[IGSREPORT-229] GFZ Analysis Report (week 690)

G. G.
Tue Apr 20 16:29:10 PDT 1993


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IGS Electronic Report     20-APR-1993 16:29:10       Message Number 229
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From: G. Dick
Subj: GFZ Analysis Report (week 690)
------------------------------------

******************************************************************************
GFZ ANALYSIS REPORT    GPS-WEEK 0690 (DAYS 87-93, DATES 28-03-93 TO 03-04-93)
******************************************************************************

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:
______________________________________________________________________________
gfz06907.sum           this text file
gfz06907.erp           Earth rotation parameters
gfz0690[0-6].eph       Daily orbit ephemerides , SP1 format
______________________________________________________________________________


ERP RESULT


  MJD        X        Y      UT1-IAT     XSIG    YSIG                   STA SAT
           arcsec   arcsec     sec      arcsec  arcsec
49074.500  0.12335  0.17671 -27.168197  0.00003 0.00003  0.0 0. 0. 0. 0. 21 22
49075.500  0.12031  0.17532 -27.170951  0.00003 0.00003  0.0 0. 0. 0. 0. 22 22
49076.500  0.11722  0.17355 -27.173705  0.00003 0.00003  0.0 0. 0. 0. 0. 21 22
49077.500  0.11459  0.17249 -27.176459  0.00003 0.00003  0.0 0. 0. 0. 0. 22 22
49078.500  0.11223  0.17169 -27.179213  0.00003 0.00003  0.0 0. 0. 0. 0. 22 22
49079.500  0.10983  0.17123 -27.183167  0.00003 0.00003  0.0 0. 0. 0. 0. 22 22
49080.500  0.10676  0.17083 -27.188321  0.00003 0.00003  0.0 0. 0. 0. 0. 21 22
-------------------------------------------------------------------------------


  MJD          LODR    +/-
             (ms/day)

49074.5000    2.5095  0.003
49075.5000    2.5630  0.003
49076.5000    2.4065  0.003
49077.5000    2.5644  0.004
49078.5000    2.6001  0.003
49079.5000    2.5839  0.003
49080.5000    2.5661  0.004
-----------------------------

REMARK:

With the message gfz06887.sum we have started to send our estimated LODR values.
The values for days 59 - 64 were missing in this message because of error. The
following table includes missing results.


  MJD          LODR    +/-
             (ms/day)

49046.5000    2.4688  0.004
49047.5000    2.4622  0.004
49048.5000    2.4092  0.004
49049.5000    2.3745  0.004
49050.5000    2.4680  0.004
49051.5000    2.4391  0.004
----------------------------


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)

--------------------------------------------------------------------------
DAY MEAN  1  2  3 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
--------------------------------------------------------------------------
087  37  58 77 11 20 16 10 38 23 25 25 56 41 36 33 28 18 14 41 33 25 37 63
088  32  50 31 20 11 16 10 27 16 24 29 49 50 29 31 29 16 16 26 29 39 41 54
089  31  44 46 27 13 14 21 27 19 22 28 46 47 17 35 25 31 24 12 38 26 27 47
090  35  43 46 16 28 18 22 28 14 34 24 54 59 35 23 22 29 26 19 61 38 27 51
091  32  40 48 23 24 23 19 23 30 22 16 56167 25 20 22  9 12 32 47 29 47 44
092  34  50 42 19 11 15 15 30 16 25 16 51 50 23 30 38 29 14 30 63 25 43 51
093  35  54 34 20 26 11 20 24 20 24 31 22 67 26 53 28 32 14 23 56 43 33 34
--------------------------------------------------------------------------



STATIONS USED BY GFZ INCLUDING STATISTICS

Sampling rate: 4 minutes

 IGS  INTERNAL         OBSERVATIONS for DAY
 CODE  STA#        87   88   89   90   91   92   93
----------------------------------------------------
kosg  110001      2227 2274 2280 2278 2277 2239 2187
madr  120001      2114 1687 1583 2168 2017 2027 1381
mate  130001      1495 2016 2101 2137 2146 2160 2127
trom  150001      2488 2535 2399 2484 2493 2481 2449
wetb  160001      2162 1976 2137 2052 2175 2195 1624
usud  200001      2148 2272 2278 2296 2288 2277 2253
taiw  220001         0 2146 2179 2177 2172 2122 1305
tidb  305001      2270 1808 1638 2178 2111 2155 2223
yar1  310001      2303 2376 2373 2363 2376 2379 2346
algo  400001      2202 2193 1973 1881 2046 2218 2220
stjo  405001      2177 2202 2211 2149 2212 2211 2217
gold  410001      2032 1971 1572 1561 2032 2103 2064
jplm  415001      2114 2119 2096 2136 2181 1941 2183
fair  420001      2086 2115 2103 2122 2119 2115 2113
yell  470001      2212 2242 2230 2192 2233 2266 2259
rcm2  480001      1374  375    0 1076 2066 2168 2203
sant  500001      1898 1856 1829 1854 1991 2010 1937
hart  600001      1859 1877 1861 1484 1911 1903 1910
masp  610001      2199 2282 2291 2281 2306 1782 2275
kokb  700001      2307 2315 2313 2317 2325 2285 2247
pama  710001      2229 2199 2220 2228 2237 1658    0
mcmu  800001      2625 2598 2622 2574 2614 2597 2519
----------------------------------------------------



SATELLITES STATISTICS

                OBSERVATIONS for DAY
PRN      87   88   89   90   91   92   93
------------------------------------------
  1    1948 1961 1953 1922 2080 1998 1934
  2    1903 1881 1816 1919 2007 2017 1858
  3    2202 2183 2029 2109 2250 2183 2108
 11    1950 1967 1982 2139 2101 2080 1948
 12    2047 2169 2027 1961 2171 2073 1975
 13    2669 2619 2497 2639 2806 2790 2502
 14    2148 2219 2213 2288 2376 2320 2085
 15    2054 2054 2031 2157 2116 2164 1884
 16    2034 2101 2101 2225 2288 2323 2137
 17    1917 1897 1833 1981 2101 2026 1967
 18    2147 2294 2216 2355 2320 2211 2005
 19    1754 1849 1767 1793 1957 1935 1736
 20    2135 2239 2161 2167 2320 2205 2187
 21    1885 1833 1807 1850 1985 1907 1838
 22    1833 1965 1906 1948 2108 1982 1938
 23    1912 1904 1923 1927 2120 2039 1877
 24    2519 2528 2352 2503 2713 2688 2387
 25    2027 2281 2282 2234 2409 2301 2260
 26    1960 1945 1873 1887 2052 2084 1970
 27    1871 1831 1771 1948 1987 1974 1703
 28    1756 1767 1773 1893 1909 1889 1775
 29    1850 1947 1976 2143 2152 2103 1968
------------------------------------------



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 (8 h)
   - y-bias, solar radiation scaling factor
   - ambiguities
   - STA and SV clock parameters of each observation epoch





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