Subject: [IGSREPORT-1044] GFZ Analysis Report (week 753)
From: Gerd Gendt and Galina Dick
Date: Thu, 23 Jun 1994 5:20:45 PDT

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IGS Electronic Report    Thu Jun 23  5:20:45 PDT 1994      Message Number 1044
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Author: Gerd Gendt and Galina Dick
Subject: GFZ Analysis Report (week 753)

Subject: GFZ Analysis Report (753)

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GFZ ANALYSIS REPORT   GPS-WEEK 0753 (DAYS 163-169, DATES 12-06-94 TO 18-06-94)
******************************************************************************

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: 
______________________________________________________________________________
gfz07537.sum           this text file
gfz07537.erp           Earth rotation parameters 
gfz0753[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________

ERP RESULT

GFZ    ERP-RESULTS for WEEK 753       DAYS   156 - 162
__________________________________________________________________________________
  MJD       Xpole    Ypole    UT1R-TAI   Xsig   Ysig  UTsig Nr Nf Nt  LODR  LODsig
             (")      (")     (sec)        (")     (")                 ms/d  ms/d
49515.500  0.16309  0.24742 -28.184650  0.00003 0.00004 0.0 31 20 25  1.7005 0.004
49516.500  0.16185  0.24515 -28.186479  0.00003 0.00003 0.0 31 20 25  1.7580 0.004
49517.500  0.16123  0.24313 -28.188250  0.00003 0.00003 0.0 30 19 25  1.6999 0.004
49518.500  0.16051  0.24075 -28.190072  0.00003 0.00003 0.0 31 20 24  1.7432 0.004
49519.500  0.15987  0.23954 -28.191878  0.00003 0.00003 0.0 31 20 24  1.7554 0.004
49520.500  0.15914  0.23770 -28.193639  0.00003 0.00003 0.0 31 20 25  1.6783 0.004
49521.500  0.15795  0.23598 -28.195435  0.00004 0.00004 0.0 30 19 25  1.6702 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  163    164    165    166    167    168    169
-------------------------------------------------------
 1    25     18     20     18     18     16     23  
 2    34     30     25     30     27     21     35  
 4    41     39     19 E   38 E   34 E   38 E   52 E
 5    25     36     33     42     29     18     38  
 6    38     32     29     36     25     22     42  
 7   142     34     21     41     34     36     36  
 9    32     53     58     34     26     23     29  
12    29     51    119 E    - E    - E    - E    - E
14    25     14     19     16     23     22     28  
15    48     25     56 E   35 E   43 E   37 E   36 E
16    19     21     14     20     16     12     34  
17    28     26     32     31 E   31 E   21 E   44 E
18    18     18     29     22     18     19     25  
19    29     20     35     31     20     25     29  
20    18     23     19     19     22     22     26  
21    15     19     28     22     21     29     26  
22    32     25     25     23     28     31     26  
23     5      9     17      7      4      5     11  
24    39     20     77 E   51 E   30 E   49 E   31 E
25    32     27     32     42     24     24     23  
26    27     20     17     20     18     15     19  
27    27     19     24     22     27     22     33  
28    23     20     24     19     20     19     17  
29    20     20     20     22     20     19     30  
31    26     19     26     26     19     26     24   

MEAN  29     28     40     30     25     26     31
---------------------------------------------------

REMARKS: (1) PRN12 removed from processing on days 166-167,
             and partly on days 168-169, because of modelling 
             problems
         (2) station MATE not used at day 165 (problems with data)
                
CLOCK ESTIMATION:  ALGO was used as time reference at days 163 - 168,
                   GOLD at day 169

