Subject: [IGSREPORT-0923] GFZ Analysis Report (week 744)
From: Gerd Gendt and Galina Dick
Date: Wed, 27 Apr 1994 1:40:33 PDT

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IGS Electronic Report    Wed Apr 27  1:40:33 PDT 1994      Message Number 0923
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Author: Gerd Gendt and Galina Dick
Subject: GFZ Analysis Report (week 744)

Subject: GFZ Analysis Report (744)

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GFZ ANALYSIS REPORT   GPS-WEEK 0744 (DAYS 100-106, DATES 10-04-94 TO 16-04-94)
******************************************************************************

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: 
______________________________________________________________________________
gfz07447.sum           this text file
gfz07447.erp           Earth rotation parameters 
gfz0744[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
49452.500  0.18395  0.37598 -28.033840  0.00005 0.00005 0.006 29 20 26   0.1033
49453.500  0.18482  0.37440 -28.036320  0.00004 0.00005 0.005 30 20 25   0.0217
49454.500  0.18433  0.37226 -28.038800  0.00004 0.00004 0.005 30 20 26  -0.0102
49455.500  0.18406  0.37043 -28.041160  0.00004 0.00004 0.005 30 20 26   0.1016
49456.500  0.18405  0.36821 -28.043520  0.00004 0.00004 0.005 30 20 26   0.0571
49457.500  0.18343  0.36564 -28.045880  0.00004 0.00005 0.005 29 20 26  -0.0182
49458.500  0.18356  0.36381 -28.048240  0.00004 0.00004 0.005 29 20 26   0.0507
-------------------------------------------------------------------------------

  MJD          LODR    +/-
             (ms/day)

-----------------------------
49452.5000    2.5833  0.006
49453.5000    2.5017  0.005
49454.5000    2.3498  0.005
49455.5000    2.4616  0.005
49456.5000    2.4171  0.005
49457.5000    2.3418  0.005
49458.5000    2.4107  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  100    101    102    103    104    105    106
-------------------------------------------------------
 1    80 E   67 E   47 E   74 E   31 E   47 E   51 E
 2    36     32     47     30     33     32     37  
 3     -     28      -      -      -      -      -  
 4    13     12     15     11     16     24     14  
 5    27     26     20     26     31     46     25  
 6     -      -      -      -      -     73 E   48 E  
 7    31 E   36 E   55 E   90 E   37 E   82 E   89 E
 9    16     20     21     38     27     25     30  
12    30     31     28     26     18     50     21  
13     -      -      -      -      -     26     23  
14    29     41     33     26     27     24     23  
15    47     31     28     25     24     21     29  
16    23     15     19     20     13     24     19  
17    32     36     23     24     38     60     28  
18    47 E   42 E   38 E   41 E   44 E   75 E   51 E
19    24     38     31     40     40     26     74  
20    31     22     18     32     25     31     18  
21    40     55     31     27     26     42     32  
22    27     17     31     38     46     56     30  
23    46     46     13     13     32     39     19  
24    15     14     13     14     13     31     25  
25    23     23     17     40     30     37     66  
26    58 E   61 E   48 E   52 E   42 E   62 E   24 E
27    19     28     38     23     26     26     52  
28    51 E   58 E   40 E   70 E   51 E   49 E   85 E
29    45 E   33 E   32 E   32 E   31 E   37 E   60 E
31    72 E   64 E   49 E   66 E   36 E   28 E   26 E
 
