[IGSREPORT-1535] Wk 0785 GFZ Analysis Report

G.Gendt G.Gendt
Thu Feb 2 01:46:07 PST 1995


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IGS Electronic Report    Thu Feb  2  1:46:07 PST 1995      Message Number 1535
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Author: G.Gendt, G. Dick, W. Sommerfeld
Subject: Wk 0785 GFZ Analysis Report

Subject: Wk 0785 GFZ Analysis Report


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GFZ ANALYSIS REPORT   GPS-WEEK 0785 (DAYS 022-028, DATES 22-01-95 TO 28-01-95)
******************************************************************************

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: 
______________________________________________________________________________
gfz07857.sum           this text file
gfz07857.erp           Earth rotation parameters 
gfz0785[0-6].sp3       Daily orbit ephemerides , SP3 format
______________________________________________________________________________


ERP RESULT

GFZ    ERP-RESULTS for WEEK 785       DAYS   022 - 028 
_______________________________________________________________________________
  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
49739.500 -12362  46571 -28652745  2493    3    3    0    4    36 16 24
49740.500 -12189  46803 -28655359  2521    3    3    0    3    37 16 25
49741.500 -12056  47038 -28657984  2569    3    3    0    3    38 16 25
49742.500 -11915  47291 -28660605  2611    3    3    0    3    38 16 25
49743.500 -11733  47564 -28663238  2678    3    3    0    3    39 17 25
49744.500 -11672  47768 -28665827  2655    3    3    0    3    39 17 25
49745.500 -11576  47963 -28668754  2710    3    3    0    3    38 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  022    023    024    025    026    027    028
-------------------------------------------------------
 1    16     12     21     10     31     8     12  
 2    26 E   23 E   25 E   58 E   20 E   25 E   22 E
 4    23     20     22     18     22     19     20  
 5    46 E   42 E   33 E   41 E   36 E   35 E   27 E
 6    41     35     38     40     36     31     30  
 7    24     19     18     18     18     19     17  
 9    23     16     16     14     16     18     10  
12    23     16     21     14     23     14     11  
14    28     31     30     26 E   26 E   38 E   33 E
15    27     29     29     25     26     35     22  
16    50     58     49     69     51 E   36 E   46 E
17    29     30     30     36     47     34     35  
18    18     21     26     21     17     16     21  
19    27     32     31     20     20     20     14  
20    35 E   51 E   41 E   34 E   39 E   45 E   63 E
21    27     25     20 E   26 E   27 E   30 E   32 E
22    38 E   33 E   39 E   44 E   51 E   25 E   25 E
23    63     28     34     72     36 E   15 E   17 E
24    37     38     34     29     31     29     23  
25    15     15     28     25     29     40     61  
26    15     18     17     19     22     20     22  
27    37     28     42     34     34     24     23  
28    29     47     35     32     44     24     24  
29    27     18     38     25     18     21     24  
31     -      -     17     31     56     27     39  
 
MEAN  32     31     31     35     33     27     30
---------------------------------------------------

REMARKS:PRN 31 not used on day 022, no data available

                 
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#                22   23   24   25   26   27   28
----------------------------------------------------
onsa  105001   I'93         0  409 1590 1611 1649 1629 1621
kosg  110001 F I'93      1535 1175  402 1581 1442 1123  379
madr  120001 F I'93      1498 1563 1598 1615 1548 1521 1603
mate  130001 F I'93      1295 1457 1604 1659 1644 1602 1098
trom  150001 F I'93      1620 1614 1683 1694 1681 1679 1643
wetb  160001 F I'93      1589 1623 1305 1281 1651 1628 1625
pots  165001              286 1310 1647 1646 1567 1573 1642
mets  180001   I'93      1545 1548 1608 1629 1633 1608 1573
usud  200002             1624 1643 1680 1675 1685 1692 1695
tskb  205001             1619 1646 1694 1708 1716 1688 1567
taiw  220001 F            763 1595 1648 1654 1604 1608 1653
kit3  235101             1532 1556 1574 1506 1427 1507 1534
tidb  305001 F I'93      1534 1574 1521 1603 1629 1674 1691
yar1  310001 F I'93      1613 1664 1708 1711 1709 1704 1705
hob2  321001             1413 1491 1518 1584 1586 1533 1527
algo  400003 F I'93      1619 1684 1576 1687 1672 1681 1688
stjo  405002   I'93      1626 1408 1622 1535 1636 1603 1168
wes2  408001   I'93      1638 1687 1665 1659 1681 1682 1696
nlib  409001   I'93      1623 1687 1711 1694 1688 1699 1703
gold  410001 F I'93      1642 1638 1655 1662 1604 1595 1651
jplm  415002   I'93      1637 1249  433 1663 1661 1644 1690
mdo1  418001             1681 1705 1706 1707 1667 1688 1698
fair  420001 F I'93      1499 1573  750  279  711 1682 1696
yell  470003 F I'93      1632 1695 1725 1710 1665 1675 1670
drao  475002   I'93      1600 1636 1711 1715 1587 1659 1689
rcm5  482001 F           1613 1680 1686 1707 1677 1670 1678
brmu  485001   I'93      1581 1566 1428  630 1635 1546 1250
sant  500001 F I'93      1688  908  732 1692 1680 1732 1299
kour  510001   I'93      1453 1552 1565 1564 1570 1590 1532
fort  520001             1609 1601 1590 1617 1162  425 1598
areq  530002             1558 1643 1522 1698 1683 1682 1612
bogt  540001                0    0  897 1586 1591 1200    0
hart  600001 F I'93         0    0    0    0 1071 1685 1724
mas1  610101 F           1273 1345 1397 1209  519 1390 1383
kokb  700001 F I'93      1724 1758 1708 1739 1708 1723 1697
pama  710001   I'93      1190 1134 1139 1450 1377 1379 1408
dav1  810001             1395 1317 1298 1282 1392 1394 1382
cas1  820001             1387 1360 1439 1428 1366 1394 1375
kerg  850001             1442 1502 1550 1537 1589 1626 1615
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      22   23   24   25   26   27   28
------------------------------------------
  1    2130 2255 2207 2377 2197 2504 2408
  2    2451 2483 2397 2470 2446 2495 2547
  4    2545 2566 2675 2783 2851 2675 2664
  5    2361 2360 2241 2447 2476 2424 2440
  6    2276 2315 2225 2367 2415 2436 2368
  7    2688 2793 2863 2994 3063 3037 2910
  9    2047 2107 2024 2183 2184 2255 2271
 12    2385 2309 2293 2446 2427 2491 2420
 14    2334 2329 2435 2408 2483 2576 2384
 15    2379 2544 2544 2596 2596 2704 2602
 16    2260 2161 2123 2379 2265 2305 2263
 17    2218 2223 2117 2303 2326 2351 2308
 18    2329 2285 2211 2396 2560 2545 2342
 19    2248 2304 2321 2423 2447 2453 2220
 20    2148 2159 2134 2240 2301 2357 2332
 21    2208 2172 2139 2222 2187 2183 2122
 22    2025 1993 1953 2152 2235 2264 2269
 23    2231 2276 2236 2238 2255 2295 2197
 24    2430 2526 2397 2662 2873 2818 2582
 25    2365 2437 2399 2444 2562 2655 2496
 26    2209 2208 2083 2202 2300 2216 2273
 27    2271 2245 2264 2460 2474 2413 2268
 28    2226 2228 2250 2332 2431 2470 2383
 29    2341 2324 2280 2320 2435 2480 2368
 31       0 1145 2053 2364 2566 2614 2618
-----------------------------------------



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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