Subject: [IGSREPORT-0956] GFZ Analysis Report (week 747)
From: Gerd Gendt and Galina Dick
Date: Fri, 13 May 1994 2:03:52 PDT

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IGS Electronic Report    Fri May 13  2:03:52 PDT 1994      Message Number 0956
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Author: Gerd Gendt and Galina Dick
Subject: GFZ Analysis Report (week 747)

Subject: GFZ Analysis Report (747)

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GFZ ANALYSIS REPORT   GPS-WEEK 0747 (DAYS 121-127, DATES 01-05-94 TO 07-05-94)
******************************************************************************

Submitted by: G. Gendt, Ch. Reigber, G. Dick, Th. Nischan, W. Mai 
              GeoForschungsZentrum Potsdam (GFZ)
             
              Telegrafenberg A17, D-14473 Potsdam, Germany
              e-mail:[email-masked]
              fax: (0331) 288 1111
              tel: (0331) 288 1114 

PRODUCT SUMMARY

FILES SENT TO IGN: 
______________________________________________________________________________
gfz07477.sum           this text file
gfz07477.erp           Earth rotation parameters 
gfz0747[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________

ERP RESULT

Attention: UT is given for midnight
           UT differences plus dLODR(ms) gives the adjusted LODR

  MJD        XP       YP  UT1R-IAT for 0h SIGX   SIGY  SIGLOD NS FIX NV  dLODR 
           arcsec   arcsec     sec      arcsec  arcsec   ms                ms
49473.500  0.18492  0.33335 -28.093300  0.00003 0.00003 0.004 30 20 25  -0.2328
49474.500  0.18515  0.33147 -28.096000  0.00003 0.00003 0.004 30 20 25  -0.1214
49475.500  0.18571  0.32956 -28.098600  0.00004 0.00003 0.004 30 20 25  -0.0661
49476.500  0.18632  0.32751 -28.101200  0.00003 0.00003 0.004 30 20 25  -0.0704
49477.500  0.18616  0.32517 -28.103800  0.00004 0.00004 0.005 29 20 25  -0.1253
49478.500  0.18587  0.32341 -28.106400  0.00004 0.00004 0.005 30 20 25  -0.0673
49479.500  0.18670  0.32049 -28.109000  0.00003 0.00003 0.004 30 20 25  -0.1365
-------------------------------------------------------------------------------

  MJD          LODR    +/-
             (ms/day)

-----------------------------
49473.5000    2.4672  0.004
49474.5000    2.4786  0.004
49475.5000    2.5339  0.004
49476.5000    2.5296  0.004
49477.5000    2.4747  0.005
49478.5000    2.5327  0.005
49479.5000    2.4635  0.004

ORBITS REPEATABILITY (cm):
(mean component error rms =sqrt((xrms**2 + yrms**2 + zrms**2)/3) )

            DAY 1  (32 h)              DAY 2  (32 h)
   |------------------------|--------|                            
 
                            |------------------------|--------|

   Six-hour overlap:        |xxxxxx|

   (only rms < 120 are used for MEAN)

Note: E - indicates that the satellite is in eclipse

---------------------------------------------------
                 RMS for DAY
PRN  121    122    123    124    125    126    127
-------------------------------------------------------
 1    32     33     52     33     52     45     25  
 2    23     30     31     34     54     29     22  
 4    16     14     15     16     20     18     16  
 5    22     25     22     18     29     19     16  
 6    38 E   58 E   35 E   35 E   88 E   43 E   21 E
 7    52 E   39 E   44 E   61 E   71 E   73 E   80 E
 9    21     48     30     20     78     33     26  
12     9     17     14      8     17     13     13  
14    36     33     26     22     17     22     19  
15    13     21     24     29     23     34     20  
16    14     23     13     34     11     24      8  
17    38     25     26     30     41     22     22  
18    49     39     37     36     37      -      -  
19    37     26     27     25     36     30     30  
20    19     19     18     17     29     16     17  
21    23     23     21     21     24     28     19  
22    52     25     62     35     35     36     30  
23    11     17      7     11      7     15     13  
24    21     17     18     15     19     16     17  
25    58     50     55     33     41     30     30  
26    17     31     20     45     57     25     11  
27    26     36     26     23     32     33     27  
28   107 E   52 E   82 E   25 E   67 E   57 E   62 E
29    26     21     30     36     24     24     26  
31    52 E   58 E   39 E   56 E   47 E   38 E   62 E
 
MEAN  38     34     35     31     44     33     31
---------------------------------------------------

REMARKS: (1) AS all days
         (2) PRN18  manoeuvre on day 126
                
CLOCK ESTIMATION:  ALGO was used as time reference.

