[IGSREPORT-179] GFZ Analysis Report (week 687)

G. G.
Fri Mar 19 10:25:03 PST 1993


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IGS Electronic Report     19-MAR-1993 10:25:03       Message Number 179
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From:	G. Gendt	
Subj:	GFZ Analysis Report (week 687)
--------------------------------------




******************************************************************************
GFZ ANALYSIS REPORT    GPS-WEEK 0687 (DAYS 65-72, DATES 07-03-93 TO 13-03-93)
******************************************************************************

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:
______________________________________________________________________________
gfz06877.sum           this text file
gfz06877.erp           Earth rotation parameters
gfz0687[0-6].eph       Daily orbit ephemerides , SP1 format
______________________________________________________________________________


ERP RESULT


  MJD        X        Y      UT1-IAT     XSIG    YSIG                   STA SAT
           arcsec   arcsec     sec      arcsec  arcsec
49053.500  0.16492  0.20662 -27.109102  0.00003 0.00003  0.0 0. 0. 0. 0. 22 21
49054.500  0.16345  0.20491 -27.112775  0.00003 0.00003  0.0 0. 0. 0. 0. 22 21
49055.500  0.16203  0.20298 -27.115545  0.00003 0.00003  0.0 0. 0. 0. 0. 21 21
49056.500  0.16139  0.20125 -27.118315  0.00005 0.00004  0.0 0. 0. 0. 0. 21 21
49057.500  0.16105  0.19990 -27.121085  0.00006 0.00005  0.0 0. 0. 0. 0. 22 21
49058.500  0.16068  0.19849 -27.123855  0.00003 0.00003  0.0 0. 0. 0. 0. 22 22
49059.500  0.15919  0.19713 -27.126626  0.00003 0.00003  0.0 0. 0. 0. 0. 20 22
-------------------------------------------------------------------------------



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
-------------------------------------------------------------------------
066 43  36 46 30 40 33 18128 48 60 28 46 50 49 43  0 50 23 51 24 16 37 77
067 40  47 55 29 36 44 19 42 33 52 29 33 38 38 28  0 64 18 58 23 16 16 68
068 31  35 38 16 26 17 18 33 25 53 26 30 41 25 29  0 33 21 38 19 23 16 56
069 36  38 47 14 37 14 11 40 27 35 30 42 45 29 34  0 44 29 56 21 22 18 65
070 30  38 28 25 25 14 22 31 27 17 23 21 24 25 68  0 32 18 46 17 18 23 45
071 42  37 34 49 51 19 20 53 49 46 38 37 56 32 40  0 23 32 25 62 34 47 55
072 33  32 25 23 17 12 15 31 19 46 31 40 54 26 49 39 53 17 15 29 27 20 53
-------------------------------------------------------------------------

REMARK: data from satellite 22 are not used until day 71

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


STATIONS USED BY GFZ INCLUDING STATISTICS

Sampling rate: 4 minutes

 IGS  INTERNAL         OBSERVATIONS for DAY
 CODE  STA#        66   67   68   69   70   71   72
----------------------------------------------------
kosg  110001      2214 2215 2220 2236 2236 2305 2317
madr  120001      2104 2116 2141 1852  552 1644 1352
mate  130001      2053 1893 1991 2173 2159 2226 2228
trom  150001      2341 2358 2387 2371 2354 2479 2482
wetb  160001      2158 2190 2126 2124 1378  384  580
usud  200001      1982 2041 1625 2124 2146 2295 2314
taiw  220001      1634 2038 1977 1935 1968 2023 2233
tidb  305001      2109 2126 2148 1954  618 1791 2328
yar1  310001      1453 2076 2196 2188 2183 2312 2334
algo  400001      2131 2105 2102 1876 2063 1706    0
stjo  405001      2016 2066 2066 2074 2030 2078 2173
gold  410001      1925 1893 1942 1688  432 1719 1625
jplm  415001      2013 2024 1228    0  958 2192 2212
fair  420001      2019 2081 1970 1777 1907 2050 1926
yell  470001      2179 2180 2161 2153 2151 2251 2184
rcm2  480001      2004 2088 1822 2081 2079 2031 1746
sant  500001      1927 1939 1886 2038 1995 2036 1902
hart  600001      1726 1810 1813 1842 1820 1952 1962
masp  610001      2073 2073 2079 2129 2143 2216 2245
kokb  700001      2151 2142 2102 2184 2194 2252 2209
pama  710001      2105 1586    0 2097 2075 1646    0
mcmu  800001      2471 2504 2458 2479 2443 2592 2551
----------------------------------------------------



SATELLITES STATISTICS

                OBSERVATIONS for DAY
PRN      66   67   68   69   70   71   72
------------------------------------------
  1    2135 2150 1988 2126 1849 1964 1882
  2    2095 2127 2015 1988 1910 2097 1818
  3    2128 2188 2004 2058 1908 1988 2009
 11    2229 2203 2128 2033 1812 2018 1861
 12    1969 2091 1933 1976 1928 1943 1786
 13    2688 2770 2647 2607 2453 2496 2250
 14    2296 2412 2280 2353 2060 2165 2006
 15    2338 2254 2142 2242 2011 2102 1854
 16    2081 2132 1970 2043 1955 1999 1777
 17    1852 1857 1764 1867 1691 1821 1799
 18    2268 2323 2072 2169 2000 2098 1862
 19    1853 1858 1712 1730 1619 1789 1523
 20    2210 2245 2040 2052 1913 1972 2044
 21    2049 2040 1944 2005 1713 1897 1811
 22       0    0    0    0    0 1828 1848
 23    2025 1975 1837 1908 1598 1767 1676
 24    2255 2507 2231 2269 2326 2285 2011
 25    2239 2223 2094 2164 2031 2113 2033
 26    2049 2045 1890 1980 1800 2013 1775
 27    1787 1902 1768 1724 1691 1905 1707
 28    2065 2037 1942 1923 1718 1868 1711
 29    2177 2205 2039 2158 1898 2052 1860
------------------------------------------



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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