Subject: [IGEXMail-0416] Wk 1001 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 19 Jul 1999 22:13:01

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IGEX Electronic Mail    19-Jul-1999 22:13:01                   Message No 0416
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Author: Da Kuang <[email-masked]>
Subject: Wk 1001 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 1001 (DATE 99MAR14 TO 99MAR20)
*****************************************************************************
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:
              jpx1001n.sp3 -- 24 hours ephemerids files of the solution;
              jpx10017.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:
	99mar14:  REFCLOCK  = 'IRKZ'
	99mar15:  REFCLOCK  = 'KHAB'
	99mar16:  REFCLOCK  = 'KHAB'
	99mar17:  REFCLOCK  = 'KHAB'
	99mar18:  REFCLOCK  = 'IRKZ'
	99mar19:  REFCLOCK  = 'IRKZ'
	99mar20:  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  99mar14 99mar15 99mar16 99mar17 99mar18 99mar19 99mar20
------------------------------------------------------------
01	  9	  5	  9	 12	 11	 20	
03	  9	 10	 15	  8	 12	 14	
04	 18	  7	 10	 16	  4	  6	
06	 30	  7	  9	  9	  7	 13	
07	  9	  9	 13	 25	  6	 36	
08	 39	 12	 12	 28	 25	 30	
09	 17	  8	  8	 29	 16	 15	
10	227	226	157	139	406	242	
11	 16	 18	 27	 21	  8	 10	
13	 10	  9	 28	 21	 18	 11	
16	 28	 17	 11	 29	 31	 22	
17	  8	 14	 10	 29	 13	  9	
20	  9	 26	 26	 27	  7	 15	
22	 16	 18	 18	 12	 18	 17	
 
------------------------------------------------------------------------
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  NRRRRNN     10    12    14    11     6    17 
BIPD  RRRRRRN     26    34    11    34    17    23 
BORG  RRRRRRR     10     3    10     5     2    14 
BRUG  RRRRRRR     13    13    11    13     5    17 
CSIR  RRRRRRR    232   241    77   293    70   164 
DLFT  FFFFFFF      4     1     5     1     0     6 
DLRA  RRNNNRR     24    18    28    20     4    36 
GATR  FFFFFFN      2     3     2     2     0     3 
GODZ  NNNNNFF      2     3     0     1     2     2 
GRAB  NNFFFNN      2     0     1     0     0     2 
HERP  RRRRRNN      8    11    18    11     7    18 
IRKZ  FNNNFFF      1     3     4     1     0     5 
KHAB  FFFFFFN      4     3     4     1     1     7 
LDS1  RRNNNRR      7     3    13     3     1    15 
LINR  RRRRRRR     91    44    35    78    19    71 
LRBA  FFFFNNN      4     0     3     0     0     5 
MDOA  FFFFFFF      1     7     5     2     1     8 
MDVZ  FNNNFFF      3     1     4     0     0     5 
METZ  NFFFFNN      2     2     5     2     0     6 
MTKA  NFFFFFF      2     3     2     1     0     5 
NKLG  NNFFFFF     24    14     4    15     4    24 
OS0G  NNNFNNN      0     0     0     0     0     0 
SL1X  FFFNNNF      1     3     2     2     0     3 
STRR  FFFFNNN      2     3     2     4     1     2 
SUNM  NFRNNNF      1    10     0     9     1     4 
TSKA  FFFFFFF      1     2     1     1     1     2 
WTZZ  FFFFFFF      5     0     5     0     0     7 
YARR  FFFFFFF      4     6     2     6     0     5 
ZIMJ  FFFFFFF      4     0     4     0     0     6 
ZIMZ  FFFFFNN      4     0     5     0     0     6