[IGSREPORT-1278] Wk 0768 GFZ Analysis Report

G.Gendt G.Gendt
Fri Oct 7 03:31:07 PDT 1994


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IGS Electronic Report    Fri Oct  7  3:31:07 PDT 1994      Message Number 1278
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Author: G.Gendt, G. Dick
Subject: Wk 0768 GFZ Analysis Report

Subject: Wk 0768 GFZ Analysis Report


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GFZ ANALYSIS REPORT   GPS-WEEK 0768 (DAYS 268-274, DATES 25-09-94 TO 01-10-94)
******************************************************************************

Submitted by: G. Gendt, Ch. Reigber, G. Dick, Th. Nischan, W. Sommerfeld  
              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: 
______________________________________________________________________________
gfz07687.sum           this text file
gfz07687.erp           Earth rotation parameters 
gfz0768[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________


ERP RESULT

GFZ    ERP-RESULTS for WEEK 768       DAYS   268 - 274 
_______________________________________________________________________________
  MJD      Xpole  Ypole  UT1R-TAI  LODR Xsig Ysig UTsig LODsig Nr Nf Nt
          10**-5" 10**-5"  usec    us/d    10**-5"   us  us/d
49620.500  -5030  19174 -28359610  2423    3    3    0    3    28 19 25
49621.500  -5340  19308 -28362014  2430    3    3    0    4    30 19 25
49622.500  -5589  19446 -28364381  2363    3    3    0    4    31 19 25
49623.500  -5841  19571 -28366753  2308    3    3    0    3    30 19 25
49624.500  -6150  19716 -28369139  2280    3    3    0    3    30 19 25
49625.500  -6389  19892 -28371422  2246    3    3    0    3    30 19 25
49626.500  -6579  20037 -28373701  2203    3    3    0    4    30 19 25
--------------------------------------------------------------------------------




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  268    269    270    271    272    273    274
-------------------------------------------------------
 1    24 E   30 E   22 E   29 E   41 E   44 E   43 E
 2    25     26     30     24     39     40     33  
 4    22     20     13     26     16     20     23  
 5    20     17     22     19     22     23     21  
 6    32 E   29 E   28 E   28 E   31 E   31 E   39 E
 7    46 E   36 E   36 E   34 E   46 E   48 E   54 E
 9    19     13     21     13     19     38     18  
12    22     23     14      9     25     19     16  
14    18     17     16     15     18     14     12  
15    21     32     24     27     17     10     16  
16    27     29     19     29     34     13     24  
17    24     16     29     18     26     18     17  
18    45 E   50 E   43 E   42 E   51 E   39 E   40 E
19    26     24     27     27     29     26     24  
20    21     22     28     23     28     23     19  
21    26     27     25     36     27     32     17  
22    21     19     16     16     19     20     16  
23    69     67     60     57     83     64     71  
24    32     23     25     28     31     18     18  
25    16     15     19     14     17     15     15  
26    31 E   28 E   26 E   27 E   44 E   96 E   40 E
27    25     24     22     21     26     28     25  
28    30 E   34 E   32 E   31 E   35 E   46 E   36 E
29    28 E   34 E   35 E   34 E   43 E   32 E   34 E
31    31 E   43 E   50 E   35 E   31 E   31 E   28 E
 
MEAN  30     30     29     28     35     36     31
---------------------------------------------------

REMARKS:
                
