS .57/1312 .50/ 791 .56/1740 .60/1931 .70/1822 .58/1485 .56/1914
MAC1 .43/2185 .35/1925 .40/2209 .48/2265 .38/1828 .41/2114 .37/2247
MAG0 .47/1940 .47/2296 .49/2553 .50/2547 .47/2299 .48/2214 .48/2438
MAS1 .41/2082 .37/2187 .38/2230 .41/1625 .39/2012 .45/2121 .45/2344
MATE .45/2070 .53/1901 .47/1876 .54/2356 .46/2083 .47/1893 .48/2057
MAUI .46/2230 .41/2203 .41/2255 .43/2492 .42/2378 .46/2132 .55/2448
MCM4 .33/1709 .34/1628 .34/1722 .36/1711 .32/1441 .34/1845 .35/1695
NKLG .76/1882 .82/1880 .85/2488 .94/2490 .71/1882 .87/1899 .76/1930
NRC1 .41/2481 .35/2256 .36/2479 .36/2486 .36/2368 .35/2246 .36/2438
NTUS .79/2614 .70/2561 .67/2796 .71/2812 .71/2676 .00/ 0 .00/ 0
NYAL .42/2562 .43/2223 .42/2543 .45/2533 .45/2377 .43/2328 .45/2589
OHI2 .46/2559 .45/2456 .45/2281 .47/2284 .00/ 0 .00/ 0 .00/ 0
ONSA .41/2470 .41/2316 .41/2396 .43/2414 .44/2267 .45/2347 .46/2408
PIE1 .45/2258 .43/1975 .45/2268 .45/2228 .42/2001 .46/2054 .47/2245
PIMO .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .69/1675 .79/1897
RIOG .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .50/1240 .43/2396
SIMO .56/2028 .56/1949 .53/1926 .56/2074 .58/2061 .60/1952 .59/2178
STJO .38/2354 .42/2311 .42/2540 .41/2544 .46/2426 .46/2317 .47/2523
SYOG .69/2118 .65/1966 .66/1720 .00/ 0 .00/ 0 .00/ 0 .00/ 0
THTI .00/ 0 .00/ 0 .79/2474 .82/2466 .81/2377 .69/2247 .60/2379
TSKB .46/2661 .47/2429 .45/2662 .56/2372 .00/ 0 .00/ 0 .00/ 0
ULAB .41/2505 .41/ 884 .42/2228 .46/2235 .44/1402 .41/1351 .00/ 0
USNO .53/2021 .48/2202 .46/2297 .52/2374 .53/2294 .49/2187 .49/2371
VESL .00/ 0 .00/ 0 .00/ 0 .00/ 0 .61/2498 .00/ 0 .00/ 0
YELL .43/2355 .44/1950 .42/2044 .41/2270 .42/1790 .45/2174 .44/2491
PRN01 .51/3169 .51/3091 .53/3002 .51/3072 .54/2947 .50/2998 .53/3107
PRN02 .52/3313 .50/3191 .57/3258 .77/2974 .63/2379 .57/3024 .54/3215
PRN03 .52/3163 .53/3039 .50/3068 .54/3020 .53/2961 .52/2899 .52/3049
PRN04 .61/3159 .55/3131 .56/3083 .58/3205 .56/3118 .54/2912 .57/3226
PRN05 .54/2913 .49/2862 .54/3089 .53/3246 .55/3131 .51/2860 .51/2990
PRN06 .52/3259 .49/3160 .54/3320 .55/3325 .57/3242 .00/ 0 .52/3296
PRN07 .56/2762 .58/3002 .53/3016 .56/3078 .57/3027 .50/2685 .58/3214
PRN08 .50/2983 .50/2936 .49/3118 .51/3124 .56/2963 .53/3013 .53/3169
PRN09 .53/3046 .54/2993 .53/3160 .59/3215 .58/3062 .52/3069 .50/3264
PRN10 .56/3210 .52/3201 .51/3432 .53/3502 .57/3257 .57/3399 .55/3552
PRN11 .57/3044 .60/2964 .54/3007 .56/2964 .56/2962 .56/2924 .56/3073
PRN13 .54/3025 .53/3062 .54/2947 .60/3130 .55/2990 .52/3196 .54/3279
PRN14 .52/3039 .49/2820 .51/3092 .59/3142 .53/2898 .52/2871 .55/2910
PRN15 .50/3179 .00/ 0 .52/3209 .53/3159 .55/2963 .00/ 0 .70/2125
PRN16 .54/3183 .51/3078 .50/3103 .56/3147 .56/2960 .59/2796 .54/3004
PRN17 .62/2868 .00/ 0 .52/3215 .52/3248 .00/ 0 .66/3098 .65/3126
PRN18 .49/2867 .54/2991 .52/3200 .55/3181 .52/2792 .52/3151 .50/3002
PRN20 .59/3035 .58/3126 .57/3077 .63/3087 .57/2959 .58/3035 .56/2984
