Subject: [IGEXMail-0450] Wk 1003 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 20 Aug 1999 19:15:30

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IGEX Electronic Mail    20-Aug-1999 19:15:30                   Message No 0450
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Author: Da Kuang <[email-masked]>
Subject: Wk 1003 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 1003 (DATE 99MAR28 TO 99APR03)
*****************************************************************************
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:
              jpx1003n.sp3 -- 24 hours ephemerids files of the solution;
              jpx10037.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:
	99apr01:  REFCLOCK  = 'IRKZ'
	99apr02:  REFCLOCK  = 'IRKZ'
	99apr03:  REFCLOCK  = 'IRKZ'
	99mar28:  REFCLOCK  = 'IRKZ'
	99mar29:  REFCLOCK  = 'IRKZ'
	99mar30:  REFCLOCK  = 'IRKZ'
	99mar31:  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  99mar28 99mar29 99mar30 99mar31 99apr01 99apr02 99apr03
------------------------------------------------------------
01	 22	 38	 28	  9	  6	 17	
03	 32	 15	 30	 34	1904	---	
04	 16	 22	 19	  7	 27	 55	
06	 11	  7	 18	  6	 12	 22	
07	  4	 18	 11	  5	 15	 24	
08	 57	 17	 79	 25	 21	 80	
09	 16	 33	 26	 22	  8	 43	
10	105	210	247	196	 25	193	
11	 24	 65	 49	 23	 19	 15	
13	 11	 25	 80	  6	 17	 80	
16	 25	 25	 46	  9	 12	 24	
17	  8	 56	 27	  7	 14	 42	
20	 31	 30	 32	 14	 55	 45	
22	 36	 11	 38	  7	 13	 31	
 
------------------------------------------------------------------------
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  NNNRRRR     21    40    11    33    15    28 
BIPD  RRNNNRR     25    70    31    69     5    41 
BORG  RRRRRRR     12     3    15     6     3    19 
BRUG  RRNNNNR     49     9    62     5     2    79 
DLFT  GGGFFFF      7     2     7     2     1    10 
DLRA  RRRNNNR     31    81    28    84    11    34 
GATR  NNNFGGG      6     1     3     6     1     3 
GODZ  GGGGGGG      3     7     5     4     0     9 
GRAB  NNFFGGG      1     1     1     1     0     2 
HERP  RNNNRNN      4     9    12     9    11     6 
IRKZ  FFFFFFF      1     2     5     1     1     6 
KR0G  FFGGGGG      5     2     9     3     1    11 
LDS1  GGNNNGG     34    10    39    10     5    52 
LDS2  GGGGGGG      5     6     6     6     2     8 
LINR  RRRRRRR     89    72    42   101     5    68 
MDOA  FFFFFGG      3     8     4     3     0     9 
MDVZ  FFGGGGG      3     1     2     2     1     3 
METZ  FFFFFFR      2     1     2     1     0     3 
MTKA  GGGFFFF      3     3     0     4     1     1 
NKLG  GGGGNNN      7     3     1     5     1     6 
NPLC  NNNNRRR     34    18    35    18     8    48 
NTZ3  GGGGGGG      4     1     4     1     1     6 
OS0G  FFFFFFF      3     1     5     1     0     6 
REUN  NNNNGGG      0    10     1     5     4     7 
SL1X  FFFFFFF      1     2     1     1     0     3 
STRR  FFFFGGG      7     3     3     5     1     7 
SUNM  FFFFFFG     19    11    12     3     0    25 
TSKA  GGGFFFF      2     2     1     1     2     1 
VSLD  RNNNNNR      9     2    11     2     0    15 
WTZZ  FFFFFFF      3     1     4     1     0     6 
YARR  FGGNNFF      1     1     1     2     1     0 
ZIMJ  GGFGGFG      1     3     1     3     1     1 
ZIMZ  GGFFFFF      2     3     3     3     0     3 
--