STATIONS USED BY GFZ INCLUDING STATISTICS

Sampling rate: 6 minutes         
                                                          
 IGS  INTERNAL         OBSERVATIONS for DAY
 CODE  STA#               121  122  123  124  125  126  127
----------------------------------------------------
onsa  105001   I'92      1598 1505 1271  531 1540 1570 1608
kosg  110001 F I'92      1653 1656 1655 1649 1659 1610 1509
madr  120001 F I'92      1641 1562 1598 1679 1670 1603 1529
mate  130001 F           1669 1659 1655 1510 1403 1354 1379
trom  150001 F I'92      1510 1546 1568 1591 1612 1528 1552
wetb  160001 F I'92      1553 1618 1471 1341 1628 1554 1364
mets  180001   I'92      1535 1158  452 1538 1526 1531 1467
usud  200002             1379 1520 1648 1586 1582 1656 1658
taiw  220001 F I'92      1649 1660 1689 1653 1708 1684 1616
tidb  305001 F           1635 1340  495 1521 1574 1618 1426
yar1  310001 F I'92      1670 1706 1674 1612 1581 1605 1488
hob1  320001             1606 1559 1546 1407 1501 1559 1588
algo  400002 F I'92      1616 1615 1613 1609 1634 1570 1627
stjo  405002 F           1592 1593 1596 1588 1563 1295 1230
wes2  408001             1658 1679 1690 1646 1623 1557 1610
gold  410001 F I'92      1605 1660 1676 1577 1600 1589 1562
jplm  415001 F            196  124  925 1735 1744 1666 1680
fair  420001 F I'92      1644 1648 1690 1510 1172 1617 1692
yell  470002 F I'92      1536 1461 1592 1519 1454 1419 1627
drao  475002 F           1701 1714 1707 1701 1710 1668 1280
rcm5  482001   I'92      1624 1658 1711 1668 1676 1636 1691
sant  500001 F I'92      1632 1594 1629 1425 1509 1536 1610
kour  510001 F           1530 1523 1536 1528 1505 1430 1482
fort  520001             1585 1593 1576 1570 1190  385 1577
areq  530002             1688 1685 1706 1286  430 1432 1713
hart  600001 F I'92      1398 1381 1365 1365  746  769  727
masp  610001 F I'92      1711 1706 1686 1713 1727 1672 1688
kokb  700001 F I'92      1785 1787 1780 1747 1603 1717 1255
pama  710001             1364 1348 1324 1260 1404 1459 1266
mcmu  800002             1712 1272  463 1302    0  443 1695
-----------------------------------------------------------

Note: F    - indicates a constrained fiducial site ( to 1-2 mm )
      I'92 - indicates that initial station coordinates are from ITRF'92

SATELLITES STATISTICS

                OBSERVATIONS for DAY
PRN     121  122  123  124  125  126  127
------------------------------------------
  1    1755 1640 1709 1782 1679 1730 1734
  2    1658 1715 1651 1676 1652 1640 1675
  4    2079 2011 1831 1890 1689 1783 1861
  5    1899 1854 1771 1743 1637 1748 1802
  6    1997 2042 1946 1995 2009 1984 1987
  7    1827 1750 1628 1665 1594 1703 1719
  9    1787 1813 1725 1705 1613 1697 1813
 12    1782 1711 1612 1620 1494 1671 1771
 14    1819 1690 1621 1730 1514 1691 1705
 15    1506 1387 1390 1531 1391 1504 1515
 16    2156 2121 1942 2128 2159 2153 2125
 17    1796 1815 1786 1788 1781 1885 1940
 18    1965 1949 1895 2059 1842  854 1561
 19    1896 1848 1747 1871 1799 1786 1948
 20    1789 1735 1730 1747 1673 1738 1734
 21    1746 1685 1677 1634 1596 1650 1692
 22    1730 1736 1714 1754 1692 1631 1709
 23    1963 1808 1839 1763 1775 1850 1893
 24    2176 2183 2047 2099 1940 2071 2002
 25    1784 1712 1695 1695 1646 1628 1627
 26    2116 2108 1970 2054 2087 2199 2089
 27    1986 1834 1776 1967 1895 1929 1962
 28    1806 1778 1766 1758 1676 1688 1746
 29    1919 1820 1765 1889 1724 1751 1836
 31    1738 1785 1754 1824 1717 1768 1750
-----------------------------------------

SOLUTION CHARACTERISTICS

1. Software used :   EPOS.P.V2
2. Definition of Terrestrial Reference Frame
     Fiducial-free adjustment of all station coordinates.
     These  coordinates are then fixed in the determination of ERPs and ORBITS
 
3. Data used:
   - undifferenced carrier phases
   - 32 h arc solutions   

5. Adjusted parameters:
   - state vector of all satellites
   - coordinate corrections 
   - daily ERPs
   - tropospheric zenith path delay (4 h)
   - y-bias, solar radiation scaling factor
   - ambiguities
   - STA and SV clock parameters of each observation epoch