[IGSREPORT-7822] Wk 1091 EMR Analysis Report
Pierre Tetreault
pierre at geod.nrcan.gc.ca
Fri Dec 15 11:29:43 PST 2000
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IGS Electronic Report 15 Dec 11:29:48 PST 2000 Message Number 7822
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Author: NRCan/GSDivision
********************************************************************************
EMR ANALYSIS REPORT GPS-WEEK 1091 Dates: 00dec03 to 00dec09
********************************************************************************
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
EMR10910-6.SP3 GPS ephem. files for days 0-6, week #1091 in sp3 format
EMR10917.ERP pole x,y and DUT1 solutions for week #1091
EMR10917.SNX station and EOP weekly combined solution in SINEX format
EMR10917.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 2113 ns (51881) & 10 ns/day w.r.t.
GPS time.
2. Date | PRN | Action | Period | Reason
+--------+-------+--------+----------------+----------------------------+
00dec05 | 15 | R | 00:00 to 03:00 | Modeling Problems
00dec06 | 17 | R | 00:00 to 23:45 | Modeling Problems
00dec08 | 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 001215
2. Software used : GIPSY/OASIS II (UNIX )
3. Definition of Terrestrial frame:
origin and orientation : Nominally IGS97
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
00dec03 00dec04 00dec05 00dec06 00dec07 00dec08 00dec09
---------------------------------------------------------------------
ALGO .32/1424 .35/1504 .38/1507 .34/1555 .33/1463 .34/1488 .34/1553
AREQ .46/1505 .53/1264 .00/ 0 .52/1147 .56/1609 .54/1293 .52/1648
ARTU .40/1503 .41/1428 .42/1460 .42/1549 .42/1487 .44/1490 .42/1561
AUCK .48/1326 .41/1355 .42/1355 .44/1346 .43/1366 .38/1353 .41/1377
BAHR .44/ 733 .00/ 0 .59/1278 .00/ 0 .52/1447 .00/ 0 .00/ 0
BRMU .39/1295 .65/1310 .55/1351 .45/1349 .52/1329 .53/1308 .49/1327
CAS1 .43/1282 .42/1517 .43/1513 .44/1415 .46/1320 .44/1325 .47/1418
CHUR .43/1309 .43/1259 .52/1449 .45/1441 .45/1335 .46/1244 .44/1269
COCO .47/1210 .49/1479 .60/1698 .00/ 0 .00/ 0 .00/ 0 .00/ 0
DRAO .41/1548 .41/1416 .43/1460 .44/1491 .43/1444 .42/1283 .40/1541
EISL .51/ 973 .55/ 807 .58/ 986 .60/ 951 .00/ 0 .00/ 0 .00/ 0
FAIR .52/1226 .70/1230 .52/1318 .46/1322 .00/ 0 .00/ 0 .52/ 973
FORT .61/ 669 .69/ 708 .65/ 731 .00/ 0 .74/ 896 .00/ 0 .00/ 0
GUAM .00/ 0 .00/ 0 .00/ 0 .00/ 0 .93/1540 .00/ 0 .00/ 0
HOB2 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .53/1491 .49/1605
IISC .00/ 0 .00/ 0 .00/ 0 .00/ 0 .59/ 569 .00/ 0 .49/1100
IRKT .48/1317 .75/ 389 .46/1308 .47/1398 .47/1434 .53/1230 .47/1446
KERG .00/ 0 .00/ 0 .00/ 0 .62/1565 .61/1530 .58/1481 .58/1547
KOUR .00/ 0 .96/1102 1.00/1334 .00/ 0 .95/1293 .83/1063 .78/ 693
KWJ1 .82/1074 .87/ 974 .00/ 0 .66/1114 .79/1063 .64/1013 .84/ 925
LHAS .47/1292 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0
MAC1 .51/1275 .40/1292 .42/1381 .40/1358 .40/1351 .40/1308 .42/1358
