Subject: [IGSREPORT-1002] GFZ Analysis Report (week 750)
From: Gerd Gendt and Galina Dick
Date: Fri, 3 Jun 1994 2:37:57 PDT

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IGS Electronic Report    Fri Jun  3  2:37:57 PDT 1994      Message Number 1002
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Author: Gerd Gendt and Galina Dick
Subject: GFZ Analysis Report (week 750)

Subject: GFZ Analysis Report (750)

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GFZ ANALYSIS REPORT   GPS-WEEK 0750 (DAYS 142-148, DATES 22-05-94 TO 28-05-94)
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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: 
______________________________________________________________________________
gfz07507.sum           this text file
gfz07507.erp           Earth rotation parameters 
gfz0750[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________

ERP RESULT

GFZ    ERP-RESULTS for WEEK 750       DAYS   142 - 148
__________________________________________________________________________________
  MJD       Xpole    Ypole    UT1R-TAI   Xsig   Ysig  UTsig Nr Nf Nt  LODR  LODsig
             (")      (")     (sec)        (")     (")                 ms/d  ms/d
49494.500  0.18678  0.28996 -28.145490  0.00003 0.00003 0.0 30 20 25  2.1794 0.004
49495.500  0.18587  0.28848 -28.147593  0.00004 0.00004 0.0 30 20 25  2.1466 0.004
49496.500  0.18408  0.28702 -28.149634  0.00004 0.00004 0.0 30 20 25  1.9879 0.005
49497.500  0.18312  0.28514 -28.151742  0.00004 0.00004 0.0 30 20 25  1.9645 0.005
49498.500  0.18125  0.28285 -28.153821  0.00004 0.00004 0.0 30 20 25  1.8824 0.004
49499.500  0.17994  0.28040 -28.155899  0.00004 0.00004 0.0 30 20 25  1.7977 0.005
49500.500  0.17868  0.27863 -28.157694  0.00004 0.00004 0.0 30 20 25  1.7875 0.005
----------------------------------------------------------------------------------

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  142    143    144    145    146    147    148
-------------------------------------------------------
 1    30     23     31     27     36     20     23  
 2    37     45     35     44     33     41     41  
 4    16     24     29     30     49     32     39  
 5    30     27     20     23     22     35     47  
 6    24     29     23     30     24     33     58  
 7    91     47     55     38     52    119     34  
 9    77     70    154     88 E   75 E   82 E  128 E
12    34     21     15     20 E   14     37     37  
14    26     26     30     20 E   19     36     53  
15    21     18     19     35     17     37     36  
16    15     11     16     11 E    8     26     14  
17    26     36     31     43     31     37     47  
18    32     19     35     21     44     31     22  
19   109     53     91     29     43 E   38 E   37 E
20    19     20     16     16     18     37     22  
21    24     21     33     25 E   39     35     47  
22    42     34     46     53     56     65     53  
23    12      9      6     16 E   23     18      9  
24    21     28     36     32     31     52     22  
25    67     61     47     56     51 E   96 E   50 E
26    18     32     23     17     19     25     28  
27    54     36     62     35     36 E   45 E  137 E
28    18     22     18     27     21     22     29  
29    41     44     16     23     45     19     12  
31    22     29     23     43     24     19     32  
 
MEAN  44     35     36     36     37     48     37
---------------------------------------------------

REMARKS:
                
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#               142  143  144  145  146  147  148
----------------------------------------------------
onsa  105001   I'92      1603 1584 1518 1623 1574 1580 1639
kosg  110001 F I'92      1414 1473 1449 1300 1329 1410 1442
madr  120001 F I'92      1275 1356 1337 1026 1186  244 1201
mate  130001 F            317  982  797  866 1121 1022  906
trom  150001 F I'92      1689 1710 1688 1670 1683 1635 1543
wetb  160001 F I'92      1156 1466  906  702 1162 1195 1200
mets  180001   I'92      1640 1610 1569 1578 1623 1619 1619
usud  200002             1518 1381 1453 1529 1586 1544  808
taiw  220001 F I'92      1442 1367 1036  125 1302  702 1667
tidb  305001 F           1261 1185 1068 1123 1209 1201 1283
yar1  310001 F I'92      1622 1451  841  967 1327 1365 1467
hob1  320001             1578 1578 1556 1220  266  266    0
algo  400003 F I'92      1611 1614 1606 1642 1615 1639 1642
stjo  405002 F           1663 1673 1666 1676 1670 1678 1651
wes2  408001             1669 1653 1648 1685 1623 1632 1593
gold  410001 F I'92      1370 1393 1119 1104 1260 1339 1425
jplm  415001 F           1726 1751 1694 1709 1745 1750 1742
fair  420001 F I'92      1710 1690 1623 1660 1698 1710 1630
yell  470002 F I'92      1566 1495 1471 1591 1691 1670 1590
drao  475002 F           1711 1696 1691 1707 1718 1716 1711
rcm5  482001   I'92      1696 1685 1660 1620 1603 1596 1606
sant  500001 F I'92      1474 1695 1735 1754 1589 1474 1278
kour  510001 F           1491 1528 1504 1512 1520 1503 1483
fort  520001             1187  213  966  930 1005  204  809
areq  530002             1024 1669 1698 1720 1717 1678 1661
hart  600001 F I'92      1116  927  639  781  756  732  762
masp  610001 F I'92      1713 1732 1665 1692 1719 1731 1715
kokb  700001 F I'92      1754 1765 1680 1726 1752 1733 1690
pama  710001             1071 1009 1075  970  863  730  940
mcmu  800002             1687 1606 1553 1585 1187    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     142  143  144  145  146  147  148
------------------------------------------
  1    1739 1773 1694 1588 1603 1528 1424
  2    1603 1582 1471 1395 1404 1383 1426
  4    1722 1634 1675 1535 1514 1490 1559
  5    1470 1612 1677 1698 1656 1609 1623
  6    1898 1965 1890 1829 1917 1709 1767
  7    1563 1511 1427 1382 1618 1321 1462
  9    1809 1869 1703 1750 1782 1544 1628
 12    1848 1817 1797 1864 1879 1694 1767
 14    1632 1499 1405 1251 1408 1257 1332
 15    1552 1672 1417 1413 1496 1304 1468
 16    1761 1944 2138 2015 2007 1801 1897
 17    1871 1855 1796 1774 1857 1709 1721
 18    1844 1739 1059 1464 1626 1521 1431
 19    1773 1675 1626 1518 1687 1392 1544
 20    1663 1717 1699 1545 1650 1586 1657
 21    1816 1779 1722 1650 1691 1533 1471
 22    1507 1580 1667 1472 1626 1529 1540
 23    1963 1967 1757 1675 1739 1529 1684
 24    1997 1913 1924 1823 1931 1569 1630
 25    1685 1761 1652 1627 1668 1471 1469
 26    2093 2099 1988 2012 1979 1954 1942
 27    1711 1754 1709 1794 1755 1428 1591
 28    1695 1834 1732 1648 1540 1573 1523
 29    1717 1564 1578 1411 1493 1399 1560
 31    1822 1822 1708 1660 1573 1465 1587
-----------------------------------------

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