Subject: [IGEXMail-0386] Wk 0991 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 21 Jun 1999 23:17:12

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IGEX Electronic Mail    21-Jun-1999 23:17:12                   Message No 0386
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Author: Da Kuang <[email-masked]>
Subject: Wk 0991 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 0991 (DATE 99JAN03 TO 99JAN09)
*****************************************************************************
Submitted by: Jet Propulsion Laboratory (JPL)
              California Institute of Technology
              4800 Oak Grove Drive
              Pasadena, CA 91109, USA
              Phone: (818)-354-8332; Fax: (818)-393-4965
              [email-masked]

Submitted files:
              jpx0991n.sp3 -- 24 hours ephemerids files of the solution;
              jpx09917.sum -- this file.

-----------------------------------------------------------------------------
Solution Strategy
-----------------------------------------------------------------------------
 - Software: GIPSY/OASIS II.
 - Data:
   Undifferenced dual frequency pseudorange and carrier phase measurement. 
 - Orbit arc length:
   For each day, 72 hours of data are processed to solve for a 30-hour long
   orbit arc solution.
 - Procedures:
   1. Solve for station position, receiver clock and tropospheric delay
      from GPS data by fixing GPS orbit and transmitter clock;
   2. Solve for GLONASS orbit and transmitter clock from GLONASS data
      by fixing the station position to the solution of step 1, also
      solved are position of the stations that track GLONASS only, 
      receiver clock bias between GPS and GLONASS tracking, and 
      tropospheric delay. 
 - Parameters:
   - GPS orbit and clock: fixed to the JPL IGS/FLINN solution;
   - GLONASS orbit: 6 initial states, global solar radiation scale, Y-bias,
                    plus stochastic variation of radiation scale factor
                    in body-fixed X and Z direction, and Y-bias;
   - GLONASS clock: white noise bias at each measurement time;
   - Station position: static over the orbit solution period;
   - Tropospheric zenith delay: random walk process;
   - Receiver clock: white noise bias at each measurement time;
   - Receiver clock bias between GPS and GLONASS tracking: 
     random walk process.
 - Reference clock for GLONASS:
   Clocks of following stations, as determined in the Point Positioning 
   solution from GPS data in procedure step 1, are chosen as the reference 
   clocks:
	99jan03:  REFCLOCK  = 'KHAB'
	99jan04:  REFCLOCK  = 'IRKZ'
	99jan05:  REFCLOCK  = 'IRKZ'
	99jan06:  REFCLOCK  = 'IRKZ'
	99jan07:  REFCLOCK  = 'IRKZ'
	99jan08:  REFCLOCK  = 'IRKZ'
	99jan09:  REFCLOCK  = 'KHAB'
 
------------------------------------------------------------------------
ORBIT OVERLAP ERROR (CM)  
------------------------------------------------------------------------
 
 Orbit error is computed based on 6 hours of overlapping orbit:
 
              24 hours       3 hours
   ---|---------------------|---
                         ---|----------------------|---
                     3 hours         24 hours 
 
 3D mean rms = sqrt((rms_x**2 + rms_y**2 + rms_z**2)/3)
 
Sat  99jan03 99jan04 99jan05 99jan06 99jan07 99jan08 99jan09
------------------------------------------------------------
03	 13	 14	 12	 24	 16	 21	
04	 28	 11	 16	 37	 22	 24	
06	 12	 17	  8	 31	 13	 19	
09	 12	 10	  9	 13	  7	 20	
10	---	---	104	107	 47	243	
11	 16	 16	 13	 23	  8	  9	
13	  9	  9	  6	 39	 13	 22	
16	 28	 55	 19	 58	 18	 41	
17	 10	 16	 16	 70	 35	 22	
20	 16	 25	  9	 30	 32	 37	
22	 12	 22	  9	 29	  9	 19	
 
------------------------------------------------------------------------
STATION POSITION REPEATABILITY (MM) 
------------------------------------------------------------------------
 
In the solution of each day, a site may be a Fiducial site, 
a Regular site, or a GPS site.
  F -- Fiducial site, solved from GPS data and held fixed in GLO OD;
  R -- Regular site, solved from the GLO data with GLO OD;
  G -- GPS site, solved from GPS data, not involved in GLO OD;
  N -- Not used, either no data or data is not good;
 
Site  0123456     X     Y     Z    East  North  Vertical
--------------------------------------------------------
3SNA  RRRRRRR     96   111    91    63    11   161 
BETR  NNNNNNG      0     0     0     0     0     0 
BIPD  NNNNNRR     41     1    65     3    12    76 
BORG  RRRRRRR     45    99    69   101    20    78 
BRUG  NNRRRRR     65    12    91    10     7   112 
CRAR  RRRFFFF      8    10    32    11     2    33 
CSIR  RRRRRRR    246   181   523   263   527   144 
GATR  GGRRRRR      3    28    15     5     5    31 
GODZ  GGGGFFN      8    36    27     2     2    46 
GRAB  GGFFFFG     40    15    43     5     4    61 
HERP  RRRRRRR     76     6    99     6     7   125 
IRKZ  GFFFFFF      1     4     4     1     1     6 
KHAB  FFFFFFF      3     3     3     2     1     5 
KR0G  FFFFFFG     23    10    62     4     2    67 
LDS1  NNNRRGG    528    16   722    12     7   895 
LDS2  GGGGGGG    153    12   214     9     2   263 
LRBA  FFFFFFF     14     4    15     4     1    21 
MDOA  RRRRRRR     44   155    94     6     3   187 
MDVZ  FFFFFFF      8     3    10     3     2    13 
METZ  FFFFFGG      3     3     5     2     2     6 
MTKA  FFFFFFF     11     6     8     4     2    15 
NPLC  RRRRRRR     43    37    59    38    15    72 
NTZ3  GGGGGGG     19     7    26     4     1    33 
OS0G  FFFFFFG    149    34   238     4     2   283 
REUN  FFFFFFF     15    19     9     4     0    26 
REYZ  FFFFFFF     11     4    24     2     0    27 
STRR  FFFFFFF     12     8     9     3     2    16 
SUNM  RRRNRRR     89    25    46    45    16    92 
SVT3  NRRRRRR    100    52   195    11     2   225 
THU2  RRFFFFF      3    10    37     5     3    38 
TSKA  FFFFFFF     12    10     9     2     2    18 
USNX  NRRNNNN    390   100  1070   403   839   664 
VSLD  NRRRRRR     58    10    82     7     4   101 
YARR  FFFFFFF      4     4     3     3     1     5 
ZIMZ  FFFFFFG     13     6    14     4     1    20