CLOCK ESTIMATION:  ALGO was used as time reference



STATIONS USED BY GFZ INCLUDING STATISTICS

Sampling rate: 6 minutes         
                                                          
 IGS  INTERNAL         OBSERVATIONS for DAY (32-hour arcs used)
 CODE  STA#               268  269  270  271  272  273  274
----------------------------------------------------
onsa  105001   I'92      1646 1656 1598 1660 1622 1620 1506
kosg  110001 F I'92      1600 1569 1596 1584 1583 1579 1502
madr  120001 F I'92      1682 1674 1661 1670 1668 1659 1665
mate  130001 F           1689 1687 1716 1700 1698 1689 1677
trom  150001 F I'92      1643 1720 1724 1554 1561 1486  308
wetb  160001 F I'92      1561 1676 1704 1698 1702 1688 1667
mets  180001   I'92         0 1145 1542 1691 1663 1583 1618
usud  200002             1483 1517 1641 1647 1645 1579 1503
taiw  220001 F I'92      1692 1706 1701 1672 1642 1712 1701
tidb  305001 F           1469 1622 1687 1650 1585 1586 1668
yar1  310001 F I'92      1705 1694 1717 1715 1686 1685 1697
hob2  321001             1665 1688 1665 1539 1675 1496 1615
algo  400003 F I'92      1622 1632 1645 1630 1612 1630 1657
stjo  405002 F           1689 1679 1687 1652 1645 1659 1683
wes2  408001             1439 1632 1616 1640 1617 1624 1646
gold  410001 F I'92      1662 1609 1647 1617 1636 1562 1664
jplm  415002 F            914  999  581 1584 1519 1638 1638
fair  420001 F I'92      1695 1715 1732 1725 1740 1735 1698
yell  470002 F I'92      1642 1643 1644 1637 1612 1604 1617
drao  475002 F           1667 1664 1637 1651 1628 1631 1673
rcm5  482001   I'92      1615 1656 1644 1627 1616 1575 1642
sant  500001 F I'92      1411 1398 1394 1416 1418 1409 1420
kour  510001 F           1595 1584 1616 1583 1585 1605 1581
fort  520001             1591 1538 1209 1590 1575 1596 1210
areq  530002             1679 1620 1641 1630 1380 1379 1663
hart  600001 F I'92      1251  453  855 1316 1116  820  989
mas1  610101             1659 1646 1660 1609 1546 1541 1541
kokb  700001 F I'92      1682 1531 1286 1298 1513 1713 1354
eisl  720001                0    0  391 1607 1651 1629 1665
mcmu  800002             1667 1567 1623 1637 1633 1629 1571
dav1  810001                0  335 1097    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



SATELLITE STATISTICS

                OBSERVATIONS for DAY (32-hour arcs used)
PRN     268  269  270  271  272  273  274
------------------------------------------
  1    1963 2031 2108 2112 2054 2011 1949
  2    1641 1759 1761 1846 1844 1815 1772
  4    1709 1719 1803 1911 1893 1806 1790
  5    1944 2111 2101 2149 2119 2084 2100
  6    2174 2139 2231 2343 2367 2344 2264
  7    1688 1719 1654 1769 1779 1711 1726
  9    1732 1781 1766 1842 1706 1761 1693
 12    1814 1836 1890 1971 1933 1944 1840
 14    1909 1857 1950 2051 2112 2082 2004
 15    1523 1516 1729 1744 1837 1901 1803
 16    1790 1857 1899 1828 1999 1833 1757
 17    1986 2025 2090 2159 2117 2061 1974
 18    2104 2076 2117 2202 2219 2150 2155
 19    1924 1940 1976 2095 2088 1934 1916
 20    2056 2080 2135 2230 2158 2182 2090
 21    1769 1805 1839 1867 1813 1749 1801
 22    2295 2328 2516 2634 2617 2621 2520
 23    1682 1741 1743 1770 1727 1828 1690
 24    1800 1881 1925 1946 2017 1919 1984
 25    2248 2290 2319 2429 2306 2380 2290
 26    1621 1658 1733 1778 1757 1862 1845
 27    1911 2008 1970 2089 2082 2037 2015
 28    2182 2211 2329 2325 2147 2160 2135
 29    1992 2018 2009 2078 2133 2143 2124
 31    2125 2104 2238 2324 2176 2050 2058
-----------------------------------------



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
    


[Mailed From: sofe at gfz-potsdam.de (Waltraud Sommerfeld)]



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