From ESOC Fri Apr 29 06:52:05 1994 From: ESOC (ESOC) Date: Fri, 29 Apr 1994 6:52:05 PDT Subject: [IGSREPORT-0929] ESA07457.SUM Message-ID: ****************************************************************************** IGS Electronic Report Fri Apr 29 6:52:05 PDT 1994 Message Number 0929 ****************************************************************************** Author: ESOC IGS-team Subject: ESA07457.SUM Subject: ESA07457.SUM ------------------------- ANALYSIS CENTRE: ESA/ESOC ------------------------- OUTLINE OF THE ESTIMATION OF GPS-ORBITS AND EARTH ROTATION PARAMETERS AT THE ESOC PROCESSING CENTRE FOR IGS J.M.Dow, T.Martin-Mur, J.Feltens, C.Garcia-Martinez, M.A. Bayona-Perez Description of analysis for period 1994 Apr 17 - Apr 23 (week 0745) 1. SOFTWARE USED: GPSOBS/BAHN-Version 5 2. MODELS USED AND PARAMETERS ESTIMATED/FIXED: For a description of models and parameters used ==> see IGS - Mail 51 For updates of the models and parameters used ==> see IGS - Mail 114 and see IGS - Rep. 224,277 3. REMARKS: -Lack of observations for satellite PRN13 on DOY 113. -Manoeuvre of satellite PRN09 on 20/04/94. The satellite was only tracked by HART when the manoeuvre took place (between 1300 and 1430 UTC) and the time could not be estimated with the usual accuracy. The estimated components are the following: Radial : 38 mm/s Transverse : 154 mm/s Normal : -10 mm/s Due to the fact that the satellite was sparsely tracked during and after the manoeuvre, the estimation is not as accurate as usual. -Satellite clock bias estimates for the last weeks have been severely affected by C/A pseudo range biases. We are using the biases published by J.Kouba in the recent IGS workshop, but it seems that these biases are not constant for all the receivers. For the last weeks we have had problems with the following receivers: rcv: KOKB doy: 096 different biases for different satellites rcv: TIDB doy: 098 unusually high noise rcv: HART doy: 098 different biases for different satellites We are actually reprocessing the last three weeks excluding troublesome receivers and we will redeliver them as soon as they are completed. For this week we have excluded the three previously listed receivers and we think that the clocks can be, when compared with EMR clocks, in the order of 10 ns rms. 4. GROUND STATIONS: Altamimi and Boucher, IGS Mails 421 and 430, ITRF92 at 1994.0 and localtie.tab. _______________________________________________________________________ GPSweek|ALGO GOLD KIRU KOUR MCMU RCM5 TIDB USUD YELL |f |e |t 0745___| AREQ HART KOKB MADR PAMA SANT TROM WETT |i |s |o |DAY| FAIR HOB1 KOSG MASP PERT TAIW TSKB YAR1 |x.|t.