PRN22 .46/1880 .44/1661 .44/1756 .45/1750 .47/1535 .42/1377 .44/1420
PRN23 .51/3092 .52/3021 .55/3334 .57/3347 .54/2929 .54/3231 .55/3147
PRN24 .48/3144 .50/3122 .54/3288 .54/3346 .51/3025 .50/2872 .52/3176
PRN25 .55/3291 .54/3083 .52/3189 .57/3250 .54/3040 .57/2957 .54/3038
PRN26 .49/3231 .50/3198 .48/3323 .46/3384 .49/3205 .51/3229 .50/3366
PRN27 .49/2983 .47/3020 .46/3066 .50/3011 .53/2849 .51/2970 .51/3244
PRN28 .56/2823 .51/2836 .50/2912 .49/3016 .51/2727 .47/2567 .50/2953
PRN29 .47/3210 .49/3241 .52/3290 .50/3351 .51/3094 .50/3297 .50/3363
PRN30 .53/3117 .52/3066 .52/3082 .55/3147 .57/3115 .53/2955 .52/3035
PRN31 .52/2989 .51/2971 .51/2635 .54/2891 .50/2828 .52/2038 .54/3082
Pseudo Range Statistics
rms (cm) / # obs
03mar02 03mar03 03mar04 03mar05 03mar06 03mar07 03mar08
---------------------------------------------------------------------
ALGO 36/2436 75/2213 57/2427 33/2433 64/2303 0/ 0 36/2399
AREQ 24/2008 24/1858 21/2084 22/2187 19/1957 21/1977 24/1913
ARTU 23/2408 23/2396 23/1959 22/2218 0/ 0 22/2274 23/2449
ASC1 75/2348 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0
AUCK 50/1984 49/1981 49/2075 52/2153 49/2048 49/2006 49/2145
BAHR 39/2592 39/2343 39/2557 39/2482 38/2517 38/2228 38/2544
BJFS 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 22/2250
CAS1 27/2243 27/1992 27/2100 28/2061 26/1849 27/2253 27/1835
CEDU 39/2456 59/2274 33/2447 33/2459 30/2360 33/2073 35/2454
COCO 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 27/2202 24/2514
CRO1 46/2095 46/1948 44/2062 41/2152 42/1967 42/1950 42/2022
DGAR 37/2404 41/1995 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0
DRAO 43/2604 43/2330 41/2593 41/2604 45/2450 38/2367 38/2571
EISL 0/ 0 0/ 0 0/ 0 61/1897 59/1780 59/1637 55/1727
FAIR 25/2441 26/2145 25/2108 32/2273 36/1824 35/2320 40/2501
GUAM 58/2629 58/2383 61/2631 64/2450 60/2418 0/ 0 0/ 0
GUAT 67/1493 72/1763 0/ 0 0/ 0 74/2190 65/1640 0/ 0
IISC 0/ 0 0/ 0 0/ 0 0/ 0 68/2420 64/2253 63/2441
IRKT 51/2365 52/2001 53/2358 54/2353 54/2272 0/ 0 0/ 0
KELY 29/2044 29/1776 27/2001 28/1965 31/1629 31/1830 31/1437
KIT3 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 44/ 630 45/2190
KOUR 51/2042 51/1862 46/2127 45/2420 43/2438 0/ 0 0/ 0
LPGS 50/1308 49/ 787 57/1726 56/1921 55/1815 53/1478 54/1903
MAC1 41/2180 35/1923 47/2202 46/2262 32/1828 37/2112 36/2244
MAG0 40/1940 41/2296 41/2553 39/2547 42/2299 42/2214 40/2438
MAS1 50/2082 49/2187 54/2230 53/1625 50/2012 53/2121 53/2344
MATE 63/2070 59/1900 58/1876 67/2356 66/2083 65/1893 62/2057
MAUI 36/2230 42/2203 38/2255 39/2492 40/2378 37/2132 38/2448
MCM4 52/1708 49/1626 49/1721 55/1709 50/1438 53/1840 55/1683
NKLG 73/1882 75/1882 78/2488 73/2494 70/1882 71/1899 69/1932
NRC1 45/2481 53/2256 52/2479 52/2486 0/ 0 71/2246 43/2438
NTUS 64/2617 63/2561 65/2797 66/2812 65/2676 0/ 0 0/ 0
NYAL 37/2562 37/2223 37/2543 37/2533 38/2377 38/2328 39/2589