MALI .76/1029 .00/ 0 .78/1102 .00/ 0 .85/1323 .79/1272 .90/1040
MATE .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .52/1340 .50/1480
MAW1 .41/1447 .41/1390 .46/1302 .00/ 0 .00/ 0 .00/ 0 .00/ 0
MCM4 .58/ 831 .53/ 906 .48/1002 .45/ 878 .55/ 746 .52/ 789 .48/ 800
MKEA .62/1491 .64/1434 .68/1418 .62/1178 .65/1397 .68/1397 .74/1571
NKLG .74/ 164 .67/ 505 .78/1618 .79/1492 .84/1749 .85/1632 .90/1598
NLIB .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .41/1283 .62/1266
NRC1 .34/1522 .32/1419 .36/1482 .31/1520 .32/1510 .32/1498 .00/ 0
NRC2 .00/ 0 .32/1418 .37/1565 .31/1368 .32/1512 .32/1498 .00/ 0
NYAL .37/1093 .40/1298 .44/1636 .41/1607 .42/1390 .42/1254 .42/1272
ONSA .45/1496 .50/1434 .50/1576 .46/1503 .48/1584 .46/1443 .45/1573
PERT .00/ 0 .00/ 0 .00/ 0 .00/ 0 .53/1284 .56/1245 .58/ 247
PIE1 .36/1228 .41/1156 .43/1264 .43/1360 .44/1397 .42/1331 .41/1389
RBAY .00/ 0 .48/ 890 .61/1363 .58/1133 .64/1145 .57/1167 .54/1345
RIOG .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .46/1508 .44/1106
SANT .44/1525 .52/1383 .53/1469 .52/1456 .54/1035 .00/ 0 .47/1132
SEY1 .61/ 744 .62/ 464 .00/ 0 .73/ 918 .00/ 0 .00/ 0 .00/ 0
STJO .40/1362 .45/1539 .49/1467 .52/1467 .46/1517 .66/1509 .40/1590
SUTH .42/1120 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0
THTI .00/ 0 .00/ 0 .79/1171 .84/1371 .79/1563 .74/1510 .76/1508
THU1 .70/1400 .67/1343 .64/1448 .63/1599 .71/1377 .74/1345 .65/1234
TIDB .53/1527 .48/1328 .65/1513 .69/1223 .62/1164 .00/ 0 .00/ 0
TIXI .46/1542 .45/1569 .51/1658 .43/1522 .46/1544 .44/1444 .44/1588
TSKB .47/1050 .43/1232 .44/1373 .45/1418 .40/1399 .42/1363 .41/1437
USNO .52/1553 .54/1494 .58/1551 .58/1550 .00/ 0 .56/1503 .58/1542
VILL .00/ 0 .52/1434 .70/1316 .52/1356 .61/1441 .69/1084 .50/ 533
YAR1 .36/ 913 .36/ 480 .55/ 758 .47/ 708 .00/ 0 .00/ 0 .00/ 0
YELL .40/1285 .41/1295 .43/1507 .41/1465 .39/1384 .41/1229 .40/1335
ZWEN .00/ 0 .00/ 0 .00/ 0 .00/ 0 .00/ 0 .55/1270 .53/1564
PRN01 .41/1602 .47/1527 .54/1832 .48/1544 .54/1759 .56/1718 .59/1728
PRN02 .42/1905 .50/1945 .47/2029 .45/1835 .54/2072 .48/2111 .51/1831
PRN03 E .52/1624 .48/1695 .54/1783 .51/1655 .57/1704 .60/1690 .53/1657
PRN04 .50/1815 .49/1901 .55/2079 .53/1995 .59/2016 .55/2066 .59/2091
PRN05 .48/1792 .49/1781 .53/1921 .43/1716 .58/1956 .53/1964 .50/1871
PRN06 E .54/1515 .57/1590 .61/1626 .56/1637 .66/1855 .57/1732 .60/1710
PRN07 E .47/1829 .52/1913 .59/1936 .50/1876 .61/1876 .58/2204 .55/1984
PRN08 .44/1792 .48/1759 .57/1999 .47/1820 .58/1972 .55/1922 .54/1809
PRN09 .50/1914 .61/1946 .54/1948 .54/1886 .52/1836 .51/2070 .58/1923
PRN10 E .47/1514 .55/1511 .57/1710 .56/1550 .64/1768 .56/1853 .58/1799
PRN11 .50/1911 .57/2056 .50/2089 .54/2058 .56/2157 .50/2134 .54/2031
PRN13 .49/1507 .46/1494 .57/1696 .47/1562 .55/1560 .59/1729 .58/1742
PRN15 .44/1669 .55/1637 .68/1569 .52/1560 .63/1796 .00/ 0 .53/1745