|t. ---|---|------------------------------------------------------|--|--|-- |107| FeF FFe eFF eFe eee eFe FFe eFF F |13|12|25 |108| FeF FFe eFF eFe eee eFe FFe eFF F |13|12|25 |109| FeF FFe eFF eFe eee eFe FFe eFF F |13|12|25 |110| F-F FFe eFF eFe eee eFe FFe eFF F |13|11|24 |111| F-F FFe eFF eFe eee eFe FFe eFF F |13|11|24 |112| F-F FFe eFF eFe eee eFe FFe eFF F |13|11|24 |113| FeF FFe eFF eFe eee eFe FFe eFF F |13|12|25 with: "F" ... coordinates of ground station kept fixed, "e" ... coordinates of ground station estimated, "-" ... ground station not included on that day. 5. ORBIT FIT MINUS EXTRAPOLATION FROM PREVIOUS DAY, RMS IN \DAY| 107 108 109 110 111 112 113 \ | \ | SAT\| ----|------------------------------------------- 02 | 76 40 65 42 100 167 57 12 | 28 45 37 50 84 29 20 13 | 75 47 32 55 53 24 -- 14 | 42 44 55 26 46 62 67 15 | 40 27 47 43 60 48 47 16 | 41 42 96 101 55 88 50 17 | 86 31 34 87 51 56 44 18 | 76 50 53 81 89 49 59 19 | 67 47 65 53 59 61 50 20 | 56 29 71 50 35 36 32 21 | 75 62 55 45 51 35 39 22 | 31 58 127 55 29 43 72 23 | 102 21 15 31 22 44 26 24 | 56 38 48 49 79 51 38 25 | 48 51 25 65 39 39 70 26 | 137 105 115 128 93 136 92 27 | 64 51 36 49 29 45 42 28 | 64 94 62 114 68 83 55 01 | 79 35 67 80 64 70 55 29 | 64 105 159 120 45 42 47 31 | 107 109 73 105 70 129 92 07 | 120 98 86 134 52 88 94 09 | 45 59 58 -- 3499 60 49 05 | 49 30 42 35 48 83 29 04 | 65 68 73 47 78 41 96 06 | -- -- -- 70 212 192 425 6. GROUND STATIONS STATISTICS, RESIDUALS RMS OF DOUBLE DIFFERENCE PHASES IN , nmeas = NUMBER OF MEASUREMENTS \DAY| 107 108 109 110 111 112 113 \ | \ | STAT\| nmeas/RMS nmeas/RMS nmeas/RMS nmeas/RMS nmeas/RMS nmeas/RMS nmeas/RMS -----|----------------------------------------------------------------------- ALGO | 2367/ 11 2640/ 11 2814/ 11 3236/ 12 3432/ 12 3344/ 11 2988/ 12 AREQ | 1596/ 11 1223/ 10 469/ 10 0/ 0 0/ 0 0/ 0 1381/ 11 FAIR | 641/ 12 805/ 10 1123/ 11 1375/ 13 1536/ 12 1663/ 11 1438/ 12 GOLD | 1269/ 12 1311/ 11 1289/ 11 1359/ 12 1435/ 12 1423/ 11 1456/ 12 HART | 555/ 18 499/ 14 549/ 12 557/ 19 615/ 19 685/ 11 596/ 12 HOB1 | 2368/ 13 2593/ 11 2590/ 11 2161/ 13 1718/ 15 1453/ 11 1346/ 13 KIRU | 718/ 16 810/ 13 888/ 12 1001/ 13 1125/ 14 1112/ 14 1112/ 14 KOKB | 1729/ 14 1888/ 13 1982/ 12 2042/ 14 2153/ 14 2131/ 12 2001/ 13 KOSG | 1409/ 9 1372/ 9 1377/ 9 1481/ 9 1570/ 10 1694/ 9 1660/ 10 KOUR | 1165/ 16 1123/ 13 1102/ 13 1334/ 16 1386/ 17 1303/ 14 1267/ 15 MADR | 2842/ 12 3349/ 10 3257/ 9 2764/ 10 3205/ 11 4266/ 11 3492/ 11 MASP | 2054/ 13 1827/ 11 1911/ 10 2147/ 11 2037/ 13 1801/ 11 1896/ 11 MCMU | 1032/ 11 1058/ 10 1311/ 11 1234/ 13 1136/ 16 1122/ 11 1115/ 11 PAMA | 114/ 19 135/ 17 102/ 15 91/ 23 91/ 25 86/ 17 85/ 17 PERT | 1354/ 12 995/ 10 1112/ 11 619/ 15 689/ 13 1330/ 10 1429/ 12 RCM5 | 1057/ 11 1111/ 11 1114/ 11 1158/ 13 1264/ 12 1170/ 12 1053/ 12 SANT | 1472/ 10 1557/ 11 1067/ 12 790/ 16 810/ 20 834/ 14 1529/ 12 TAIW | 1724/ 24 1863/ 12 1942/ 12 2152/ 12 2150/ 13 2197/ 12 1931/ 12 TIDB | 1673/ 12 2421/ 11 2098/ 10 975/ 