[IGSREPORT-0838] GFZ Analysis Report (week 738)

Gerd Gerd
Thu Mar 10 23:12:58 PST 1994


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IGS Electronic Report    Thu Mar 10 23:12:58 PST 1994      Message Number 0838
******************************************************************************

Author: Gerd Gendt and Galina Dick
Subject: GFZ Analysis Report (week 738)

Subject: GFZ Analysis Report (738)


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GFZ ANALYSIS REPORT   GPS-WEEK 0738 (DAYS 058-064, DATES 27-02-94 TO 05-03-94)
******************************************************************************

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: 
______________________________________________________________________________
gfz07387.sum           this text file
gfz07387.erp           Earth rotation parameters 
gfz0738[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________


ERP RESULT

Attention: UT is given for midnight
           UT differences plus dLODR(ms) gives the adjusted LODR
           
 
  MJD        XP       YP  UT1R-IAT for 0h SIGX   SIGY  SIGLOD NS FIX NV  dLODR 
           arcsec   arcsec     sec      arcsec  arcsec   ms                ms
49410.500  0.14195  0.44762 -27.930200  0.00005 0.00005 0.006 29 20 23   0.0363
49411.500  0.14341  0.44655 -27.932900  0.00005 0.00005 0.006 30 20 23   0.0742
49412.500  0.14422  0.44464 -27.935600  0.00003 0.00004 0.004 30 20 23   0.0701
49413.500  0.14507  0.44305 -27.938300  0.00003 0.00003 0.004 30 20 23   0.0691
49414.500  0.14637  0.44103 -27.941000  0.00003 0.00003 0.004 30 20 22   0.0419
49415.500  0.14751  0.43927 -27.943700  0.00003 0.00003 0.004 29 19 24  -0.0075
49416.500  0.14819  0.43756 -27.946400  0.00004 0.00004 0.004 28 18 24  -0.0468
-------------------------------------------------------------------------------


  MJD          LODR    +/-
             (ms/day)

-----------------------------
49410.5000    2.7363  0.006
49411.5000    2.7742  0.006
49412.5000    2.7701  0.004
49413.5000    2.7691  0.004
49414.5000    2.7419  0.004
49415.5000    2.6925  0.004
49416.5000    2.6532  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  058    059    060    061    062    063    064
-------------------------------------------------------
 1    16     18     17     22     26     33     31  
 2    14     27     18     35     30     28     25  
 4    16     21     16     19     12     17     12  
 5    26     34     29     26     35     27     28  
 7    17     17     27     26     25     22     27  
 9    13     39     16     15     12     14     15  
12    10     18     15      7      9     14     10  
13    22     16     11     13     14      9      9  
14    29 E   25 E   24 E   35 E   24 E   28 E   28  
15    20     25     15     21     19     23     18  
16    96 E   47 E   24 E   35 E   24 E   26 E   45  
17    28     29     30     27     28     26     29  
18    13     23     22     21     22     20     17  
19    29     16     20     16     20     22     15  
20    25     35     32     19     29     24     25  
21    35 E   37 E   37 E   47 E   36 E   28     50  
22    59     29     35     20     22     27     21  
23    36 E   30 E   38 E   21 E   25 E   23 E   24  
24    20     26     21     18     15     18     16  
25    24     20     17     17     18     20     19  
26    39     23     33     31     23     25     36  
27    21     21     19     17     19      -     20  
28     -      -      -      -      -      -     21  
29    21     28     21     30     26     31     23  
31    80     65     32     27     23     23     18  
 