PRN17 .50/1560 .54/1625 .52/1733 .65/1542 .54/1748 .47/1675 .46/1758
PRN19 .44/1585 .45/1653 .51/1858 .47/1692 .52/1823 .47/1716 .55/1731
PRN20 E .53/1743 .48/1849 .54/2039 .56/1883 .54/1747 .58/2101 .58/1938
PRN21 E .45/1514 .51/1510 .57/1752 .53/1568 .68/1666 .55/1640 .44/1666
PRN22 .47/1290 .46/1270 .64/1899 .50/1687 .60/1762 .56/1802 .51/1695
PRN23 E .62/1528 .65/1477 .71/1777 .61/1528 .64/1724 .56/1706 .54/1782
PRN24 .44/1700 .50/1857 .55/2010 .55/1897 .61/1964 .57/2117 .54/2017
PRN25 .51/1742 .52/1748 .54/1913 .53/1805 .57/1948 .59/1939 .57/1946
PRN26 .51/1719 .52/1730 .53/1887 .52/1926 .57/1994 .56/1989 .55/1862
PRN27 .42/1565 .44/1588 .48/1791 .45/1683 .49/1765 .47/1865 .50/1776
PRN28 .52/1666 .50/1793 .53/1883 .49/1709 .56/1738 .56/1947 .54/1904
PRN29 .47/1741 .00/ 0 .57/2025 .58/1856 .56/1904 .53/1860 .53/2018
PRN30 .57/1871 .61/1849 .56/2026 .48/1802 .60/1934 .55/1943 .54/1808
PRN31 E .46/1670 .47/1741 .53/1878 .53/1821 .57/1893 .53/1791 .53/1669
Pseudo Range Statistics
rms (cm) / # obs
00dec03 00dec04 00dec05 00dec06 00dec07 00dec08 00dec09
---------------------------------------------------------------------
ALGO 34/1424 28/1504 28/1507 26/1555 24/1463 31/1488 35/1553
AREQ 24/1505 25/1264 0/ 0 23/1147 26/1609 27/1293 25/1648
ARTU 30/1503 30/1419 29/1447 32/1549 31/1487 30/1490 30/1561
AUCK 54/1326 51/1356 57/1355 56/1346 54/1366 46/1353 54/1377
BAHR 28/ 733 0/ 0 30/1278 0/ 0 28/1447 0/ 0 0/ 0
BRMU 62/1296 54/1310 50/1352 48/1349 50/1330 50/1309 50/1327
CAS1 23/1282 22/1517 28/1513 23/1415 23/1320 23/1325 26/1418
CHUR 20/1309 20/1259 18/1449 19/1441 20/1335 20/1244 29/1269
COCO 20/1210 27/1479 28/1698 0/ 0 0/ 0 0/ 0 0/ 0
DRAO 33/1548 34/1416 35/1460 35/1491 36/1444 34/1283 36/1541
EISL 74/ 973 70/ 807 76/ 986 74/ 951 0/ 0 0/ 0 0/ 0
FAIR 34/1227 39/1230 24/1318 25/1325 0/ 0 0/ 0 23/ 978
GUAM 0/ 0 0/ 0 0/ 0 0/ 0 41/1541 0/ 0 0/ 0
IISC 0/ 0 0/ 0 0/ 0 0/ 0 73/ 570 0/ 0 70/1101
IRKT 57/1318 51/ 389 61/1316 50/1398 56/1435 51/1230 48/1446
KERG 0/ 0 0/ 0 0/ 0 56/1565 55/1530 49/1481 47/1547
KOUR 0/ 0 47/1105 48/1340 0/ 0 47/1294 41/1063 37/ 693
LHAS 30/1292 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0
MAC1 26/1275 27/1292 25/1381 26/1358 26/1351 25/1308 27/1358
MATE 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 61/1340 58/1481
MAW1 30/1447 31/1390 31/1302 0/ 0 0/ 0 0/ 0 0/ 0
MCM4 53/ 831 48/ 906 47/1002 58/ 878 47/ 746 49/ 789 47/ 800
MKEA 21/1491 23/1435 25/1418 22/1178 22/1398 21/1397 23/1571
NKLG 73/ 164 69/ 506 69/1619 65/1492 69/1750 68/1632 66/1600
NLIB 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 54/1285 47/1266
NRC1 49/1521 35/1419 31/1482 57/1520 38/1510 36/1498 0/ 0
NRC2 0/ 0 40/1418 35/1565 59/1368 43/1512 40/1498 0/ 0
NYAL 41/1093 44/1298 46/1636 44/1607 40/1390 40/1254 42/1272
ONSA 38/1496 37/1434 36/1576 37/1503 36/1584 37/1443 36/1573
PERT 0/ 0 0/ 0 0/ 0 0/ 0 55/1284 50/1245 39/ 247
PIE1 70/1228 58/1156 55/1264 54/1360 56/1397 60/1330 56/1389
