[IGSREPORT-641] GFZ Analysis Report (724)


Tue Dec 7 00:00:00 PST 1993


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IGS Electronic Report      7-DEC-1993 14:28:38       Message Number 641
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Author : Galina Dick
Subject: GFZ Analysis Report (724)
----------------------------------


******************************************************************************
GFZ ANALYSIS REPORT   GPS-WEEK 0724 (DAYS 325-331, DATES 21-11-93 TO 27-11-93)
******************************************************************************

Submitted by: G. Gendt, Ch. Reigber, G. Dick, Th. Nischan, W. Mai 
              GeoForschungsZentrum Potsdam (GFZ)
             
              Telegrafenberg A17, D-14473 Potsdam, Germany
              e-mail:gend at gfz-potsdam.de
              fax: (0331) 288 1111
              tel: (0331) 288 1114 


PRODUCT SUMMARY

FILES SENT TO IGN: 
______________________________________________________________________________
gfz07247.sum           this text file
gfz07247.erp           Earth rotation parameters 
gfz0724[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   UT1-IAT for 0h SIGX   SIGY  SIGLOD NS FIX NV  dLODR 
           arcsec   arcsec     sec      arcsec  arcsec   ms                ms
49312.500 -0.04408  0.44526 -27.705080  0.00004 0.00003 0.004 26 14 26   0.0036
49313.500 -0.04320  0.44612 -27.707440  0.00003 0.00003 0.004 27 15 26   0.0620
49314.500 -0.04183  0.44666 -27.709800  0.00003 0.00003 0.004 27 15 26   0.0177
49315.500 -0.04076  0.44794 -27.712200  0.00004 0.00003 0.004 27 15 26  -0.0004
49316.500 -0.04008  0.44870 -27.714600  0.00003 0.00003 0.004 27 15 26   0.0001
49317.500 -0.03927  0.44954 -27.717000  0.00003 0.00003 0.004 27 15 26  -0.0457
49318.500 -0.03849  0.45009 -27.719400  0.00003 0.00003 0.004 27 15 26   0.0203
-------------------------------------------------------------------------------


  MJD          LODR    +/-
             (ms/day)

49312.5000    2.3636  0.004
49313.5000    2.4220  0.004
49314.5000    2.4177  0.004
49315.5000    2.3996  0.004
49316.5000    2.4001  0.004
49317.5000    2.3543  0.004
49318.5000    2.4203  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)

---------------------------------------
                 RMS for DAY
PRN   325  326  327  328  329  330  331
---------------------------------------
 1     25   36   22   31   26   23   18
 2     30   31   28   42   36   35   34
 3    203   18   23   17   18   19   19
 4     60   50   46   57   36   43   43
 5     27   33   42   24   40   25   21
 7     50   41   44   41   45   41   41
 9     48   59   75   42   54   45   46
12     24   29   43   19   25   23   19
14      7   12   11   11   10   13   17
15     11   14   17   31   14   16   14
16     40   31   42   34   38   43   37
17     14   19   14   19   14   21   17
18     27   24   22   34   21   20   25
19     42   26   32   39   31   32   35
20     31   20   24   17   26   23   26
21     19   22   15   21   28   21   27
22     21   15   14   12   17   19   18
23     17   28    7   16   25   24   31
24     48   28   28   14   25   18   19
25     20   29   49   38   43   48   60
26     29   31   42   34   51   39   27
27     20   29   29   50   36   44   32
28     27   24   23   25   20   27   20
29     14   14   13   42   14   16   14
31     12   22   17   34   25   23   21
   
MEAN   29   29   33   32   31   30   29
---------------------------------------

REMARKS: (1) Again less than 50% of data for satellite PRN13 
             for all days during this week. Results are not 
             included for the whole week because of lack of
             observations.
         (2) New satellite PRN04 included with the beginning 
             of week 724
                

STATIONS USED BY GFZ INCLUDING STATISTICS

Sampling rate: 6 minutes
                                                          
 IGS  INTERNAL         OBSERVATIONS for DAY
 CODE  STA#        325  326  327  328  329  330  331
----------------------------------------------------
onsa  105001      1501 1198 1473 1459 1507 1505 1564
kosg  110001      1656 1649 1535 1561 1517 1521 1635
madr  120001      1680 1582 1572 1422 1585 1616 1660
mate  130001      1686 1693 1694 1705 1712 1713 1709
trom  150001         0 1274 1700 1707 1733 1733 1718
wetb  160001      1703 1171  387 1664 1673 1604 1659
mets  180001      1589 1607 1597 1604 1592 1632 1626
usud  200002      1658 1646 1675 1617 1590 1514 1565
taiw  220001      1651 1733 1736 1737 1689 1688 1712
tidb  305001       449 1736 1321 1556 1636 1724 1325
yar1  310001      1555 1659 1631 1632 1650 1669 1685
hob1  320001      1180 1204 1281 1070  522 1595 1686
algo  400001      1708 1713 1704 1695 1704 1700 1618
stjo  405001      1671 1676 1677 1692 1681 1610 1632
wes2  408001      1666 1628 1581 1485 1449 1425 1408
gold  410001      1613 1643 1630 1455 1567 1599 1579
jplm  415001      1711 1709 1708 1707 1718 1717 1722
fair  420001      1742 1766 1771 1771 1650 1600 1708
yell  470001      1725 1699 1695 1701 1701 1697 1719
drao  475001      1635 1608 1680 1711 1721 1723 1715
sant  500001      1602 1606  865  748 1579 1545 1576
kour  510001      1498 1561 1562 1561 1400 1568 1544
fort  520001      1620 1599 1548 1575 1627 1655 1199
hart  600001      1308 1316 1283 1290 1340 1340 1339
masp  610001      1701 1717 1714 1706 1730 1722 1725
kokb  700001      1751 1753 1729 1759 1769 1751 1750
pama  710001      1618 1645 1536 1492 1639 1635 1639
----------------------------------------------------



SATELLITES STATISTICS

                OBSERVATIONS for DAY
PRN     325  326  327  328  329  330  331
------------------------------------------
  1    1435 1442 1452 1566 1575 1606 1593
  2    1624 1752 1760 1720 1796 1791 1787
  3    1742 1722 1687 1707 1702 1799 1844
  4    1463 1490 1409 1452 1480 1588 1573
  5    1337 1423 1412 1391 1463 1527 1501
  7    1589 1736 1653 1630 1653 1686 1798
  9    1462 1462 1409 1375 1422 1485 1484
 12    1322 1409 1353 1321 1407 1478 1476
 13     455  514  536  449  517  474  495
 14    1468 1556 1451 1551 1472 1506 1424
 15    1545 1633 1555 1609 1669 1666 1691
 16    1513 1735 1698 1592 1642 1696 1679
 17    1607 1681 1654 1741 1611 1765 1678
 18    1838 1859 1735 1761 1700 1782 1847
 19    1777 1804 1699 1787 1856 1928 1888
 20    1500 1601 1465 1498 1602 1568 1574
 21    1493 1537 1583 1662 1625 1662 1664
 22    1981 2042 1898 1983 2067 2072 1995
 23    1515 1623 1606 1684 1660 1722 1715
 24    1623 1637 1539 1534 1585 1577 1556
 25    1651 1762 1717 1841 1830 1845 1809
 26    1592 1692 1688 1649 1637 1735 1773
 27    1770 1887 1721 1840 1864 1884 1851
 28    1915 1969 1891 1943 1952 1967 1924
 29    1719 1822 1687 1710 1767 1821 1720
 31    1941 2001 2027 2086 2127 2171 2078
-----------------------------------------



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





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