MEAN  36     30     25     25     23     24     25
---------------------------------------------------

REMARKS: (1) AS all days
         (2) PRN27 manoeuvre on day 62
         (3) PRN03 not in products because of lack or few data
         (4) PRN28 not in products on days 58 to 62 because of lack or few 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#                58   59   60   61   62   63   64
----------------------------------------------------
onsa  105001   I'92      1472 1472 1602 1606 1636 1701 1172
kosg  110001 F I'92       959 1532 1680 1595 1580 1696 1680
madr  120001 F I'92      1349 1109 1343 1516 1680 1723 1612
mate  130001 F           1604 1608 1690 1674 1724 1706 1630
trom  150001 F I'92      1704 1690 1525 1663 1341   62    0
wetb  160001 F I'92      1689 1701 1648 1669 1685 1750 1642
mets  180001   I'92      1575 1568 1209  407 1595 1655 1235
usud  200002             1413  781 1641 1631 1646 1726 1705
taiw  220001 F I'92      1423  722 1615 1581 1643 1682 1605
tidb  305001 F           1244  370 1569 1550 1602 1635 1458
yar1  310001 F I'92      1373 1360 1553 1552 1577  847 1200
hob1  320001             1419 1356 1581 1460 1439 1513 1587
algo  400002 F I'92      1623 1675 1692 1618 1622 1768 1734
stjo  405001 F            779  383 1501 1429 1091    0    0
wes2  408001             1590 1560 1548 1619  605  325 1269
gold  410001 F I'92      1543 1306 1545 1642 1642 1663 1612
jplm  415001 F           1315 1350 1377 1557 1699 1770 1632
fair  420001 F I'92      1078 1601 1530 1607 1685 1800 1694
yell  470001 F I'92      1567 1615 1600 1496 1518 1600 1594
rcm5  482001   I'92      1661 1663 1718 1635 1555 1671 1674
sant  500001 F I'92       679  446 1726 1688 1655 1730 1606
kour  510001 F           1410  685 1556 1506 1527 1145  901
fort  520001             1520 1575 1536 1540 1416 1585 1545
areq  530001             1433 1477 1652 1629 1604 1674 1637
masp  610001 F I'92      1583 1643 1670 1628 1664 1707 1704
kokb  700001 F I'92       565 1303 1491 1722 1681 1758 1720
drao  475002 F            480 1379 1701 1353 1507 1707 1747
hart  600001 F I'92       306 1221 1319 1305 1359 1298 1363
pama  710001              314 1292 1379 1362 1369 1306 1377
mcmu  800002                0  637 1574 1584 1661 1753 1361
-----------------------------------------------------------

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      58   59   60   61   62   63   64
------------------------------------------
  1    1495 1661 1902 1913 1866 1685 1635
  2    1526 1590 1923 1883 1884 1666 1729
  3     495  906 1332  345 1560 1548  801
  4    1760 1713 2158 2322 2174 1917 1862
  5    1712 1772 2052 1919 1997 1810 1887
  7    1762 1772 2111 2141 2061 1835 1793
  9    1254 1310 1705 1692 1730 1557 1578
 12    1415 1636 1788 1760 1769 1642 1664
 13    1640 1720 2042 2105 1965 1705 1794
 14    1549 1467 1778 1861 1830 1813 1668
 15    1646 1626 1862 1883 1861 1724 1591
 16    1391 1498 1934 1919 1811 1618 1721
 17    1362 1449 1827 1811 1842 1683 1594
 18    1597 1549 1887 1961 1975 1779 1819
 19    1465 1367 1798 1744 1812 1556 1598
 20    1443 1586 1792 1811 1779 1717 1796
 21    1447 1484 1742 1717 1726 1664 1479
 22    1291 1271 1756 1712 1732 1657 1624
 23    1390 1397 1658 1640 1671 1615 1450
 24    1753 1836 2279 2277 2256 2070 2008
 25    1452 1510 1877 1863 1879 1711 1726
 26    1387 1359 1826 1854 1857 1657 1596
 27    1362 1510 1871 1869  981 1295 1507
 28       0    0    0    0  234 1543 1517
 29    1663 1611 1966 1955 1933 1794 1657
 31    1413 1480 1905 1867 1823 1695 1602
-----------------------------------------



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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