Subject: [IGSREPORT-1076] Wk 0755 GFZ Analysis Report
From: G.Gendt, G. Dick
Date: Fri, 8 Jul 1994 5:12:37 PDT

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IGS Electronic Report    Fri Jul  8  5:12:37 PDT 1994      Message Number 1076
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Author: G.Gendt, G. Dick
Subject: Wk 0755 GFZ Analysis Report

Subject: Wk 0755 GFZ Analysis Report 

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GFZ ANALYSIS REPORT   GPS-WEEK 0755 (DAYS 177-183, DATES 26-06-94 TO 02-07-94)
******************************************************************************

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: 
______________________________________________________________________________
gfz07557.sum           this text file
gfz07557.erp           Earth rotation parameters 
gfz0755[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________

ERP RESULT

GFZ    ERP-RESULTS for WEEK 754       DAYS   177 - 183 
_______________________________________________________________________________
  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
49529.500  14536  21991 -28205578  1159    3    4    0    4    29 19 25
49530.500  14326  21802 -28206780  1162    3    3    0    4    30 20 24
49531.500  14198  21595 -28207982  1166    4    4    0    4    30 19 24
49532.500  14020  21473 -28209208  1218    3    3    0    4    30 19 24
49533.500  13800  21347 -28210410  1222    3    3    0    4    30 19 25
49534.500  13693  21210 -28211535  1073    3    3    0    4    31 20 25
49535.500  13465  21101 -28212802  1206    3    3    0    4    30 20 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  177    178    179    180    181    182    183
-------------------------------------------------------
 1    12     14     14     17     12     39     13  
 2    25     25     28     31     60 E   35 E   27 E
 4    66     94     78    128     67 E  143 E  135 E
 5    54     51     46     40     44 E   32 E   50 E
 6    29     29     35     24     34     63     34  
 7    25     26     35     22     42     36     25  
 9    20     22     19     21     15     32     19  
12    33     -      -      -      -  E   50 E   20 E
14    22     20     18     21     48     25     18  
15    51     52    115     69    123 E   67 E   62 E
16    18     11     17     15     32     26     17  
17    42     74     62     47     66 E   36 E   44 E
18    28     21     25     26     26     30     16  
19    21     24     44     21     66     35     25  
20    50     43     41     43     34 E   26 E   72 E
21    24     23     24     24     26     33     22  
22    36     34     38     45     24 E   28 E   45 E
23    16     26     22     29     19     20     14  
24    66     62     96     86     84 E   44 E   52 E
25    15     40     13     21     37     22     34  
26    17     14     12     12      8     16     10  
27    13     17     17     15     27     24     16  
28    21     22     24     22     16     20     16  
29    18     20     62     15     37     12      7  
31    20     17     41     22     18     24     19  
 
MEAN  33     38     47     35     42     35     33
---------------------------------------------------

REMARKS: (1) PRN12 removed from processing on days 178-181,
             because of modelling  problems
         (2) station MATE not used at day 179 (problems with data)
                
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#               177  178  179  180  181  182  183
----------------------------------------------------
onsa  105001   I'92      1269 1106 1480 1529 1298 1296 1649
kosg  110001 F I'92      1611 1573 1550 1553 1598 1608 1610
madr  120001 F I'92      1247 1312 1091  817 1054 1183 1101
mate  130001 F           1622 1213  288 1378 1103  438  649
trom  150001 F I'92      1665 1629 1563 1545 1578 1622 1729
wetb  160001 F I'92      1635 1603 1546 1510 1631 1691 1703
mets  180001   I'92      1566 1517 1494 1514 1583 1618 1622
usud  200002             1510 1464 1536 1564 1527 1529 1498
taiw  220001 F I'92      1713 1686 1641 1687 1679 1683 1686
tidb  305001 F           1275 1223 1211 1230 1143 1262 1472
yar1  310001 F I'92      1632  656 1173 1218    0 1204 1430
hob1  320001             1587 1528 1476 1506 1559 1193    0
algo  400003 F I'92      1640 1597 1596 1593 1634 1683 1686
stjo  405002 F           1682 1654 1641 1626 1660 1712 1726
wes2  408001             1677 1630 1501 1588 1621 1668 1676
gold  410001 F I'92      1152 1173 1193 1261 1183 1627 1678
jplm  415001 F           1642 1590 1589 1637 1640 1667 1695
fair  420001 F I'92      1512 1484 1527 1632 1628 1678 1668
yell  470002 F I'92      1548 1566 1597 1625 1612 1615 1583
drao  475002 F           1612 1574 1516 1592 1633 1698 1713
rcm5  482001   I'92      1654 1612 1636 1641 1640 1685 1698
sant  500001 F I'92       996 1134 1116 1104  953 1073 1006
kour  510001 F           1509 1544 1553 1544 1544 1549 1573
fort  520001             1495 1516 1478 1501 1527 1559 1537
areq  530002             1687 1657 1595 1608 1645 1724 1708
hart  600001 F I'92      1053 1195  972  927 1196 1057  817
masp  610001 F I'92      1661 1632 1573 1549 1649 1722 1723
mas1  610101             1673 1595 1567 1559 1609 1671 1696
kokb  700001 F I'92         0  299    0    0  519 1473 1647
pama  710001                0    0  298 1094 1016  990 1135
mcmu  800002             1672 1607 1628 1626 1687 1697 1685

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
PRN     177  178  179  180  181  182  183
------------------------------------------
  1    2012 1960 2098 2082 2045 2041 2015
  2    1895 1815 1803 1913 1758 1857 1938
  4    1653 1641 1634 1637 1601 1728 1740
  5    2071 2045 2044 2196 2055 2113 2082
  6    1886 1986 1992 2028 2026 2026 2020
  7    1755 1701 1762 1816 1681 1765 1767
  9    2040 2047 1368 1744 2066 2140 2233
 12    1425    0    0    0  539 1969 1991
 14    1784 1737 1692 1698 1629 1747 1707
 15    1668 1605 1541 1626 1639 1635 1498
 16    2000 1858 1918 1993 1902 1932 1958
 17    1867 1833 1787 1976 1877 1941 1882
 18    1738 1788 1612 1700 1682 1653 1701
 19    1902 1811 1630 1795 1734 1694 1794
 20    1929 2005 1981 2097 1969 2013 2007
 21    1733 1792 1906 1956 1869 1942 1916
 22    1726 1662 1737 1808 1787 1779 1716
 23    2027 2145 2151 2060 2015 2145 2134
 24    1759 1710 1560 1676 1592 1700 1780
 25    1762 1903 1911 1987 1979 1904 1911
 26    2075 2017 2116 2263 2234 2355 2345
 27    1988 1885 1831 2022 1934 1973 1979
 28    1633 1647 1721 1807 1763 1802 1800
 29    1697 1725 1604 1642 1643 1743 1634
 31    1745 1737 1709 1801 1918 1933 1902
-----------------------------------------

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