Subject: [IGEXMail-0394] Wk 0995 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 25 Jun 1999 04:01:24

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IGEX Electronic Mail    25-Jun-1999 04:01:24                   Message No 0394
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Author: Da Kuang <[email-masked]>
Subject: Wk 0995 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 0995 (DATE 99JAN31 TO 99FEB06)
*****************************************************************************
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:
              jpx0995n.sp3 -- 24 hours ephemerids files of the solution;
              jpx09957.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:
	99feb01:  REFCLOCK  = 'IRKZ'
	99feb02:  REFCLOCK  = 'IRKZ'
	99feb03:  REFCLOCK  = 'IRKZ'
	99feb04:  REFCLOCK  = 'IRKZ'
	99feb05:  REFCLOCK  = 'IRKZ'
	99feb06:  REFCLOCK  = 'IRKZ'
	99jan31:  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  99jan31 99feb01 99feb02 99feb03 99feb04 99feb05 99feb06
------------------------------------------------------------
03	  4	  8	 21	  6 	 20	 16	
04	  8	 16	 26	 18 	 10	 27	
06	  8	  5	 23	 46 	 10	 20	
07	  7	  8	 17	 29 	 24	 11	
08	  2	  8	 19	 14 	 23	 15	
09	  3	  5	 14	 47 	 24	  8	
10	1840	6762	32489	40961	29602	10515	
11	  7	  9	 31	 43 	 33	 14	
13	  3	  7	 28	  4 	 33	 20	
16	  9	 13	 93	 20 	 52	 24	
17	  2	  7	 44	 10 	 13	 10	
18	---	---	---	22007	 46	  8	
20	  5	  7	 32	 14 	 13	 26	
22	  8	  9	  6	 50 	 21	  7	
 
------------------------------------------------------------------------
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  RRNNNNR     33    57    32    13     9    72 
BORG  RNNNRRR     16    69    35    67     9    42 
BRUG  NRRRRRR     14    29     8    28     7    16 
CRAR  FFGGGRG      1     2     7     2     1     7 
CSIR  RRRNRRR    902  1502   275   898   407  1474 
DLRA  RRRRNNN     11    61    11    61    11     8 
EKAT  NGGGGGN      6     6    15     3     1    17 
GATR  GGGGRRG      4    18     7     5     5    19 
GRAB  GGFFFFG      4     4     3     3     1     5 
HERP  RRRRRRR     14    15    24    15    13    24 
IRKZ  FFFFFFF      2     1     2     2     0     2 
KHAB  FFFFFFF      1     3     3     1     1     4 
KR0G  FFFFFFF      2     3     6     2     1     7 
LDS1  GGGNNGG      6     3     5     3     2     8 
LDS2  GGGGGGG     34     7    49     8     1    60 
LINR  RRNNNNN     28     0     5    14     8    23 
LRBA  FFFFFFF      2     1     3     1     0     4 
MAGD  RRRGGRR      2     2     2     1     1     3 
MDOA  RRRGGGG      4     8     4     5     3     8 
MDVZ  FFFFFFF      4     7     4     6     2     6 
METZ  FGGNNGG      6     5     9     6     2     9 
NTZ3  GGGGGGG      4     2     6     2     0     7 
OS0G  GGGFFFF      2     4     2     4     1     3 
PKST  RRRGGRR      5     2     7     1     1     9 
REUN  FFFGGNN     13     2     4     9     0    10 
STRR  FFFFFFF      4     3     3     3     1     4 
SUNM  GGGFFFF      6     3     5     2     1     8 
SVT3  RRRGGRR     15    19    21    23     5    22 
THU2  FFFFGGG      4     4     4     3     4     5 
TSKA  FFFFFFF      2     1     1     1     0     3 
WTZZ  NNNNNNG      0     0     0     0     0     0 
YAKT  GGGGGRR      5     6     2     7     1     3 
YARR  FFFFFFG      3     4     2     1     0     5 
ZIMZ  GNNNGGG      2     6     7     6     2     7