Subject: [IGEXMail-0451] Wk 1004 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 20 Aug 1999 19:17:32

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IGEX Electronic Mail    20-Aug-1999 19:17:32                   Message No 0451
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Author: Da Kuang <[email-masked]>
Subject: Wk 1004 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 1004 (DATE 99APR04 TO 99APR10)
*****************************************************************************
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:
              jpx1004n.sp3 -- 24 hours ephemerids files of the solution;
              jpx10047.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 and tropospheric delay to the solution 
      of step 1, also solved are position and tropospheric delay of the 
      stations that track GLONASS only, receiver clock bias between GPS and 
      GLONASS tracking. 
 - 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:
	99apr04:  REFCLOCK  = 'IRKZ'
	99apr05:  REFCLOCK  = 'IRKZ'
	99apr06:  REFCLOCK  = 'IRKZ'
	99apr07:  REFCLOCK  = 'IRKZ'
	99apr08:  REFCLOCK  = 'IRKZ'
	99apr09:  REFCLOCK  = 'IRKZ'
	99apr10:  REFCLOCK  = 'IRKZ'
 
------------------------------------------------------------------------
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  99apr04 99apr05 99apr06 99apr07 99apr08 99apr09 99apr10
------------------------------------------------------------
01	  4	 10	  7	 14	  8	  8	
03	---	---	---	138	 91	 20	
04	 11	  8	  6	  7	 16	 11	
06	 11	  9	 15	  4	  4	 33	
07	  3	  6	  7	  5	  4	 16	
08	 14	  7	 43	 30	 12	 65	
09	 17	  6	  5	 12	  5	 10	
10	380	169	172	264	1856	2559	
11	  5	  5	 11	 12	  3	 11	
13	  5	  6	  3	 10	  9	  9	
16	 10	 11	 10	 21	 16	 17	
17	 23	 16	 10	  7	  8	  8	
20	  4	  7	 21	  7	  7	 34	
22	  8	  4	 21	  7	  7	  7	
 
------------------------------------------------------------------------
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  RRRRRNN     14    34    26     7     3    45 
BIPD  RRNNNRR     20    11    30    10     3    36 
BORG  RRRRRRR     13     2    16     5     2    20 
BRUG  RRRRNNN     71    34    48    33    28    82 
CSIR  NRRRRRN    190   384   197   323   194   283 
DLFT  FFFFFGG      1     1     1     1     0     2 
DLRA  RRRRRRR      8    34     8    35     2    10 
GATR  GNNNNNN      0     0     0     0     0     0 
GODZ  FFFFGGG      5     5     5     4     1     8 
GRAB  FFGGGFG      1     1     1     1     1     1 
HERP  NNNRRRR      3     4     2     4     3     2 
IRKZ  FFFFFFF      2     1     1     1     0     2 
KR0G  GGGGGGG      1     0     3     1     0     3 
LDS1  GRRRRRR     60     4    84     3     0   104 
LDS2  GGGGGGG     21    11    31    11     3    37 
LINR  RRNNNRN     34    26     8    11    27    32 
MDOA  GNNNNNN      0     0     0     0     0     0 
MDVZ  FFFFFFF      2     2     2     1     1     3 
METZ  RRFFFFF      1     1     5     1     1     5 
MTKA  FFFFFFF      1     3     2     2     0     3 
NKLG  NNNFFFG      6     3     2     4     2     5 
NPLC  RRRNNNN     18     3    26     3     2    32 
NTZ3  GGGGGGG      1     0     1     0     0     1 
OS0G  FFFFFFF      1     1     2     1     0     3 
REUN  GFGGNNN      2     2     1     2     0     3 
SL1X  GGGFFFF      3     6     4     2     1     8 
STRR  FFFFFFF      5     3     4     0     1     7 
SUNM  GNNNNNN      0     0     0     0     0     0 
TSKA  FFFFGGG      1     1     1     1     1     2 
VSLD  NNNRRNN      7     1     3     0     3     7 
WTZZ  FFFFFFF      1     1     2     1     0     3 
YARR  FFFGGNN      5     5     2     7     0     3 
ZIMJ  GNNNNNN      0     0     0     0     0     0 
ZIMZ  FFFFFFF      1     0     2     1     0     2 
--