Subject: [IGSREPORT-2023] Wk 0818 GFZ Analysis Report
From: G.Gendt, G. Dick, Th. Nischan, W. Sommerfeld, G. Beeskow
Date: Thu, 21 Sep 1995 3:00:32 PDT

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IGS Electronic Report    Thu Sep 21  3:00:32 PDT 1995      Message Number 2023
******************************************************************************

Author: G.Gendt, G. Dick, Th. Nischan, W. Sommerfeld, G. Beeskow
Subject: Wk 0818 GFZ Analysis Report

Subject: Wk 0818 GFZ Analysis Report

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GFZ ANALYSIS REPORT   GPS-WEEK 0818 (DAYS 253-259, DATES 10-09-95 TO 16-09-95)
******************************************************************************

Submitted by: G. Gendt, Ch. Reigber, G. Dick, Th. Nischan,
              W. Sommerfeld, G. Beeskow  
              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: 
______________________________________________________________________________
gfz08187.sum           this text file
gfz08187.erp           Earth rotation parameters 
gfz0818[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________

ERP RESULT

GFZ    ERP-RESULTS for WEEK 818       DAYS   253 - 259 
_______________________________________________________________________________
  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
49970.500  19844  14120 -29169781  2005    2    2    0    3    47 17 25
49971.500  19532  13835 -29171823  1928    2    2    0    3    49 17 25
49972.500  19164  13557 -29173951  2025    2    2    0    3    48 17 25
49973.500  18911  13258 -29176036  2034    2    3    0    3    48 17 24
49974.500  18636  13056 -29178159  2120    2    2    0    3    48 17 25
49975.500  18407  12883 -29180294  2151    2    3    0    3    47 17 25
49976.500  18112  12741 -29182462  2245    2    3    0    3    46 17 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  253    254    255    256    257    258    259
-------------------------------------------------------
 1    17 E   19 E   21 E   23 E   29 E   24 E   38 E
 2    25     19     22     24     29     23     25  
 4    21     26     30     30     35     25     38  
 5    19     19     14     21     15     17     17  
 6    43 E   38 E   39 E   40 E   36 E   46 E   40 E
 7    49 E   61 E   67 E   49 E   51 E   64 E   68 E
 9    16     21     14     20     16     18     15  
12    20     14     11     12     16     10     18  
14    16     17     20     14     14     19     11  
15    14     17     22     16     17     22     14  
16    19     23     19     19     18     22     20  
17    19     19     20     21     21     34     28  
18    35 E   36 E   36 E   37 E   37 E   49 E   43 E
19    16     21     16     27     30     20     26  
20    24     22     21     22     20     19     23  
21    20     29     27     19     24     25     26  
22    20     21     17     18     21     20     25  
23    81     59     83     58     82     57     70  
24    12     15     14     13     16     13     11  
25    19     19     16     15     17     18     17  
26    26 E   30 E   25 E   26 E   26 E   30 E   28 E
27    17     18     14      -      -     18     24  
28    42 E   41 E   49 E   40 E   47 E   37 E   38 E
29    38 E   40 E   39 E   36 E   36 E   42 E   34 E
31    30 E   30 E   33 E   36 E   37 E   53 E   41 E
 
MEAN  30     30     32     29     32     32     33
---------------------------------------------------

REMARKS:(1) PNR27 deleted from sp3-file for day 256
            (manoeuvre at 02:42 UTC)

