Subject: [IGEXMail-0411] Wk 0999 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 13 Jul 1999 23:13:56

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IGEX Electronic Mail    13-Jul-1999 23:13:56                   Message No 0411
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Author: Da Kuang <[email-masked]>
Subject: Wk 0999 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 0999 (DATE 99FEB28 TO 99MAR06)
*****************************************************************************
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:
              jpx0999n.sp3 -- 24 hours ephemerids files of the solution;
              jpx09997.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:
	99feb28:  REFCLOCK  = 'IRKZ'
	99mar01:  REFCLOCK  = 'IRKZ'
	99mar02:  REFCLOCK  = 'IRKZ'
	99mar03:  REFCLOCK  = 'IRKZ'
	99mar04:  REFCLOCK  = 'IRKZ'
	99mar05:  REFCLOCK  = 'IRKZ'
	99mar06:  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  99feb28 99mar01 99mar02 99mar03 99mar04 99mar05 99mar06
------------------------------------------------------------
01	 14	  9	  3	 10	 18	 17	
03	 15	  6	  6	 19	 24	  7	
04	 10	  7	  6	 36	 21	  9	
06	 15	 11	  9	 48	 35	 10	
07	 21	 11	  3	 24	 21	  5	
08	 80	 31	  8	 50	 41	 15	
09	 26	 13	  9	 33	109	 16	
10	280	 69	 85	441	263	112	
11	 11	 10	  5	 16	 17	 15	
13	 25	 20	 12	 29	 15	  8	
16	 39	 14	 22	 42	 65	 22	
17	 42	 16	  6	 23	 36	 10	
18	 11	 12	 15	 32	 21	 32	
20	 92	---	---	800	 58	 13	
22	 31	 16	  4	 21	 33	 22	
 
------------------------------------------------------------------------
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
--------------------------------------------------------
BIPD  NNRRRRR     28   112    32   112     6    42 
BORG  NRRRRRR     24   134    28   135     7    32 
BRUG  NNNRRRR     32    11    15    10    15    32 
CSIR  RRRRNNN    158   391   205   350   128   285 
DLFT  FNNNNFF      3     2     7     2     2     7 
DLRA  RRRRRRR     14     6    17     4     3    22 
GATR  FNNNNNN      0     0     0     0     0     0 
GRAB  NNFFNNN      0     0     0     0     0     0 
HERP  NRRRNNN      8     1     5     1     3     9 
IRKZ  FFFFFFF      2     2     3     1     0     4 
KHAB  FFFFNNN      3     1     2     2     0     3 
KR0G  FFFFFFF      2     1     7     1     1     7 
LDS1  NNNNNRR      3     2     3     2     0     4 
LINR  RRRRNRR    446   687    50   807    77   126 
LRBA  NNFFNNN      0     0     0     0     0     0 
MAGD  NNNNNRR      0     0     1     1     0     1 
MDOA  FNNNNFF      2     3     2     1     0     4 
METZ  NFFFNNN      0     2     0     1     1     0 
MTKA  FFFFFFF      3     5     3     2     0     6 
NKLG  NNNNNFN      0     0     0     0     0     0 
OS0G  FFFFFFF      5     2     8     1     0    10 
SL1X  NFFFFFF      5     3     2     4     1     4 
STRR  FFFFNNN      2     2     2     1     0     3 
SUNM  FFNNNNN      2     0     1     0     0     2 
THU2  FFFFFFF      3     2     6     3     2     6 
TSKA  FFFFFFF      2     2     2     1     0     3 
VSLD  RRRRNNN      7     2    10     3     0    12 
WTZZ  NNFFFFF      6     2     7     0     0     9 
YARR  FFFFNNN      2     2     0     1     1     3 
ZIMJ  NNNNNFF      1     0     0     0     0     1 
ZIMZ  FFFFFFF      4     1     6     1     0     7