RBAY 0/ 0 60/ 890 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0
RIOG 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 30/1508 30/1106
SANT 37/1526 35/1383 51/1469 43/1456 29/1035 0/ 0 41/1132
STJO 29/1361 33/1539 32/1467 30/1467 26/1517 37/1509 24/1590
THTI 0/ 0 0/ 0 80/1174 70/1371 74/1563 76/1510 74/1508
THU1 37/1400 36/1343 37/1448 35/1599 37/1377 37/1345 36/1235
TIDB 24/1527 23/1328 24/1513 23/1224 23/1164 0/ 0 0/ 0
TIXI 34/1542 36/1569 36/1658 33/1522 34/1547 36/1444 34/1588
TSKB 62/1050 67/1232 57/1373 54/1418 61/1399 60/1363 60/1437
USNO 38/1553 38/1494 38/1551 40/1551 0/ 0 39/1503 39/1542
VILL 0/ 0 26/1434 25/1316 25/1356 24/1441 32/1084 25/ 533
YAR1 64/ 913 67/ 480 55/ 758 57/ 708 0/ 0 0/ 0 0/ 0
YELL 28/1285 30/1295 34/1507 27/1465 33/1384 28/1229 27/1335
ZWEN 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 41/1270 41/1564
PRN01 42/1447 40/1460 47/1741 44/1463 44/1597 47/1540 46/1549
PRN02 33/1761 36/1853 39/1907 39/1763 41/1911 46/1968 46/1684
PRN03 E 45/1353 41/1576 45/1637 43/1492 44/1499 44/1460 43/1434
PRN04 37/1693 36/1843 39/1985 40/1880 41/1855 38/1876 39/1904
PRN05 42/1643 41/1689 39/1841 40/1587 42/1780 47/1777 46/1697
PRN06 E 40/1322 40/1503 41/1503 44/1488 41/1646 44/1498 43/1496
PRN07 E 37/1705 35/1845 41/1821 44/1787 41/1734 43/2059 46/1844
PRN08 36/1651 35/1677 39/1871 40/1717 39/1834 43/1811 41/1662
PRN09 38/1713 39/1836 41/1849 41/1737 42/1639 42/1867 45/1708
PRN10 E 44/1382 42/1407 43/1585 47/1423 45/1589 45/1633 44/1562
PRN11 42/1686 41/1964 41/1982 46/1912 40/1969 42/1931 40/1827
PRN13 39/1386 41/1431 45/1629 43/1504 43/1393 47/1571 43/1569
PRN15 39/1539 42/1556 39/1537 45/1478 43/1670 0/ 0 44/1609
PRN17 40/1403 40/1552 43/1659 47/1436 44/1636 43/1500 44/1613
PRN19 47/1447 39/1570 44/1727 46/1586 42/1640 47/1541 44/1552
PRN20 E 42/1585 41/1799 47/1933 48/1803 41/1690 43/1942 41/1807
PRN21 E 46/1357 46/1460 44/1672 47/1445 45/1561 42/1487 41/1549
PRN22 47/ 989 43/1161 45/1695 45/1488 46/1529 45/1519 42/1447
PRN23 E 42/1411 39/1418 42/1679 47/1443 45/1576 41/1511 43/1621
PRN24 38/1582 36/1788 41/1906 42/1787 45/1817 42/1954 41/1852
PRN25 39/1470 41/1655 41/1718 41/1634 42/1723 43/1715 45/1767
PRN26 41/1548 38/1628 41/1780 43/1751 44/1803 44/1761 43/1630
PRN27 39/1450 38/1508 39/1674 41/1584 43/1621 44/1710 46/1611
PRN28 45/1509 44/1714 50/1674 46/1600 50/1590 46/1697 49/1658
PRN29 40/1516 0/ 0 45/1870 41/1726 45/1744 44/1704 43/1855
PRN30 42/1647 42/1755 43/1902 44/1679 38/1764 41/1726 42/1614
PRN31 E 36/1454 39/1648 41/1721 44/1740 42/1710 43/1585 40/1465
Station Clock Offsets Solution for 0h UT
(microsecond / sigma in ns)
00dec03 00dec04 00dec05 00dec06 00dec07 00dec08 00dec09 sig
------------------------------------------------------------------------
ALGO REF REF REF REF REF REF REF --
AREQ 45.7564 72.6132 --- 4.3450 31.2760 58.2191 85.4074 .3
ARTU -2.1625* -2.1823* -2.1749* -2.1759* -2.1879* -2.1961* -2.2158* .3
