Subject: [IGSREPORT-0888] GFZ Analysis Report (week 742)
From: Gerd Gendt and Galina Dick
Date: Fri, 8 Apr 1994 2:58:07 PDT

******************************************************************************
IGS Electronic Report    Fri Apr  8  2:58:07 PDT 1994      Message Number 0888
******************************************************************************

Author: Gerd Gendt and Galina Dick
Subject: GFZ Analysis Report (week 742)

Subject: GFZ Analysis Report (742)

******************************************************************************
GFZ ANALYSIS REPORT   GPS-WEEK 0742 (DAYS 086-092, DATES 27-03-94 TO 02-04-94)
******************************************************************************

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: 
______________________________________________________________________________
gfz07427.sum           this text file
gfz07427.erp           Earth rotation parameters 
gfz0742[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
49438.500  0.16971  0.40061 -28.000160  0.00004 0.00004 0.005 29 20 27   0.0347
49439.500  0.17082  0.39874 -28.002700  0.00004 0.00004 0.005 30 20 27   0.0914
49440.500  0.17122  0.39705 -28.005100  0.00004 0.00004 0.004 30 20 27   0.0859
49441.500  0.17191  0.39463 -28.007500  0.00003 0.00003 0.004 29 20 27   0.0571
49442.500  0.17380  0.39265 -28.009900  0.00003 0.00003 0.004 29 20 26   0.1086
49443.500  0.17478  0.39124 -28.012300  0.00003 0.00003 0.004 29 20 27   0.0237
49444.500  0.17709  0.39040 -28.014700  0.00003 0.00004 0.004 29 20 27   0.0737
-------------------------------------------------------------------------------

  MJD          LODR    +/-
             (ms/day)

-----------------------------
49438.5000    2.5747  0.005
49439.5000    2.4914  0.005
49440.5000    2.4859  0.004
49441.5000    2.4571  0.004
49442.5000    2.5086  0.004
49443.5000    2.4237  0.004
49444.5000    2.4737  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  086    087    088    089    090    091    092
-------------------------------------------------------
 1    87 E  101 E   51 E   45 E   75 E   53 E   49 E
 2    19     38     34     51     32     37     27  
 3     -     27     22     21     24     37     31  
 4    10      -     36     12     13     16     12  
 5    20     24     31     24     28     19     23  
 6     -     44     42     30     47     86 E   92 E
 7    30     57     57 E   26 E    - E    - E    - E
 9    17     38     16     14     26     17     16  
12    17     17     31     24     35     14     41  
13     -      -     18     10     10     14     16  
14    26     21     28     22     30     22     32  
15    18     34     22     19     52     31     24  
16    20     21     22     22     17     26     22  
17    23     41     41     35     37     34     40  
18    22 E   35 E   47 E   29 E   32 E   30 E   34 E
19    19     22     21     24     21     26     12  
20    20     17     19     16     24     15     19  
21    35     37     24     38     44     55     31  
22    27     17     20     14     18     26     15  
23    78     22     46     31     61     24     69  
24    16     19     14     12     15     18     18  
25    20     28     34     28     80     49     70  
26    77 E   53 E   35 E   32 E   35 E   50 E   31 E
27    26     18     15     21     20     19     12  
28    35     35     26     33 E   36 E   74 E   44 E
29    28 E  136 E   62 E   23 E   28 E   32 E   36 E
31    55     42     37 E   27 E   31 E   46 E   34 E
 
MEAN  37     38     34     27     38     38     38
---------------------------------------------------

REMARKS: (1) AS all days
         (2) PRN7  not used on days 89, 90 91 ( few data)
         (3) PRN13 not used on day  86        ( few data)
         (4) new occupation for AREQ starting from day 89
                
