Subject: [IGEXMail-0398] Wk 0997 JPL IGEX Analysis Report
From: Da Kuang <[email-masked]>
Date: 30 Jun 1999 01:58:38

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IGEX Electronic Mail    30-Jun-1999 01:58:38                   Message No 0398
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Author: Da Kuang <[email-masked]>
Subject: Wk 0997 JPL IGEX Analysis Report

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JPL IGEX ANALYSIS REPORT FOR GPS-WEEK 0997 (DATE 99FEB14 TO 99FEB20)
*****************************************************************************
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:
              jpx0997n.sp3 -- 24 hours ephemerids files of the solution;
              jpx09977.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:
	99feb14:  REFCLOCK  = 'IRKZ'
	99feb15:  REFCLOCK  = 'KHAB'
	99feb16:  REFCLOCK  = 'KHAB'
	99feb17:  REFCLOCK  = 'KHAB'
	99feb18:  REFCLOCK  = 'LRBA'
	99feb19:  REFCLOCK  = 'LRBA'
	99feb20:  REFCLOCK  = 'LRBA'
 
------------------------------------------------------------------------
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  99feb14 99feb15 99feb16 99feb17 99feb18 99feb19 99feb20
------------------------------------------------------------
01	---	---	161	539	 59	155	
03	 15	 61	 10	  9	 13	 20	
04	 18	 30	 23	 24	 13	  9	
06	 14	 27	 11	 29	 20	 27	
07	  9	 20	 11	 40	 18	 23	
08	 19	 20	 20	 60	 38	 68	
09	 47	 14	 50	 59	 17	 21	
10	723	796	1873	13715	9574	171	
11	  7	  7	 30	 42	 23	 13	
13	 32	 36	  6	 45	 15	 22	
16	101	 83	 43	230	 56	 82	
17	 21	 27	 41	108	 11	 17	
18	 17	 41	 25	 45	 26	 26	
20	  8	 36	 12	 75	 28	109	
22	 32	 24	 11	102	 74	 61	
 
------------------------------------------------------------------------
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     41    75    62    19    19   102 
BORG  RRRRRRR     20    72    31    65    15    46 
BRUG  RNNNNNR     10   172     9   172     3     8 
CSIR  NNNRRRN    788    52    58   395   330   602 
DLRA  RRRRRRR     28    83    17    86    18    17 
GATR  GGRRGGG    182    29    14   184     9    20 
GRAB  GGGGFFF      2     3     3     3     0     5 
HERP  RRRRRRR     16    14    19    14     9    23 
IRKZ  FGGGGGG      1     8     8     2     1    12 
KHAB  FFFFGGG      1     1     3     0     0     3 
KR0G  FFFFFFF      1     4     5     3     1     5 
LDS1  GNNNGGR     68     4    98     3     4   119 
LDS2  GGGGGGG     11     7    11     6     4    16 
LINR  RRRRRRR     30    32     7    39    10    20 
LRBA  FFFFFFF      2     1     4     1     1     4 
MAGD  RRRRGGG      4     4     2     5     2     3 
MDOA  RRRRRRR      8    20    16     8     4    25 
MDVZ  FFFFFFF      7     4     4     7     1     5 
METZ  FGGGGGG      4     2     7     2     6     6 
MTKA  NNGGGGG      2     7     2     5     1     4 
NKLG  GGGGGGF     13     6     1     6     1    13 
NTZ3  GGGGGGG      2     2     3     2     0     4 
OS0G  FFFFFFF      2     2     4     2     0     5 
PKST  GGNNNNN      2     4     2     5     1     2 
REUN  GGGGFFF      5    24     8     9     1    24 
STRR  FFFFFFF      6     2     2     4     1     4 
SUNM  FFFFGGG     13     4     6     9     3    12 
THU2  GGFFFFF      4     3     7     3     4     7 
TSKA  FFFFGGG      1     6     3     4     0     6 
WTZG  NNNRNNN      0     0     0     0     0     0 
WTZZ  FFFFFFF      2     1     3     2     0     4 
YAKT  RGGGGGG      1     3     4     2     3     4 
YARR  GGGGNNG      4     9     3     4     1    10 
ZIMJ  GFFGGGF      3     3     3     4     1     4 
ZIMZ  FFFGGGF      3     2     4     2     1     5