[IGSREPORT-203] GFZ Analysis Report (week 688)

G. G.
Tue Apr 6 14:16:00 PDT 1993


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IGS Electronic Report      6-APR-1993 14:16:00       Message Number 203
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From: G. Dick
Subj: GFZ Analysis Report (week 688)
------------------------------------


******************************************************************************
GFZ ANALYSIS REPORT    GPS-WEEK 0688 (DAYS 73-79, DATES 14-03-93 TO 20-03-93)
******************************************************************************

Submitted by: G. Gendt, Ch. Reigber, G. Dick, Th. Nischan, W. Mai
              GeoForschungsZentrum Potsdam (GFZ)

              Telegrafenberg A17, O-1560 Potsdam, Germany
              e-mail:gend at gfz-potsdam.dbp.de
              fax: (0331) 310 648
              tel: (0331) 310 252


PRODUCT SUMMARY

FILES SENT TO CDDIS:
______________________________________________________________________________
gfz06887.sum           this text file
gfz06887.erp           Earth rotation parameters
gfz0688[0-6].eph       Daily orbit ephemerides , SP1 format
______________________________________________________________________________


ERP RESULT


  MJD        X        Y      UT1-IAT     XSIG    YSIG                   STA SAT
           arcsec   arcsec     sec      arcsec  arcsec
49060.500  0.15742  0.19603 -27.129398  0.00003 0.00003  0.0 0. 0. 0. 0. 22 22
49061.500  0.15511  0.19441 -27.132170  0.00003 0.00003  0.0 0. 0. 0. 0. 21 22
49062.500  0.15236  0.19263 -27.134942  0.00003 0.00003  0.0 0. 0. 0. 0. 21 22
49063.500  0.14987  0.19143 -27.137714  0.00003 0.00003  0.0 0. 0. 0. 0. 21 22
49064.500  0.14733  0.18983 -27.140488  0.00004 0.00003  0.0 0. 0. 0. 0. 21 22
49065.500  0.14529  0.18856 -27.143264  0.00004 0.00003  0.0 0. 0. 0. 0. 21 22
49066.500  0.14350  0.18729 -27.146040  0.00003 0.00003  0.0 0. 0. 0. 0. 21 22
-------------------------------------------------------------------------------


Starting with this message we begin to send our estimated LODR values.
The following table includes all our previous results of estimation until
week 688.

  MJD          LODR    +/-
             (ms/day)

48997.5000    2.5025  0.004
48998.5000    2.4427  0.004
48999.5000    2.3500  0.004
49000.5000    2.3755  0.004
49001.5000    2.4106  0.004
49002.5000    2.3613  0.004
49003.5000    2.4607  0.004
49004.5000    2.4207  0.004
49005.5000    2.4237  0.004
49006.5000    2.4161  0.004
49007.5000    2.4946  0.004
49008.5000    2.4585  0.004
49009.5000    2.5353  0.004
49010.5000    2.4274  0.004
49011.5000    2.4908  0.004
49012.5000    2.5474  0.004
49013.5000    2.5451  0.004
49014.5000    2.6112  0.004
49015.5000    2.5685  0.004
49016.5000    2.6099  0.004
49017.5000    2.5605  0.004
49018.5000    2.5862  0.004
49019.5000    2.6153  0.004
49020.5000    2.5864  0.004
49021.5000    2.5687  0.004
49022.5000    2.6046  0.005
49023.5000    2.6215  0.004
49024.5000    2.6798  0.004
49025.5000    2.7003  0.004
49026.5000    2.7220  0.004
49027.5000    2.6203  0.004
49028.5000    2.6393  0.004
49029.5000    2.5943  0.004
49030.5000    2.5481  0.004
49031.5000    2.4972  0.004
49032.5000    2.4724  0.004
49033.5000    2.4851  0.004
49034.5000    2.6073  0.004
49035.5000    2.6201  0.004
49036.5000    2.6035  0.004
49037.5000    2.7034  0.004
49038.5000    2.7537  0.006
49039.5000    2.7715  0.004
49040.5000    2.7334  0.004
49041.5000    2.7438  0.004
49042.5000    2.7884  0.004
49043.5000    2.6770  0.004
49044.5000    2.6620  0.007
49045.5000    2.5376  0.005
49052.5000    2.3868  0.004
49053.5000    2.4583  0.004
49054.5000    2.5244  0.003
49055.5000    2.5556  0.004
49056.5000    2.6390  0.004
49057.5000    2.6495  0.005
49058.5000    2.6850  0.003
49059.5000    2.7815  0.004
49060.5000    2.7812  0.003
49061.5000    2.7381  0.003
49062.5000    2.8108  0.003
49063.5000    2.8382  0.004
49064.5000    2.7721  0.004
49065.5000    2.7868  0.004
49066.5000    2.8212  0.003
-----------------------------