MEAN  40     39     33     41     32     43     44
---------------------------------------------------

REMARKS: (1) AS all days
         (2) PRN3  not used on days 102 to 106
         (3) PRN6  not used on days 100 to 102 (no or few data)
         (4) PRN6  manoeuvre on day 103
         (4) PRN13 not used on days 100 to 103 (no 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#               100  101  102  103  104  105  106
----------------------------------------------------
onsa  105001   I'92      1604 1581 1628 1692 1698 1673 1663
kosg  110001 F I'92      1512 1157  366 1517 1437 1371 1423
madr  120001 F I'92      1074 1125 1168 1263 1152 1266 1303
mate  130001 F            840 1099 1171 1220 1274 1189 1364
trom  150001 F I'92      1633 1646 1644 1730 1690 1679 1664
wetb  160001 F I'92      1069 1132 1141 1274 1281 1025 1447
mets  180001   I'92      1110 1135 1485 1515 1519 1478 1512
usud  200002             1452 1469 1594 1546 1546 1429 1399
taiw  220001 F I'92      1140 1289 1304 1240 1253 1132  939
tidb  305001 F           1018 1013 1070 1090  995  975  917
yar1  310001 F I'92       961  794 1280 1098 1126 1216 1300
hob1  320001             1380 1458 1619 1654 1639 1628 1557
algo  400002 F I'92      1545 1570 1568 1647 1644 1628 1589
stjo  405002 F           1388 1443 1484 1679 1693 1682 1674
wes2  408001             1515 1608 1581 1660 1672 1583 1526
gold  410001 F I'92      1199 1208 1223  826 1130 1375 1299
jplm  415001 F           1273 1435 1636 1720 1713 1739 1611
fair  420001 F I'92       780  818   66  697 1380 1186 1155
yell  470002 F I'92      1509 1579 1539 1635 1630 1548 1570
drao  475002 F           1646 1703 1644 1746 1729 1680 1596
rcm5  482001   I'92      1592 1615 1592 1683 1662 1606 1663
sant  500001 F I'92       840  914  920 1134  952 1028 1118
kour  510001 F           1577 1620 1544 1521 1493 1500 1543
fort  520001             1499 1550 1544 1562 1251    0    0
areq  530002             1465 1419 1398 1599 1195  387 1573
hart  600001 F I'92       866 1025  760  361 1090  969 1134
masp  610001 F I'92      1686 1664 1668 1694 1670 1663 1692
kokb  700001 F I'92      1117  996 1361 1249 1284 1276 1479
pama  710001             1008 1038  835  963  991  977  919
mcmu  800002                0  855 1555 1604 1581 1516 1595
-----------------------------------------------------------

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     100  101  102  103  104  105  106
------------------------------------------
  1    1273 1455 1433 1284 1418 1294 1410
  2    1305 1281 1463 1466 1339 1322 1396
  3    1094 1896  541    0    0    0    0
  4    1602 1722 1913 1926 1917 1739 1898
  5    1407 1543 1636 1622 1523 1417 1723
  6       0    0    0 1504 1794 1744 1082
  7    1476 1438 1521 1517 1611 1410 1552
  9    1400 1416 1370 1501 1460 1522 1534
 12    1643 1279 1576 1681 1672 1698 1764
 13      68    0  425 1111 1867 1969 1896
 14    1432 1302 1411 1525 1522 1502 1522
 15    1232 1248 1295 1378 1499 1463 1464
 16    1790 1925 1871 1803 1884 1802 1842
 17    1720 1708 1734 1801 1747 1608 1672
 18    1602 1672 1715 1735 1751 1608 1791
 19    1357 1405 1577 1578 1707 1341 1539
 20    1468 1712 1733 1602 1621 1375 1582
 21    1325 1402 1429 1433 1464 1339 1384
 22    1662 1514 1501 1608 1572 1292 1294
 23    1481 1517 1512 1726 1725 1556 1490
 24    1793 1861 1891 1998 1263 1446 2003
 25    1494 1673 1606 1629 1660 1401 1501
 26    1729 1772 1835 1915 1683 1622 1768
 27    1505 1580 1732 1757 1718 1634 1666
 28    1408 1505 1444 1493 1606 1418 1405
 29    1681 1725 1766 1706 1866 1512 1529
 31    1351 1407 1458 1520 1481 1370 1517
-----------------------------------------

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