[IGSREPORT-1625] Wk 0791 GFZ Analysis Report

G.Gendt G.Gendt
Wed Mar 15 23:46:26 PST 1995


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IGS Electronic Report    Wed Mar 15 23:46:26 PST 1995      Message Number 1625
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Author: G.Gendt, G. Dick, W. Sommerfeld
Subject: Wk 0791 GFZ Analysis Report

Subject: Wk 0791 GFZ Analysis Report


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GFZ ANALYSIS REPORT   GPS-WEEK 0791 (DAYS 064-070, DATES 05-03-95 TO 11-03-95)
******************************************************************************

Submitted by: G. Gendt, Ch. Reigber, G. Dick, Th. Nischan, W. Sommerfeld  
              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: 
______________________________________________________________________________
gfz07917.sum           this text file
gfz07917.erp           Earth rotation parameters 
gfz0791[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________


ERP RESULT

GFZ    ERP-RESULTS for WEEK 791       DAYS   064 - 070 
_______________________________________________________________________________
  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
49781.500  -4551  53694 -28763766  2934    2    2    0    3    42 16 25
49782.500  -4185  53813 -28766670  2942    2    2    0    3    43 17 25
49783.500  -3863  53969 -28769546  2893    2    3    0    3    43 17 25
49784.500  -3597  54113 -28772454  2910    2    2    0    3    43 17 25
49785.500  -3324  54231 -28775481  2963    2    2    0    3    42 17 25
49786.500  -3105  54322 -28778501  3003    2    2    0    3    43 17 25
49787.500  -2898  54413 -28781501  3004    2    2    0    3    41 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  064    065    066    067    068    069    070
-------------------------------------------------------
 1    24     29     19     35     39     27     36  
 2    27     15     15     17     19     22     18  
 4    17     24     15     16     11     11     13  
 5    17     18     18     18     18     17     17  
 6    33     38     32     33 E   30 E   28 E   42 E
 7    21 E   27 E   29 E   31 E   36 E   30 E   35 E
 9    16     13     19     13     17     15     12  
12    14     19     21     21     15     22     19  
14    28     28     23     27     32     22     23  
15    19     22     18     17     19     17     20  
16    20     23     21     21     20     18     19  
17    25     34     27     31     29     25     28  
18    36     30     26     26     27     26     26  
19    12     14     19     14     28     20     21  
20    18     21     20     27     22     19     19  
21    26     27     29     29     24     27     44  
22    14     15     16     11     16     13     15  
23    23     11      8     10     13      7    100  
24    22     19     16     18     16     13     15  
25    10     13     10      9     17     10     12  
26    30     25     30     26     27     24     26  
27     9     11     17     11     15     14     12  
28    24     23 E    - E    - E   59 E   27 E   27 E
29    27     31     26     24     29     22     31  
31    24 E   26 E   25 E   22 E   31 E   27 E   24 E
 