OHI2 36/2560 37/2456 36/2281 38/2284 0/ 0 0/ 0 0/ 0
ONSA 43/2470 44/2316 44/2396 45/2414 43/2267 44/2347 44/2408
PIE1 48/2258 50/1975 51/2268 48/2228 48/2001 50/2054 53/2246
PIMO 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 23/1675 24/1904
RIOG 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 37/1240 35/2396
SIMO 44/2028 40/1949 41/1927 41/2074 46/2061 47/1952 49/2178
STJO 26/2354 31/2311 25/2540 25/2544 29/2425 31/2317 30/2523
SYOG 62/2118 58/1966 50/1721 0/ 0 0/ 0 0/ 0 0/ 0
THTI 0/ 0 0/ 0 78/2475 0/ 0 0/ 0 0/ 0 0/ 0
TSKB 28/2661 28/2429 27/2662 27/2374 0/ 0 0/ 0 0/ 0
ULAB 51/2504 47/ 884 51/2228 48/2235 49/1402 44/1351 0/ 0
USNO 45/2021 47/2202 46/2242 51/2319 52/2293 49/2187 50/2371
VESL 0/ 0 0/ 0 0/ 0 0/ 0 50/2498 0/ 0 0/ 0
YELL 34/2355 56/1950 49/2044 37/2270 41/1790 56/2174 40/2491
PRN01 44/3169 45/3021 46/2866 42/2868 49/2739 43/2693 40/2795
PRN02 45/3316 48/3126 46/3121 44/2726 48/2149 43/2694 42/2894
PRN03 46/3163 49/2932 44/2907 42/2775 47/2716 40/2588 42/2739
PRN04 47/3157 45/3036 51/2896 46/2944 50/2858 47/2578 43/2918
PRN05 46/2914 47/2776 53/2906 48/2969 55/2873 49/2492 45/2607
PRN06 45/3259 46/3091 45/3124 42/3049 47/2922 0/ 0 40/2908
PRN07 47/2764 51/2875 50/2771 48/2775 52/2756 51/2461 46/2816
PRN08 49/2984 49/2843 48/2951 46/2891 47/2718 42/2679 39/2807
PRN09 45/3045 44/2867 44/2904 45/2924 51/2768 46/2657 43/2807
PRN10 44/3210 46/3114 46/3232 47/3231 49/2986 47/3011 43/3154
PRN11 48/3044 49/2845 50/2808 47/2699 52/2711 48/2609 44/2748
PRN13 46/3025 53/2996 49/2824 51/2924 53/2751 50/2900 47/3028
PRN14 51/3035 53/2750 53/2897 48/2842 51/2598 49/2556 47/2564
PRN15 46/3179 0/ 0 46/3045 44/2926 47/2686 0/ 0 44/1951
PRN16 46/3183 46/3015 44/2975 44/2897 48/2711 44/2444 44/2693
PRN17 45/2868 0/ 0 47/3006 47/2982 0/ 0 47/2687 47/2719
PRN18 46/2866 45/2889 47/2957 49/2853 48/2467 47/2772 43/2576
PRN20 50/3037 53/3065 53/2945 51/2885 53/2744 47/2815 43/2723
PRN22 45/1880 50/1594 44/1684 45/1679 50/1396 42/1240 42/1330
PRN23 45/3090 49/2939 44/3088 47/3036 47/2616 47/2882 39/2721
PRN24 46/3144 45/3023 51/3081 48/3052 50/2743 48/2609 41/2822
PRN25 48/3291 47/3015 48/3054 46/2958 48/2746 44/2666 44/2731
PRN26 39/3232 43/3099 42/3072 38/3076 44/2922 42/2845 40/2976
PRN27 44/2983 49/2924 45/2900 43/2789 47/2629 43/2664 41/2903
PRN28 50/2823 47/2698 50/2670 49/2728 55/2463 49/2370 44/2642
PRN29 39/3211 44/3106 44/3063 43/3073 45/2817 44/2898 39/2960
PRN30 45/3117 49/2995 48/2885 46/2838 54/2836 48/2660 46/2679
PRN31 44/2992 47/2908 42/2551 41/2697 45/2626 43/1730 39/2774
Station Clock Offsets Solution for 0h UT
(microsecond / sigma in ns)
03mar02 03mar03 03mar04 03mar05 03mar06 03mar07 03mar08 sig
------------------------------------------------------------------------
ALGO REF REF REF REF REF --- REF --
AREQ -.2329 -.2485 -.2882 -.3370 -.3665 .9045 -.4482 .4
ARTU -.1347 -.1907 -.2386 -.2736 --- .9625 -.3936 .4
