Subject: [IGEXMail-0388] Wk 0993 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 21 Jun 1999 23:26:22

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IGEX Electronic Mail    21-Jun-1999 23:26:22                   Message No 0388
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Author: Da Kuang <[email-masked]>
Subject: Wk 0993 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 0993 (DATE 99JAN17 TO 99JAN23)
*****************************************************************************
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:
              jpx0993n.sp3 -- 24 hours ephemerids files of the solution;
              jpx09937.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:
	99jan17:  REFCLOCK  = 'LRBA'
	99jan18:  REFCLOCK  = 'KHAB'
	99jan19:  REFCLOCK  = 'KHAB'
	99jan20:  REFCLOCK  = 'IRKZ'
	99jan21:  REFCLOCK  = 'IRKZ'
	99jan22:  REFCLOCK  = 'KHAB'
	99jan23:  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  99jan17 99jan18 99jan19 99jan20 99jan21 99jan22 99jan23
------------------------------------------------------------
03	 27	  9	 11	 13	 13	  8	
04	 56	  7	  8	 14	  7	  6	
06	 45	 18	 19	 24	  5	  7	
09	 37	  8	 19	 26	  7	  5	
10	288	287	 36	 72	163	 60	
11	  6	 10	 20	 21	 16	  8	
13	 30	  7	 15	 12	  9	  6	
16	 40	 35	 23	105	 31	 15	
17	 55	  6	 14	 12	 11	  6	
20	  7	 17	 16	 42	 18	  5	
22	 24	 14	  7	 12	 12	 13	
 
------------------------------------------------------------------------
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     78    71    83    41    36   123 
BETR  GGGGNNN      1    11     6     5     0    11 
BORG  RRRRRRR     40   106    60    96    27    81 
BRUG  RRRRRRR     15    45    10    44    12    15 
CRAR  FFFFFFF      1     4     3     4     2     3 
CSIR  RNNNNRR    497    42    94   205   113   450 
EKAT  NNNNRRR      0     1     0     0     0     1 
GATR  RRRRRRR      5     8     7     4     4    10 
GRAB  FFFFFFF      2     1     1     1     1     3 
HERP  RRRRRRR     22    84    85    84    46    74 
IRKZ  FFFFFFF      1     1     2     1     1     2 
KHAB  GFFFFFF      0     1     1     1     1     1 
KR0G  FFFNFFF      1     1     0     0     1     0 
LDS1  RRNNNNR     40     7    52     8     1    66 
LDS2  GGGGGGG     10     2    15     2     1    18 
LINR  RRNRRRR     95    76    51    94     9    92 
LRBA  FFFFFFF      1     1     2     1     0     2 
MAGD  RRRRRRR      8     7     6    10     1     7 
MDOA  RRRRRRR      3    20    11     4     3    22 
MDVZ  FGGGGGF      3     1     5     2     1     5 
METZ  FFFNFFF      1     2     2     2     1     3 
NTZ3  GGGGGGG      1     1     1     1     0     2 
OS0G  FFFNFFF      2     2     3     2     0     4 
PKST  GRRFFFF     25     6    33     3     1    42 
REUN  GFFFFFF      2     5     1     3     0     5 
REYZ  FFFFFFF      1     3     5     3     1     5 
STRR  NFFFFFF      1     3     0     3     0     1 
SUNM  FFFFFFR      6     5     1     7     0     3 
SVT3  RRRRRRR      5    12    13    11     1    14 
THU2  FFFFFFF      1     1     6     1     3     6 
TSKA  GGFFFFF      2     1     2     0     0     3 
VSLD  RRRNNNN     11     5    12     4     2    17 
WTZG  NRNNNNN      0     0     0     0     0     0 
YAKT  RRRRRRR      1     0     2     1     1     2 
YARR  FFFFFFF      2     5     1     3     1     4 
ZIMZ  FFFFNFF      2     3     0     3     1     2