[IGSREPORT-0970] GFZ Analysis Report (week 748)

Gerd Gerd
Thu May 19 06:03:01 PDT 1994


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IGS Electronic Report    Thu May 19  6:03:01 PDT 1994      Message Number 0970
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Author: Gerd Gendt and Galina Dick
Subject: GFZ Analysis Report (week 748)

Subject: GFZ Analysis Report (748)


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GFZ ANALYSIS REPORT   GPS-WEEK 0748 (DAYS 128-134, DATES 08-05-94 TO 14-05-94)
******************************************************************************

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: 
______________________________________________________________________________
gfz07487.sum           this text file
gfz07487.erp           Earth rotation parameters 
gfz0748[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________


ERP RESULT

GFZ    ERP-RESULTS for WEEK 748       DAYS   128 - 134
__________________________________________________________________________________
  MJD       Xpole    Ypole    UT1R-TAI   Xsig   Ysig  UTsig Nr Nf Nt  LODR  LODsig
             (")      (")     (sec)        (")     (")                 ms/d  ms/d
49480.500  0.18726  0.31804 -28.112649  0.00004 0.00005 0.0 30 20 25  2.4184 0.005
49481.500  0.18749  0.31591 -28.115086  0.00004 0.00004 0.0 30 20 25  2.4118 0.005
49482.500  0.18862  0.31373 -28.117511  0.00004 0.00004 0.0 29 20 24  2.3814 0.005
49483.500  0.18904  0.31174 -28.120013  0.00004 0.00004 0.0 30 20 25  2.5052 0.005
49484.500  0.18971  0.30998 -28.122422  0.00004 0.00004 0.0 30 20 25  2.4437 0.005
49485.500  0.19023  0.30760 -28.124709  0.00004 0.00004 0.0 29 19 25  2.3783 0.004
49486.500  0.19026  0.30566 -28.127017  0.00004 0.00004 0.0 29 19 25  2.3542 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  128    129    130    131    132    133    134
-------------------------------------------------------
 1    36     36     24     47     46     32     46  
 2    35     44      -     63     35     31     47  
 4    20     16     26     11     27     24     31  
 5    22     31     26     20     28     18     19  
 6    17     42 E   26 E   22 E   33 E   34 E   42 E
 7   108    109 E   90 E   53 E   81 E   84 E   72 E
 9    35     43     40     45 E   31 E   24 E   37 E
12     9     13     16      7     16      9      8  
14    23     39     34     43     21     21     38  
15    19     28     25     26     16     27     22  
16    20     18     12     21     23     14     20  
17    25     44     23     42     28     27     29  
18    27     30     26     31     99     30     31  
19    28 E   40 E   28 E   41 E   35 E   32 E   67 E
20    16     23     31     25     29     19     15  
21    20     28     30     41     31     28     61  
22    21     23     56     38     41     53     41  
23    27     11     41     25     27      7     18  
24    21     15     29     26     26     19     33  
25    23     70     57 E   36 E   74 E   46 E   53 E
26    23     24     28     19     25     22     24  
27    29     34     30 E   28 E   31 E   29 E   38 E
28    31 E   23 E   49 E   39 E   46 E   53 E   68 E
29    32     43     18     31     37     24     21  
31    43 E   30 E   35 E   30 E   43 E   27 E   53 E
 
MEAN  33     40     37     35     42     33     41
---------------------------------------------------

REMARKS: (1) AS all days
         (2) PRN02 deleted from products on day 130, modelling problems
                
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#               128  129  130  131  132  133  134
----------------------------------------------------
onsa  105001   I'92      1597 1463 1583 1608 1635 1634 1613
kosg  110001 F I'92      5952 1302 1246 1437 1408 1306 1534
madr  120001 F I'92      5894 1124 1090 1261 1083 1191 1347
mate  130001 F           5540  895  954  513  909 1075 1169
trom  150001 F I'92      6394 1551 1526 1576 1601 1592 1593
wetb  160001 F I'92      5752 1226 1043 1185 1140 1311 1246
mets  180001   I'92      5702  880    0  776 1585 1600 1622
usud  200002             6390 1554 1460 1443 1546 1606 1509
taiw  220001 F I'92      5812 1336 1106  265 1000 1388 1332
tidb  305001 F           5524 1049  960 1287 1465 1306 1306
yar1  310001 F I'92      4560 1011  983  996 1159  996  425
hob1  320001             5716 1592 1556 1612 1653 1629 1610
algo  400002 F I'92      6094 1614 1616 1606 1593 1585 1593
stjo  405002 F           3586  616 1672 1621 1638 1648 1645
wes2  408001             6502 1661 1683 1634 1591 1646 1650
gold  410001 F I'92      5918 1510 1429 1298 1165 1355 1331
jplm  415001 F           6534 1676 1708 1683 1268    0    0
fair  420001 F I'92      3360 1673 1686 1655 1692 1705 1689
yell  470002 F I'92      6242 1322  530 1532 1572 1569 1591
drao  475002 F           5760 1701 1700 1672 1664 1679 1706
rcm5  482001   I'92      6788 1466 1310 1417 1466 1632 1686
sant  500001 F I'92      5316  522  619  895 1354 1585 1607
kour  510001 F           5366 1543 1530 1482 1496 1556 1553
fort  520001             6144 1563 1572 1579 1542 1538 1544
areq  530002             5728 1651 1666 1671 1685 1716 1703
hart  600001 F I'92      4430  688 1080  800  266  354  759
masp  610001 F I'92      5712 1693 1730 1735 1698 1730 1706
kokb  700001 F I'92      3520  893 1748 1739 1742 1743 1763
pama  710001             5270  726  185  707  848  907  993
mcmu  800002             6212 1699 1687 1654 1592 1673 1729

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     128  129  130  131  132  133  134
------------------------------------------
  1    3102 1444 1419 1558 1542 1578 1589
  2    6081 1246 1133 1552 1634 1509 1574
  4    3500 1739 1688 1650 1792 1735 1628
  5    6745 1571 1589 1481 1690 1790 1768
  6    6903 1797 1796 1809 1844 1890 1837
  7    6566 1305 1347 1370 1410 1427 1363
  9    3401 1563 1550 1703 1748 1726 1736
 12    3412 1697 1583 1681 1785 1769 1814
 14    3052 1522 1355 1443 1558 1510 1588
 15    5780 1290 1327 1313 1459 1368 1374
 16    6699 2093 1895 1700 1796 2067 2131
 17    7524 1740 1699 1792 1782 1859 1867
 18    7092 1579 1575 1608 1839 1811 1824
 19    6889 1510 1476 1438 1633 1632 1686
 20    6501 1442 1448 1537 1553 1607 1605
 21    6258 1397 1435 1516 1539 1577 1567
 22    6194 1419 1448 1587 1553 1648 1606
 23    6667 1627 1636 1825 1751 1721 1735
 24    7214 1781 1757 1771 1987 2055 2005
 25    6467 1371 1406 1477 1564 1590 1572
 26    6545 1905 1896 1991 1816 1813 1961
 27    7233 1571 1588 1712 1796 1791 1820
 28    6748 1516 1459 1620 1665 1589 1617
 29    6351 1562 1607 1676 1684 1717 1653
 31    3180 1513 1546 1529 1636 1476 1634
-----------------------------------------



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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