ASC1 17.7889* --- --- --- --- --- --- .2
AUCK -.1915* -.2415* -.3013* -.3146* -.3449* .9277* -.4150* .2
BAHR 946.5461 946.4939 946.4470 946.3947 946.3363 947.6210 946.2340 .2
BJFS --- --- --- --- --- --- 555.9785 .4
CAS1 -.0985 -.1515 -.1759 -.2235 -.2840 1.0150 -.3441 .3
CEDU -.0999 -.1658 -.2325 -.2417 -.3041 .9979 -.3536 .2
COCO --- --- --- --- --- 1.0072 -.3718 .2
CRO1 -.1775 -.2250 -430.2292* -.3125 -.3713 .9316 -.4430 .3
DGAR -.1075 -.3889* --- --- --- --- --- .4
DRAO .1054 .0713 .0408 .0083 -.0249 1.2752 -.0871 .2
EISL --- --- --- -.3972 -.4401 .8808 -.5149 .3
FAIR 942.4472 942.4112 942.3797 942.3474 942.3134 943.6127 942.2500 .3
GUAM -.2204 -.2570 -.3166 -.3464 -.4146 --- --- .2
GUAT 807.6273 76.4957 --- --- 385.1635 270.9290 --- .3
IISC --- --- --- --- -.3167 .9633 -.4013 .2
IRKT -.2079 -.2558 -.3004 -.3468 -.3948 --- --- .2
KELY -.1648 -.2151* -.2606 -.2936 -.3337 .9475 -.4175* .5
KIT3 --- --- --- --- --- --- -.3419 .3
KOUR 196.4300 196.2923 196.1540* 196.0081 195.8556 --- --- .4
LPGS -.1411 -.1652 -.2232 -.2478 -.2741 .9991 -.3546 .3
MAC1 -.1118 -.1492 -.2087 -.2243 -.3033 1.0128 -.3720 .3
MAG0 -.2007* -.1982* -.2502* -.3004* -.3443* .9396* -.4239* .2
MAS1 781.5817 781.4717 781.3661 781.2582* 961.8569 963.0834* 961.6500 .3
MATE 485.2533 485.1824 485.1158 485.0476 484.9753 486.2372 484.8368 .3
MAUI -.2193* -.2970* -.3336* -.3978* -.4342* .8604* -.4995* .2
MCM4 114.8379 14.3964 31.6902* 35.4274 86.7030 139.2764 189.4791 .4
NKLG 261.9570* 76.7545* 894.2357* 715.2615* 536.1076* 357.6814* 180.2456* .2
NRC1 -1.0843 -1.1384 -1.1838 -1.2302 --- REF -1.3774 .2
NTUS -.1296 -.1632 -.1921 -.2483 -.2936 --- --- .2
NYAL -.3343 -.0002 -.0538 -.1082 -.1636 1.1163 -.2673 .3
OHI2 -.1010 -.1587 -.2058 -.2092 --- --- --- .2
ONSA 779.7628 779.6328 669.3723 669.3260 669.2792 670.5667 669.1920 .2
PIE1 -.4372 -.3799 -.4174 -.4568 -.4973 .7965 -.5722 .3
PIMO --- --- --- --- --- .8998* -.4388 .9
RIOG --- --- --- --- --- --- -.4151 .2
SIMO -.4835 -.1743 -.2680 -.2305 -.4070 .9676 -.5052 .3
STJO -.1799 -.2431 -.3002 -.4429 -.5060 .7660 -.6262 .2
SYOG 159.9123* 159.8720 159.8322 --- --- --- --- 1.2
THTI --- --- 962.1629* --- --- --- --- .2
TSKB .1077 .0690 .0204 -.0215 --- --- --- .2
ULAB -.1085 -.1680 -.2029 -.2078 -.3038 1.0191* --- .3
USNO .5348 .4912 .4515 .4105 .3675 1.6582 .2868 .3
VESL --- --- --- --- 326.5497 --- --- .3
YELL .1397 .1039 .0678 .0324 -.0036 1.2944 -.0730 .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 AREQ ARTU ASC1 AUCK BAHR BJFS CAS1 CEDU COCO CRO1 DGAR DRAO EISL
global: FAIR FORT GUAM GUAT IISC IRKT KELY KIT3 KOUR LPGS MAC1 MAG0 MAS1 MATE
global: MAUI MCM4 NKLG NRC1 NTUS NYAL OHI2 ONSA PIE1 PIMO RIOG SIMO STJO SYOG
global: THTI TSKB ULAB USNO VESL YELL
--
#####################################
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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