                 
CLOCK ESTIMATION:  ALGO was used as time reference

STATIONS USED BY GFZ INCLUDING STATISTICS

Sampling rate: 6 minutes         
                                                          
 IGS  INTERNAL         OBSERVATIONS for DAY (32-hour arcs used)
 CODE  STA#               253  254  255  256  257  258  259
----------------------------------------------------
onsa  105001   I'93      1508 1490 1492 1441 1497 1602 1654
kosg  110001 F I'93      1662 1659 1663 1597 1605 1643 1658
madr  120001 F I'93      1566 1608 1437 1529 1474 1381 1600
mate  130001 F I'93      1433 1440 1587 1604 1678 1662 1640
nyal  140001   I'93      1691 1690 1667 1694 1731 1495 1257
trom  150001 F I'93      1612 1649 1623 1636 1678 1639 1693
wetb  160001 F I'93      1648 1658 1684 1633 1669 1671 1652
pots  165001             1663 1574 1645 1598 1645 1305 1677
mets  180001   I'93      1635 1638 1642 1593 1621 1594 1599
zwen  190001             1585 1587 1584 1547 1524 1339 1534
usud  200002             1603 1604 1585 1524 1586 1608 1613
tskb  205001             1704 1680 1645 1610 1689 1705 1667
taiw  220001 F           1614 1633 1633 1594 1617 1658 1674
kit3  235101             1699 1683 1638 1583 1680 1224  440
lhas  240001             1693 1616 1650 1595 1624 1608 1631
tidb  305001 F I'93      1608 1640 1654 1544 1663 1656 1686
yar1  310001 F I'93      1630 1618 1572 1507 1620 1115 1571
hob2  321001             1666 1205    0    0    0    0    0
mac1  330001             1421 1389 1380 1350 1411 1417 1428
algo  400003 F I'93      1679 1656 1654 1607 1690 1660 1669
stjo  405003   I'93      1692 1669 1678 1634 1695 1680 1700
wes2  408001   I'93      1666 1667 1662 1617 1673 1659 1674
nlib  409001   I'93      1597 1606 1587 1535 1601 1597 1608
gold  410001 F I'93      1651 1632 1591 1444 1532 1583 1627
jplm  415002   I'93         0  379 1384 1577 1548 1642 1646
mdo1  418001             1533 1570 1524 1525 1215    0    0
fair  420001 F I'93      1712 1672 1648 1618 1688 1668 1689
yell  470003 F I'93      1597 1570 1591 1517 1569 1434 1615
drao  475003   I'93      1667 1644 1610 1547 1639 1669 1672
rcm5  482001 F           1629 1628 1614 1580 1641 1616 1604
brmu  485001   I'93      1705 1692 1658 1655 1680 1642 1668
thu1  490001             1979 1960 1937 1850 1946 1823 1977
sant  500001 F I'93      1664 1680 1696 1624 1673 1670 1675
kour  510001   I'93      1582 1623 1580 1540 1592 1565 1596
fort  520001             1570 1552 1491 1502 1572 1551 1586
areq  530002             1620 1608 1620 1491 1536 1634 1606
bogt  540001             1584 1128 1380 1560 1639 1617 1567
braz  550001             1587 1597 1594 1525 1579 1578 1578
lpgs  564301                0  396 1613 1579 1303  939  879
hart  600001 F I'93       610  846  618  582  579  700  853
mas1  610101 F           1366 1356 1091  971 1278 1337 1322
kokb  700001 F I'93      1766 1766 1714 1649 1751 1767 1761
pama  710001   I'93      1441 1460 1341 1336 1273 1391 1432
eisl  720001             1616 1642 1642 1569 1623 1620 1622
guam  730001             1542 1542 1488 1429 1540 1530 1537
mcm4  800201             1693 1667 1618 1588 1687 1623 1641
dav1  810001             1479 1007  678  792  538 1371  328
cas1  820001             1461 1462 1477 1459 1515 1473 1444
kerg  850001             1658 1656 1607 1569 1638 1200    0
Note: F    - indicates a constrained fiducial site ( to 1-2 mm )
      I'93 - indicates that initial station coordinates are from ITRF'93

SATELLITE STATISTICS

                OBSERVATIONS for DAY (32-hour arcs used)

PRN     253  254  255  256  257  258  259
------------------------------------------
  1    3141 3107 3134 3121 3128 2963 2786
  2    2893 2808 2846 2858 2890 2762 2516
  4    2945 2939 2913 2997 2963 2910 2931
  5    3114 3050 3031 3021 3072 2942 2880
  6    2926 2966 2979 3021 2883 2829 2837
  7    2957 2816 2820 2885 2886 2684 2722
  9    2927 2881 2894 2869 2863 2730 2631
 12    2129 2005 2043 2050 2022 2038 1886
 14    3081 3039 3006 3088 2988 2967 2920
 15    2702 2760 2815 2791 2676 2661 2612
 16    2928 2999 3011 3026 3062 2866 2849
 17    3032 2979 2992 3066 2981 2861 2853
 18    3032 3009 3032 3162 3105 3001 2965
 19    3073 3074 3079 3110 3037 2981 2918
 20    3272 3169 3231 3288 3248 3034 3005
 21    2839 2838 2863 2888 2778 2578 2463
 22    3600 3625 3615 3656 3533 3463 3422
 23    2837 2745 2750 2795 2731 2600 2541
 24    3108 3040 3088 3027 3087 3004 3050
 25    3711 3666 3717 3764 3556 3204 3474
 26    2677 2648 2700 2773 2747 2516 2357
 27    2975 2956 2358    0 3059 2968 2785
 28    3199 3220 3129 3247 3203 3103 3072
 29    2963 3063 3126 3107 2997 3036 2920
 31    2926 2992 2995 3040 2950 2860 2855
-----------------------------------------

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

[Mailed From: [email-masked] (Thomas Mr. igs)]