STATIONS USED BY GFZ INCLUDING STATISTICS

Sampling rate: 6 minutes         
                                                          
 IGS  INTERNAL         OBSERVATIONS for DAY
 CODE  STA#               163  164  165  166  167  168  169
----------------------------------------------------
onsa  105001   I'92      1455 1352 1513 1518 1204 1086 1449
kosg  110001 F I'92      1317 1231 1381 1554 1551 1289 1527
mate  130001 F           1011 1674    0 1010 1599 1524 1584
madr  120001 F I'92      1228 1217 1215 1145 1078 1214 1260
trom  150001 F I'92      1240 1267 1224 1171 1164 1154 1193
wetb  160001 F I'92      1578 1564 1457 1583 1515 1516 1562
mets  180001   I'92      1505 1584 1297  786 1507 1475 1510
usud  200002             1537 1639 1538 1427 1498 1511 1498
taiw  220001 F I'92      1585 1648 1694 1685 1684 1652 1631
tidb  305001 F           1380 1215 1246 1330 1222 1327 1228
yar1  310001 F I'92      1627 1683 1670 1630 1636 1630 1260
hob1  320001             1615 1597 1598 1543 1550 1538 1424
algo  400003 F I'92      1625 1642 1606 1543 1563 1188    0
stjo  405002 F           1531 1681 1632 1185  403 1464 1513
wes2  408001             1552 1507 1564 1558 1559 1613 1617
gold  410001 F I'92      1291 1112 1188 1283 1203 1214 1215
jplm  415001 F           1686 1120 1143 1645 1652 1447 1633
fair  420001 F I'92      1591 1653 1600 1564 1614 1623 1425
yell  470002 F I'92      1602 1623 1516 1535 1583 1616 1579
drao  475002 F           1584 1607 1580 1525 1534 1604 1660
rcm5  482001   I'92      1618 1621 1605 1566 1615 1624 1603
sant  500001 F I'92      1228 1519 1718 1654 1224 1262 1056
kour  510001 F           1513 1497 1493 1493 1498 1517 1543
fort  520001             1551 1495 1505 1489 1444 1479 1508
areq  530002             1733 1727 1649 1643 1628 1636 1594
hart  600001 F I'92      1162 1192 1050 1056  965 1012 1013
masp  610001 F I'92      1682 1675 1647 1608 1577 1581 1595
mas1  610101             1666 1679 1648 1577 1548 1588 1598
kokb  700001 F I'92      1702 1731 1753 1687 1678 1697 1677
pama  710001              868  719  992  871  808  607  891
mcmu  800002             1683 1719 1759 1679 1633 1636 1470

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     163  164  165  166  167  168  169
------------------------------------------
  1    1750 1772 1847 1947 1868 1971 1883
  2    1781 1920 1821 1821 1814 1779 1751
  4    1652 1670 1627 1604 1522 1572 1537
  5    1977 1911 1892 2022 2009 2032 1958
  6    2008 1964 2020 2029 2081 2029 1974
  7    1532 1619 1713 1664 1664 1700 1603
  9    1896 1841 1786 1847 2042 2106 2078
 12    2246 2165 1381    0    0  641  634
 14    1774 1786 1678 1721 1694 1727 1482
 15    1712 1704 1708 1710 1634 1786 1445
 16    1866 1848 2111 1829 1817 1951 1965
 17    1953 1943 1911 1973 1792 1797 1685
 18    1951 1870 1616 2019 1907 1728 1768
 19    1929 1941 1877 1942 1733 1688 1792
 20    1952 1769 1725 1903 1931 1909 1732
 21    1973 1833 1759 1888 1922 1868 1757
 22    1865 1810 1772 1934 1875 1908 1905
 23    2182 2126 2143 2174 2090 2127 1939
 24    1738 1776 1824 1823 1812 1588 1668
 25    1782 1863 1900 2001 1982 1913 1836
 26    2171 2392 2313 2325 2377 2257 2255
 27    2053 2121 2038 2031 2024 1852 1879
 28    1905 1906 1747 1808 1766 1809 1796
 29    1848 1819 1734 1863 1806 1762 1726
 31    1940 1919 1825 1896 1809 1832 1813
-----------------------------------------

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