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#              86   87   88   89   90   91   92
------------------------------------------------------------
onsa  105001   I'92      1616 1623 1667 1698 1660 1639 1687
kosg  110001 F I'92      1716 1698 1777 1744 1703 1707 1708
madr  120001 F I'92      1625 1660 1668 1701 1636 1565 1694
mate  130001 F           1496 1472 1502 1516 1676 1657 1640
trom  150001 F I'92      1637 1711 1765 1745 1708 1727 1670
mets  180001   I'92      1648 1671 1709 1720 1666 1672 1686
usud  200002             1744 1692 1734 1006 1159 1700 1763
taiw  220001 F I'92      1770 1692 1794 1667 1696 1716 1739
tidb  305001 F           1453 1584 1544 1667 1721 1717 1562
yar1  310001 F I'92      1257 1569 1744 1385 1657 1660 1537
hob1  320001             1568 1576 1496 1573 1680 1694 1634
algo  400002 F I'92      1550 1715 1773 1738 1722 1764 1790
stjo  405002 F           1251 1363 1517 1527 1507 1538 1576
wes2  408001             1686 1682 1684 1722 1737 1718 1766
gold  410001 F I'92      1758 1742 1762 1803 1768 1744 1771
jplm  415001 F           1523 1730 1826 1814 1811 1822 1780
fair  420001 F I'92      1711 1381 1537 1767 1784 1678 1602
yell  470002 F I'92      1520 1568 1458 1424 1288 1506 1503
drao  475002 F           1754 1735 1764 1736 1732 1773 1802
rcm5  482001   I'92      1640 1620 1748 1697 1675 1709 1749
sant  500001 F I'92       718  348 1184 1776 1756 1773 1807
kour  510001 F           1532 1473 1596 1611 1596 1590 1594
fort  520001             1629 1531 1586 1631 1629 1602 1599
areq  530001             1530 1073    0    0    0    0    0
areq  530002                0    0  380 1661 1698 1703 1684
hart  600001 F I'92      1175 1185 1295 1281 1325 1325 1281
masp  610001 F I'92      1723 1680 1751 1795 1768 1787 1794
kokb  700001 F I'92      1799 1831 1877 1843 1833 1831 1802
pama  710001              921 1131 1508 1532 1499 1480 1505
wetb  160001 F I'92        25 1326 1818 1729 1712 1722 1689
mcmu  800002                0  211  211    0    0    0    0
-----------------------------------------------------------

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      86   87   88   89   90   91   92
------------------------------------------
  1    1454 1482 1537 1632 1647 1671 1455
  2    1539 1500 1516 1708 1684 1726 1708
  3    1654 1778 1886 1865 1952 1987 1954
  4    1312  690 1702 2020 2071 2058 2042
  5    1672 1581 1679 1727 1836 1799 1805
  6    1465 1541 1471 1646 1728 1690 1684
  7    1819 1823 1881  714    0  311 1569
  9    1386 1553 1650 1620 1726 1712 1742
 12    1586 1588 1634 1601 1751 1723 1753
 13     898 1456 1762 2048 2198 2198 2080
 14    1563 1742 1733 1829 1814 1841 1700
 15    1518 1605 1607 1653 1602 1662 1554
 16    1948 1942 2107 2069 2105 1912 1807
 17    1513 1642 1796 1775 1763 1875 1868
 18    1925 1994 1959 2143 2125 2120 2010
 19    1718 1722 1814 1904 1884 1911 1866
 20    1671 1572 1495 1407 1658 1864 1738
 21    1544 1548 1541 1631 1622 1663 1591
 22    1447 1682 1689 1725 1651 1696 1719
 23    1298 1477 1650 1630 1688 1693 1650
 24    1967 1990 2169 2285 2324 2320 2271
 25    1621 1687 1774 1896 1841 1878 1842
 26    1723 1736 1852 1792 1879 1895 1833
 27    1763 1817 1819 1937 1933 1948 1907
 28    1515 1526 1453 1569 1647 1683 1648
 29    1829 1959 1926 2020 2032 1996 1947
 31    1627 1640 1573 1663 1641 1687 1671
-----------------------------------------

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