Subject: [IGEXMail-0449] Wk 1002 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 20 Aug 1999 19:11:25

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IGEX Electronic Mail    20-Aug-1999 19:11:25                   Message No 0449
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Author: Da Kuang <[email-masked]>
Subject: Wk 1002 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 1002 (DATE 99MAR21 TO 99MAR27)
*****************************************************************************
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:
              jpx1002n.sp3 -- 24 hours ephemerids files of the solution;
              jpx10027.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:
	99mar21:  REFCLOCK  = 'IRKZ'
	99mar22:  REFCLOCK  = 'OS0G'
	99mar23:  REFCLOCK  = 'OS0G'
	99mar24:  REFCLOCK  = 'OS0G'
	99mar25:  REFCLOCK  = 'IRKZ'
	99mar26:  REFCLOCK  = 'IRKZ'
	99mar27:  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  99mar21 99mar22 99mar23 99mar24 99mar25 99mar26 99mar27
------------------------------------------------------------
01	 21	 10	 22	  7	 17	 14	
03	 26	  9	 23	 20	 15	 10	
04	 22	  7	 20	 15	 17	 18	
06	 17	  4	 17	 19	 20	 25	
07	 21	 10	 10	 13	 23	 16	
08	 74	 13	 18	 16	 26	 21	
09	 17	  7	 19	 21	 19	 50	
10	109	416	281	525	298	 53	
11	 23	 15	 17	  7	 11	 25	
13	 14	  6	 84	 28	 32	 26	
16	 13	 15	 15	 15	 17	 55	
17	 13	  8	 27	 31	 21	 28	
20	 11	  9	 18	 28	 35	 15	
22	 15	 16	 23	 18	 36	 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     10     8     8     7     3    13 
BORG  RRRRRRR     14    10    20    13     4    23 
BRUG  RNNNRRR     26     9    22     8    12    32 
CSIR  NNNRNNN      0     0     0     0     0     0 
DLFT  FFFFFFF      4     2     5     2     0     7 
DLRA  RRRRRRR     32    20    36    14    11    49 
GATR  GNNNNNN      0     0     0     0     0     0 
GODZ  FFFFFFF      3     5     3     4     0     5 
GRAB  GGFGGNN      2     1     2     1     0     3 
HERP  NNNNNRR     22     7    29     7     1    37 
IRKZ  FGGGFFF      1     2     5     1     1     5 
KHAB  GNNNNNN      0     0     0     0     0     0 
KR0G  FFFGGGG      2     1     3     2     1     4 
LDS1  RRRRGGG     73     4   100     6     5   124 
LDS2  GGGGGGG     10     2    12     2     1    16 
LINR  RRRRRRR    713   249   141   149   308   687 
LRBA  GGGNNNN      3     5     2     5     0     4 
MDOA  FFFFFFF      3     8     4     2     0    10 
MDVZ  FFGGGFF      5     2     2     5     2     3 
METZ  GGFFFFF      3     2     3     2     1     4 
MTKA  FFFFFFF      1     4     1     3     2     1 
NKLG  FFFFGGG     10     4     0     5     0     9 
NPLC  RRRRNNN     14    19    19    19     9    22 
NTZ3  GGGGGGG      2     1     4     1     0     5 
OS0G  FFFFFFF      3     1     4     0     0     5 
SL1X  FFFFFFF      2     2     1     2     0     2 
STRR  NFFFGGG      9     8     4     6     3    12 
SUNM  FFFFGGG     19     9    11     3     1    24 
TSKA  FFFGGGG      3     4     3     3     4     4 
VSLD  NRRRRRR     31    16     8    18    19    24 
WTZZ  FFFFFFF      2     2     4     2     0     5 
YARR  GGGGGGG      3     6     3     3     1     7 
ZIMJ  FFFFGGN      2     2     1     2     2     2 
ZIMZ  GFFFGGN      2     1     1     1     2     1 
--