Subject: [IGEXMail-0410] Wk 0998 JPL IGEX Aanlysis Report
From: Da Kuang <[email-masked]>
Date: 13 Jul 1999 23:11:42

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IGEX Electronic Mail    13-Jul-1999 23:11:42                   Message No 0410
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Author: Da Kuang <[email-masked]>
Subject: Wk 0998 JPL IGEX Aanlysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 0998 (DATE 99FEB21 TO 99FEB27)
*****************************************************************************
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:
              jpx0998n.sp3 -- 24 hours ephemerids files of the solution;
              jpx09987.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:
	99feb21:  REFCLOCK  = 'KHAB'
	99feb22:  REFCLOCK  = 'KHAB'
	99feb23:  REFCLOCK  = 'IRKZ'
	99feb24:  REFCLOCK  = 'IRKZ'
	99feb25:  REFCLOCK  = 'IRKZ'
	99feb26:  REFCLOCK  = 'IRKZ'
	99feb27:  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  99feb21 99feb22 99feb23 99feb24 99feb25 99feb26 99feb27
------------------------------------------------------------
01	 32	 15	  7	 13	 11	 18	
03	 27	  9	 17	 11	 18	 19	
04	 19	 24	 14	  6	 22	 19	
06	 18	 34	 50	 21	 10	 27	
07	 10	  8	 21	 26	 20	 15	
08	 24	 27	 31	 45	 35	 29	
09	  8	 29	 44	  8	 27	 29	
10	 72	345	237	250	 21	677	
11	 30	 16	 13	 20	 36	 40	
13	 30	 36	 23	 28	 18	 19	
16	 19	167	 75	 21	 11	 25	
17	 23	 15	 15	 31	 14	 25	
18	 17	 29	  7	  9	 27	 43	
20	 12	 17	 13	 14	 23	 21	
22	 11	  9	 19	 14	 15	 25	
 
------------------------------------------------------------------------
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  RNNNRRN     66    69    38    85     6    59 
BIPD  NRRRRRN    249   360   207   351    62   329 
BORG  RRRRRRR     28    96    38    96    10    45 
BRUG  RRRRRRR     21    43    17    43    15    23 
CSIR  NNRRRRR   1201  1649   833  1300   767  1605 
DLFT  NNNFFFF      2     1     1     1     1     3 
DLRA  RRRRNNN      8    10     9     9     3    13 
GATR  NFFFFFF     22     5     2    21     3     6 
GRAB  FFNNNNN      0     3     3     2     1     3 
HERP  RRRRRRN     14    20    14    20     3    20 
IRKZ  NNFFFFF      5     7     3     6     3     6 
KHAB  FFFFNNN      1     4     1     2     2     3 
KR0G  FFFFFFF      3     5     1     3     4     2 
LDS1  RRNNNNN      2     6     6     6     2     6 
LINR  RRRRRRR    280   940   139   724   259   624 
LRBA  FFFFFFN      9    10     7    10     2    12 
MAGD  NNNRRRN      3     4     4     2     1     6 
MDOA  RRRRRFF    209    53     6   216     6     9 
MDVZ  FFFFFNN      2     2     2     2     0     3 
METZ  NNNNFNN      0     0     0     0     0     0 
MTKA  FFFFFFF      3     9     2     7     1     5 
OS0G  FFFFFFF      4     8     5     7     2     7 
STRR  FFFNNNN      4     6     0     3     4     5 
SUNM  FNNNNFF     24    26     5    13    11    32 
THU2  FFFFFFF      8     5     9     7     5    10 
TSKA  FFFFFFF      3     9     2     8     2     5 
VSLD  NNRRNNN      1     6     0     5     0     1 
WTZG  NRNNNNN      0     0     0     0     0     0 
WTZZ  FFFFFFN      6    10     6     8     2    10 
YAKT  RRRRRRN     13    17     3    21     4     5 
YARR  FFNNNNF      2     5     1     0     3     4 
ZIMJ  FFFFFNN      6     9     7     8     1    10 
ZIMZ  FFFFFFF      6    11     6    10     1     9