Subject: [IGEXMail-0390] Wk 0994 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 22 Jun 1999 19:36:30

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IGEX Electronic Mail    22-Jun-1999 19:36:30                   Message No 0390
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Author: Da Kuang <[email-masked]>
Subject: Wk 0994 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 0994 (DATE 99JAN24 TO 99JAN30)
*****************************************************************************
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:
              jpx0994n.sp3 -- 24 hours ephemerids files of the solution;
              jpx09947.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:
	99jan24:  REFCLOCK  = 'MDVZ'
	99jan25:  REFCLOCK  = 'IRKZ'
	99jan26:  REFCLOCK  = 'IRKZ'
	99jan27:  REFCLOCK  = 'IRKZ'
	99jan28:  REFCLOCK  = 'IRKZ'
	99jan29:  REFCLOCK  = 'IRKZ'
	99jan30:  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  99jan24 99jan25 99jan26 99jan27 99jan28 99jan29 99jan30
------------------------------------------------------------
03	 25	 18	 16	  8	 10	  8	
04	 53	 13	 18	  5	  5	  6	
06	 44	 12	 39	 13	 26	  9	
07	---	---	---	---	552	 17	
08	---	---	---	---	296	 25	
09	 32	 14	 34	 21	 13	  3	
10	151	 38	183	111	177	 18	
11	 21	 18	 64	 22	 34	 22	
13	 24	 15	 26	 13	 32	  9	
16	137	 20	 44	 17	 59	 28	
17	 38	 14	 26	 11	 12	 23	
20	 35	 19	 22	 18	 20	 18	
22	 53	 13	 18	 14	 15	 15	
 
------------------------------------------------------------------------
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     73    28    36    56     8    65 
BORG  RNRNRRR     12    88    39    85    13    43 
BRUG  RRRRRNN     24    18    17    20     6    28 
CRAR  GGGFFFF      3     2     3     3     2     3 
CSIR  RRRRRRR    260   405   104   464    94   137 
DLRA  NNNNNRR      5     1     9     0     2    10 
EKAT  GRRGGGG      1     2     3     1     0     4 
GATR  RRRRRRR      8    16    13     7     4    20 
GRAB  GFFFFFG      2     1     2     0     0     3 
HERP  RRRNRRR     14    31    18    31     9    21 
IRKZ  FFFFFFF      1     1     2     1     0     2 
KHAB  FFFFFFF      2     3     1     3     0     3 
KR0G  NNNGFFF      1     2     1     2     0     1 
LDS1  RGNNGRG     87     9   121    11     3   150 
LDS2  GGGGGGG     12     7    17     7     3    20 
LINR  NNNNNRR     11    26     4    28     5     0 
LRBA  GGGGGFF      3     0     4     0     0     5 
MAGD  RRRGGRR      2     0     4     1     2     3 
MDOA  RRRRRRR      4     2     4     4     3     4 
MDVZ  FFFFFFF      3     3     2     2     1     4 
METZ  FFFFFFF      1     1     5     1     1     5 
NTZ3  GGGGGGG      2     0     4     0     0     5 
OS0G  FFFFFFF      1     1     1     1     0     2 
PKST  RRRRRRR     11     6    12     3     3    16 
REUN  FFFFFFF      4     7     3     1     0     9 
REYZ  GNNNNNN      0     0     0     0     0     0
STRR  GGGFFFF      4     4     3     2     1     6 
SUNM  GGGFRRR      2     2     0     2     1     2 
SVT3  RRRRRRR      9     7    17     8     1    19 
THU2  GFFFFFF      3     4     5     2     3     6 
TSKA  FFFFFFF      1     2     1     2     0     1 
YAKT  RRRRRRR      2     2     2     3     0     2 
YARR  FGNGFFF      0     4     1     2     1     4 
ZIMZ  FGGGFFG      1     1     2     1     0     2