AUCK -2.1331 -2.1377 -2.1221 -2.1269 -2.1439 -2.1793 -2.1658 .3
BAHR 760.5862 --- 760.5737 --- 760.5517 --- --- .3
BRMU -2.1370 -2.1431 -2.1386 -2.1842 -2.1537 -2.1856 -2.1824 .3
CAS1 -2.1316 -2.1139 -2.1336 -2.1596 -2.1656 -2.1496 -2.1702 .4
CHUR -5.1841 -5.1844 -5.1967 -5.2013 -5.2016 -5.2088 -5.1915 .5
COCO -2.1347 -2.1200 -2.1515 --- --- --- --- .5
DRAO !!ms!! !!ms!! !!ms!! !!ms!! !!ms!! !!ms!! -2.1696 .3
EISL -1.9586 -2.1086 -2.2367 -2.1538 --- --- --- .4
FAIR -.9067 -.9198 -.9362 -.9520 --- --- -.9951 .7
GUAM --- --- --- --- -2.2919 --- --- .3
IISC --- --- --- --- -2.1958 --- -2.1872 .4
IRKT -2.6056 -2.6254 53.6565 319.7038 319.6762 319.6533 319.6352 .4
KERG --- --- --- 776.7973* 674.2446* 527.7286* 668.2417* .3
KOUR --- 419.7655 419.8194 --- 420.0030* 420.0510 420.0898 1.1
LHAS -2.1298 --- --- --- --- --- --- .3
MAC1 -2.2220* -2.2316 -2.2404 -2.2357 -2.2304 -2.2703 -2.2725 .4
MATE --- --- --- --- --- 364.2630* 363.9480* .3
MAW1 -2.0850 -2.1123 -2.1882 --- --- --- --- .4
MCM4 53.6814 70.0230 86.5540 -2.7705 13.4178 29.3645 45.5213 .8
MKEA -2.3129 -2.3212 -2.3194 -2.3332 -2.3473 -2.3187 -2.3549 .4
NKLG 205.8074* 671.2607* 143.9848 602.9532* 76.0529 541.9370 3.0399* .5
NLIB --- --- --- --- --- -2.9747 -2.9791 .3
NRC1 -2.1355 -2.1459 -2.1596 -2.1761 -2.1891 -2.2018 --- .3
NRC2 --- -2.1576 -2.1712 -2.1883 -2.2013 -2.2140 --- .3
NYAL -2.2344 -2.2735 -2.3143 -2.3554 -2.3970 -2.4426 -2.4865 .3
ONSA -2.1460 -2.1544 -2.1626 330.4444 330.3638 330.2836 330.2033 .3
PERT --- --- --- --- -3.0880 -3.3080 -3.5317 .5
PIE1 -1.9987 -2.0153 -2.0329 -2.0512 -2.0686 -2.0869 -2.1039 .3
RBAY --- -2.2408 --- --- --- --- --- .4
RIOG --- --- --- --- --- -2.2863 -2.2960 .5
SANT -2.0967* -2.1577 -2.1204 -2.1712* -2.0859 --- -2.1907 .6
STJO -1.9773 -1.9979 -2.0035 -2.0258 -2.0464 -2.0729 -2.0984 .3
THTI --- --- 19.8145* 28.3384* 109.2314* 118.8291* 128.8159* .3
THU1 -2.1252 -2.1453 -2.1572* -2.1305 -2.1577 -2.1708 -2.1876 .4
TIDB 866.8271 866.8331 866.8384 866.8453 866.8529 --- --- .3
TIXI -2.1946* -2.2003* -2.2106* -2.2075* -2.2215* -2.2204* -2.2322* .3
TSKB -.7993 -.8052 -.8164 -.8308 -.8317 -.8404 -.8409 .3
USNO -2.3107 -2.3211 -2.0390 -2.0509 --- -2.0731 -2.0839 .3
VILL --- -4.3879 -4.4718 -4.5520 -4.6102 -4.6733 -4.7386 .4
YAR1 -2.4500* -6.3784* -5.9293* -1.7319* --- --- --- .4
YELL -1.5931 -1.6012 -1.6146 -1.6296 -1.6398 -1.6487 -1.6594 .4
ZWEN --- --- --- --- --- -2.1610 -2.1778 .3
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 AUCK BAHR BRMU CAS1 CHUR COCO DRAO EISL FAIR FORT GUAM
global: HOB2 IISC IRKT KERG KOUR KWJ1 LHAS MAC1 MALI MATE MAW1 MCM4 MKEA NKLG
global: NLIB NRC1 NRC2 NYAL ONSA PERT PIE1 RBAY RIOG SANT SEY1 STJO SUTH THTI
global: THU1 TIDB TIXI TSKB USNO VILL YAR1 YELL ZWEN
--
Geodetic Survey of Canada
Ottawa, Ontario, Canada
Internet: pierre at geod.nrcan.gc.ca
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