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)

-------------------------------------------------------------------------
   MEAN  1  2  3 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
-------------------------------------------------------------------------
073 38  46 43 10 16 12  9 61 14 59 16 42 52 37 63 37 48 21 10 22 20 33 68
074 33  62 42 20 17 19 11 29 20 26 22 37 36 25 44 36 32 17 15 20 26 33 67
075 35  46 57 17 21  8 13 42 25 28 27 36 27 31 37 33 28 13  8 51 49 17 68
076 34  38 54 18 15 17 11 30 14 35 20 53 54 23 38 34 46 14 11 27 28 22 68
077 36  39 47 15 10  9 11 35 18 50 20 ** 66 20 45 57 14 22  9 33 22 19 79
078 34  41 56 13 18 20 13 33 15 49 26 33 49 25 34 31 17 16 18 32 28 27 69
079 29  38 50 26 18 11 14 26 19 25 30 19 32 30 36 37 33 15 22 25 13 28 53
-------------------------------------------------------------------------

REMARK: on DAY 76 manoeuver of satellite 18

-------------------------------------------------------------------------


STATIONS USED BY GFZ INCLUDING STATISTICS

Sampling rate: 4 minutes

 IGS  INTERNAL         OBSERVATIONS for DAY
 CODE  STA#        73   74   75   76   77   78   79
----------------------------------------------------
kosg  110001      2318 2318 2318 2249 2251 2278 2275
madr  120001       431 2112 2287 2136 2213 2170 2052
mate  130001      2252 2256 2266 2167 2037 2207 2209
trom  150001      2470 2421 2460 2356 2365 2424 2402
wetb  160001       927 1589 2273 2219 2163 2239 2279
usud  200001      2276 2177 2251 2162 2152 2202 2233
taiw  220001      2255 2284 2293 2174 2042 2110 2176
tidb  305001      2306 2357 2271 2308 2075 2311 2360
yar1  310001      2330 2350 2343 2324 2199 2173 2306
algo  400001      2182 1924 1898 2046 2197 2201 2194
stjo  405001      2156 2164 2169 2014 2005 2058 2122
gold  410001      2091 1995 2040 2063 2010 1927 2029
jplm  415001      2198 2202 2201 2129 2088 2099 2125
fair  420001      1489    0  410  936 2049 2090 2134
yell  470001      2185 2254 2255 2099 2108 2105 2154
rcm2  480001      2011 2040 2031 1590 1745  851    0
sant  500001      1983 1983 1850 1798 1492 1328 1805
hart  600001      1925 1877 1839 1840 1728 1207 1878
masp  610001      2249 2273 2223 2179 2268 2281 2314
kokb  700001      2243 2150 2187 2101 2023 2172 2260
pama  710001      2148 1539    0    0    0 1987 2166
mcmu  800001      2504 2241 2095 2549 1826    0 2300
----------------------------------------------------



SATELLITES STATISTICS

                OBSERVATIONS for DAY
PRN      73   74   75   76   77   78   79
------------------------------------------
  1    2006 2022 1990 2014 2091 1937 2091
  2    2026 1930 1782 1915 1997 1906 1876
  3    2162 2006 2042 2005 1724 1677 2209
 11    1978 1897 1864 2082 1988 1904 2066
 12    2003 1983 1913 1939 1982 1976 2148
 13    2573 2570 2576 2624 2659 2624 2640
 14    2131 2238 2295 2305 2278 2203 2237
 15    1984 1995 1968 2143 2119 2028 2124
 16    2095 2094 2054 2047 1985 2016 2125
 17    1955 1844 1761 1802 1879 1771 1888
 18    2087 2210 2183  982 1500 2109 2227
 19    1709 1769 1843 1810 1827 1746 1842
 20    2217 2136 2062 2127 2181 2046 2256
 21    1942 1879 1821 1908 1867 1801 1929
 22    1947 1964 1915 1640 1048 1246 1633
 23    1858 1639 1685 1799 1710 1720 1918
 24    2356 2427 2304 2393 2327 2315 2490
 25    2150 2150 2123 2163 2177 2026 2258
 26    2054 1930 1851 1851 1878 1850 2040
 27    1856 1835 1893 1878 1839 1766 1820
 28    1834 1897 1879 1868 1887 1771 1916
 29    2006 2091 2156 2144 2093 1982 2040
------------------------------------------



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:
   - unfifferenced carrier phases
   - 32 h arc solutions

5. Adjusted parameters:
   - state vector of all satellites
   - coordinate corrections
   - daily ERPs
   - tropospheric zenith path delay (8 h)
   - y-bias, solar radiation scaling factor
   - ambiguities
   - STA and SV clock parameters of each observation epoch





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