MEAN  22     23     22     22     26     21     31
---------------------------------------------------

REMARKS:(1) PRN28 deleted from sp3-file for day 066
            (no data)
        (2) DAY 070: PRN23 had some unidentified
                     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 (32-hour arcs used)
 CODE  STA#                64   65   66   67   68   69   70
----------------------------------------------------
onsa  105001   I'93      1587 1612 1593 1599 1637 1599 1538
kosg  110001 F I'93      1627 1613 1560 1598 1603 1575 1596
madr  120001 F I'93      1613 1627 1562 1580 1612 1603 1570
mate  130001 F I'93      1451 1526 1113 1456 1665 1665 1553
trom  150001 F I'93      1608 1670 1630 1637 1659 1667 1517
wetb  160001 F I'93      1661 1678 1628 1623 1661 1676 1677
pots  165001             1620 1658 1571 1605 1628 1667 1648
mets  180001   I'93      1599 1599 1576 1597 1632 1642 1611
usud  200002             1660 1622 1599 1647 1650 1646 1639
tskb  205001             1716 1685 1614 1342 1192 1570 1701
taiw  220001 F           1689 1636 1523 1606 1720 1719 1514
kit3  235101             1600 1594 1542 1530 1567 1608 1562
tidb  305001 F I'93      1596 1551 1554 1637 1640 1576 1567
yar1  310001 F I'93      1721 1677 1558 1525 1462 1453 1448
hob2  321001             1405 1452 1386 1576 1603  940    0
algo  400003 F I'93      1663 1711 1668 1695 1688 1700 1703
stjo  405003   I'93      1672 1733 1684 1736 1747 1729 1732
wes2  408001   I'93      1625 1684 1645 1668 1663 1667 1672
nlib  409001   I'93      1654 1691 1627 1674 1675 1690 1699
gold  410001 F I'93      1639 1559 1609 1616 1557 1423 1515
jplm  415002   I'93      1691 1721 1704 1708 1709 1724 1717
mdo1  418001             1681 1719 1664 1689 1706 1700 1706
fair  420001 F I'93      1666 1700 1597 1533 1553 1563 1498
yell  470003 F I'93      1567 1667 1613 1621 1641 1639 1606
drao  475002   I'93      1546 1633 1617 1616 1683 1697 1698
rcm5  482001 F           1641 1683 1648 1649 1660 1680 1680
brmu  485001   I'93      1549 1627 1394 1127 1510 1595 1652
sant  500001 F I'93         0  783 1628 1671 1744 1738 1725
kour  510001   I'93      1489 1631 1622 1317 1628 1612 1613
fort  520001             1584 1623 1598 1600 1594 1436 1582
areq  530002             1536  683  494 1443 1399  671    0
bogt  540001             1551 1551 1517 1582 1552 1604 1481
hart  600001 F I'93      1711 1650 1543 1584 1644 1657 1722
mas1  610101 F           1400 1431 1354 1427 1426 1418 1429
kokb  700001 F I'93      1819 1804 1729 1705 1807 1813 1784
pama  710001   I'93      1397 1426 1345 1391 1425 1392 1350
eisl  720001             1641 1729 1333 1649 1562 1685 1190
guam  730001             1559 1539 1510 1571 1581 1572 1591
mcm4  800201             1624 1645 1650 1676 1667 1643 1610
dav1  810001             1313 1285 1499 1507 1554 1574 1453
cas1  820001             1291 1258 1173 1224 1315 1311 1288
ohig  830001             1380 1417 1032 1047    0  679 1458
kerg  850001             1515 1567 1519 1481 1506 1604 1608
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      64   65   66   67   68   69   70
------------------------------------------
  1    2803 2770 2717 2710 2684 2722 2565
  2    2532 2596 2625 2619 2609 2535 2529
  4    2110 3297 3191 3272 3274 3212 3164
  5    2879 2911 2818 2956 2958 2911 2737
  6    2815 2771 2796 2680 2713 2658 2591
  7    3080 3149 3046 3058 2984 3017 2994
  9    2539 2562 2599 2595 2537 2498 2367
 12    2778 2685 2650 2620 2593 2545 2428
 14    2918 2954 2857 2964 2826 2816 2726
 15    2737 2744 2671 2704 2532 2469 2494
 16    3134 3159 3220 3305 3221 3156 3033
 17    2727 2754 2739 2764 2758 2652 2625
 18    2844 2832 2823 2906 2832 2718 2601
 19    2625 2617 2638 2708 2657 2575 2526
 20    2584 2615 2635 2590 2539 2499 2440
 21    2461 2414 2421 2417 2361 2360 2278
 22    2783 2730 2677 2728 2747 2684 2554
 23    2360 2456 2479 2356 2447 2417 2139
 24    3278 3387 3396 3412 3367 3301 3210
 25    2919 2909 2869 2900 2813 2681 2685
 26    2733 2799 2703 2724 2697 2549 2528
 27    2589 2610 2722 2704 2573 2483 2381
 28    2594 2010   99 1160 2271 2311 2287
 29    2848 2733 2758 2817 2738 2688 2619
 31    2489 2458 2439 2471 2382 2365 2402
-----------------------------------------



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: sofe at gfz-potsdam.de (Waltraud Sommerfeld)]



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