10 105/ 7 0/ 0 0/ 0 TROM | 746/ 13 772/ 10 878/ 10 1019/ 10 1142/ 10 1118/ 10 1083/ 10 TSKB | 1919/ 10 1923/ 9 1978/ 8 2008/ 8 2002/ 9 2112/ 9 2060/ 9 USUD | 3667/ 18 3764/ 10 3797/ 10 3861/ 11 3932/ 11 4253/ 10 4152/ 10 WETT | 1319/ 11 1174/ 9 1171/ 9 1258/ 9 1274/ 10 1376/ 10 1155/ 10 YAR1 | 1774/ 12 1701/ 11 1513/ 12 1317/ 15 1675/ 15 1944/ 11 1846/ 12 YELL | 1128/ 11 1126/ 11 1104/ 10 1331/ 11 1478/ 10 1729/ 9 1509/ 10 7. SATELLITES STATISTICS, RESIDUALS RMS OF DOUBLE DIFFERENCE PHASES IN , nmeas = NUMBER OF MEASUREMENTS \DAY| 107 108 109 110 111 112 113 \ | \ | SAT\| nmeas/RMS nmeas/RMS nmeas/RMS nmeas/RMS nmeas/RMS nmeas/RMS nmeas/RMS -----|----------------------------------------------------------------------- PRN02| 1539/ 13 1639/ 11 1625/ 11 1590/ 12 1513/ 13 1648/ 11 1583/ 11 PRN12| 1745/ 9 1680/ 9 1552/ 9 1616/ 14 1652/ 14 1731/ 10 1817/ 10 PRN13| 1628/ 11 1677/ 11 1343/ 10 1093/ 11 1050/ 11 702/ 10 71/ 10 PRN14| 1301/ 11 1536/ 11 1424/ 10 1375/ 11 1436/ 11 1573/ 10 1576/ 11 PRN15| 1505/ 11 1791/ 11 1676/ 10 1635/ 11 1757/ 11 1691/ 10 1624/ 12 PRN16| 1304/ 11 1319/ 10 1337/ 11 1463/ 12 1597/ 11 1604/ 11 1554/ 11 PRN17| 1458/ 14 1584/ 10 1629/ 10 1526/ 11 1452/ 11 1604/ 11 1705/ 11 PRN18| 1864/ 14 1799/ 12 1537/ 10 1431/ 11 1666/ 12 1930/ 11 1821/ 11 PRN19| 1894/ 11 1940/ 11 1714/ 10 1608/ 11 1632/ 11 1712/ 11 1743/ 11 PRN20| 1600/ 10 1474/ 10 1530/ 10 1547/ 11 1486/ 11 1582/ 11 1716/ 12 PRN21| 1340/ 10 1575/ 10 1501/ 10 1452/ 11 1487/ 11 1463/ 10 1347/ 11 PRN22| 1555/ 12 1720/ 11 1613/ 11 1579/ 11 1610/ 12 1693/ 11 1672/ 11 PRN23| 1383/ 10 1526/ 10 1443/ 10 1398/ 11 1350/ 10 1389/ 10 1315/ 10 PRN24| 1436/ 25 1469/ 10 1423/ 10 1331/ 12 1339/ 12 1593/ 11 1526/ 11 PRN25| 1284/ 11 1276/ 11 1316/ 11 1344/ 11 1342/ 12 1451/ 11 1403/ 12 PRN26| 1291/ 13 1319/ 11 1352/ 11 1382/ 11 1353/ 13 1414/ 11 1419/ 12 PRN27| 1533/ 11 1559/ 11 1511/ 10 1461/ 10 1460/ 11 1419/ 10 1314/ 10 PRN28| 1593/ 12 1726/ 12 1632/ 12 1611/ 13 1580/ 15 1677/ 12 1675/ 13 PRN01| 1284/ 12 1387/ 11 1338/ 12 1379/ 12 1434/ 12 1429/ 11 1402/ 12 PRN29| 1300/ 16 1434/ 13 1241/ 11 1223/ 13 1298/ 14 1388/ 12 1455/ 12 PRN31| 1252/ 15 1299/ 12 1224/ 13 1241/ 14 1279/ 16 1278/ 12 1348/ 13 PRN07| 1681/ 15 1716/ 12 1624/ 13 1661/ 14 1634/ 15 1689/ 11 1624/ 13 PRN09| 1747/ 11 1796/ 10 1604/ 10 936/ 19 1177/ 20 1902/ 10 2018/ 10 PRN05| 1600/ 10 1540/ 9 1509/ 11 1525/ 12 1608/ 12 1683/ 11 1761/ 11 PRN04| 1325/ 12 1259/ 10 1264/ 10 1320/ 11 1267/ 11 1346/ 10 1333/ 11 PRN06| 250/ 60 0/ 0 1576/ 11 1543/ 14 1501/ 15 1555/ 14 1758/ 14 8. PRODUCTS GENERATED: The following products are generated and stored in CDDIS at NASA/GSFC: ESA0745*.EPH - Precise GPS orbits and clocks, * = day of the week (0-6) ESA07457.ERP - Earth rotation results for week 0745 (including DUT1R) ESA07457.SUM - This summary file End of Message