Subject: [Sirgas-Mail] No.3198: IBGE SIRGAS combination report for week 2143 From: Sonia Maria Alves Costa RESULTS -------------------------------------------------------------------------------------------------- 1)RESULT FILES -------------------------------------------------------------------------------------------------- IBG2143S.SNX covariance matrix loosely constrained weekly combination ibg21P2143.snx covariance matrix constrained weekly combination IBG2143S.SUM summary of combination (text file) ibg21P2143.crd coordinates from week combination -------------------------------------------------------------------------------------------------- 2)EQUIPMENT INCONSISTENCIES -------------------------------------------------------------------------------------------------- Station PC Comments -------------------------------------------------------------------------------------------------- None -------------------------------------------------------------------------------------------------- 3)MISSING STATIONS -------------------------------------------------------------------------------------------------- Station PC Comments -------------------------------------------------------------------------------------------------- POPA DGF POVE DGF CN41 ECU POVE ECU OHI3 GNA -------------------------------------------------------------------------------------------------- 4)EXCLUDED STATIONS -------------------------------------------------------------------------------------------------- Station PC Comments -------------------------------------------------------------------------------------------------- PASM 48063M001 INE Large residuals in East= 23.46 mm AMTE 48091M001 INE Large residuals in East=-15.96 mm -------------------------------------------------------------------------------------------------- 5)STATISTICS OF COMBINATION Sol No. STATIONS Rms (mm)* Chi**2/DOF 1/(Chi**2/DOF) -------------------------------------------------------------------------------------------------- CHL 86 1.62 0.66 1.515 DGF 213 1.59 0.63 1.587 ECU 112 1.51 0.57 1.754 GNA 109 0.19 0.01 100.000 IBG 196 1.63 0.66 1.515 IGA 110 1.42 0.51 1.961 INE 49 0.19 0.01 100.000 URY 95 1.66 0.69 1.449 USC 92 1.55 0.60 1.667 -------------------------------------------------------------------------------------------------- COMBINATION 365 1.58 0.62 ----- * A posteriori RMS of unit weight 6)RMS WITH RESPECT TO SOLUTION in mm -------------------------------------------------------------------------------------------------- Solution. N E U -------------------------------------------------------------------------------------------------- IGS14 core stations (25) 0.96 0.83 0.71 All IGS stations (70) 0.90 1.29 2.63 7)RMS WITH RESPECT TO IBG21P2142 SOLUTION in mm -------------------------------------------------------------------------------------------------- Sol. N E U -------------------------------------------------------------------------------------------------- All stations (360) 1.14 1.20 4.07 -------------------------------------------------------------------------------------------------- 8)HELMERT TRANSFORMATION PARAMETERS WITH RESPECT TO COMBINED SOLUTION -------------------------------------------------------------------------------------------------- Translation (m) Rotation (”) Sol Rms (m) X Y Z X Y Z Scale (ppm) ----------------------------------------------------------------------------- CHL 0.00137 -0.0026 -0.0020 -0.0047 0.0001 0.0001 -0.0001 -0.00029 DGF 0.00099 0.0000 0.0009 -0.0001 0.0000 0.0000 0.0000 0.00010 ECU 0.00107 -0.0027 -0.0025 -0.0006 0.0000 0.0000 -0.0001 0.00016 GNA 0.00281 0.0052 0.0053 -0.0025 0.0000 0.0002 0.0004 0.00031 IBG 0.00139 -0.0024 -0.0032 -0.0009 0.0000 0.0000 -0.0001 -0.00010 IGA 0.00073 0.0020 -0.0045 0.0011 0.0001 0.0000 0.0001 -0.00034 INE 0.00405 -0.0149 -0.0064 0.0116 -0.0003 -0.0004 -0.0003 -0.00264 URY 0.00116 -0.0081 -0.0019 -0.0011 -0.0001 0.0001 -0.0002 0.00003 USC 0.00218 0.0085 0.0003 0.0009 0.0000 -0.0001 0.0003 -0.00013 Best regards ================================================ Sonia Costa Coordenao de Geodsia - CGED Instituto Brasileiro de Geografia e Estatstica - IBGE Tel: 21 21424985 / 21 21424986

RESULTS

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1)RESULT FILES

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IBG2143S.SNX        covariance matrix loosely constrained weekly combination

ibg21P2143.snx      covariance matrix constrained weekly combination

IBG2143S.SUM        summary of combination (text file)

ibg21P2143.crd      coordinates from week combination

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2)EQUIPMENT INCONSISTENCIES

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Station             PC        Comments

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None

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3)MISSING STATIONS

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Station        PC          Comments

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POPA          DGF

POVE          DGF

CN41          ECU

POVE          ECU

OHI3          GNA

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4)EXCLUDED STATIONS

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Station             PC        Comments

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PASM 48063M001      INE         Large residuals in East= 23.46  mm 

AMTE 48091M001      INE         Large residuals in East=-15.96  mm   

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5)STATISTICS OF COMBINATION

Sol   No. STATIONS  Rms (mm)*  Chi**2/DOF  1/(Chi**2/DOF)

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CHL          86       1.62         0.66         1.515

 DGF         213       1.59         0.63         1.587

 ECU         112       1.51         0.57         1.754

 GNA         109       0.19         0.01         100.000

 IBG         196       1.63         0.66         1.515

 IGA         110       1.42         0.51         1.961

 INE          49       0.19         0.01         100.000

 URY          95       1.66         0.69         1.449

 USC          92       1.55         0.60         1.667

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COMBINATION  365       1.58         0.62         -----

 

*  A posteriori RMS of unit weight

 

6)RMS WITH RESPECT TO  SOLUTION in mm

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Solution.                  N         E         U

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IGS14 core stations  (25) 0.96      0.83      0.71

All IGS stations     (70) 0.90      1.29      2.63

 

 

7)RMS WITH RESPECT TO IBG21P2142 SOLUTION in mm

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Sol.                        N         E         U

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All stations         (360) 1.14      1.20      4.07

 

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8)HELMERT TRANSFORMATION PARAMETERS WITH RESPECT TO COMBINED SOLUTION

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                    Translation (m)             Rotation (")

 

   Sol   Rms  (m)      X       Y       Z         X       Y       Z     Scale (ppm)

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   CHL   0.00137   -0.0026 -0.0020 -0.0047    0.0001  0.0001 -0.0001   -0.00029

   DGF   0.00099    0.0000  0.0009 -0.0001    0.0000  0.0000  0.0000    0.00010

   ECU   0.00107   -0.0027 -0.0025 -0.0006    0.0000  0.0000 -0.0001    0.00016

   GNA   0.00281    0.0052  0.0053 -0.0025    0.0000  0.0002  0.0004    0.00031

   IBG   0.00139   -0.0024 -0.0032 -0.0009    0.0000  0.0000 -0.0001   -0.00010

   IGA   0.00073    0.0020 -0.0045  0.0011    0.0001  0.0000  0.0001   -0.00034

   INE   0.00405   -0.0149 -0.0064  0.0116   -0.0003 -0.0004 -0.0003   -0.00264

   URY   0.00116   -0.0081 -0.0019 -0.0011   -0.0001  0.0001 -0.0002    0.00003

   USC   0.00218    0.0085  0.0003  0.0009    0.0000 -0.0001  0.0003   -0.00013

 

Best regards

================================================

Sonia Costa

Coordenao de Geodsia - CGED

Instituto Brasileiro de Geografia e Estatstica - IBGE

Tel: 21 21424985 / 21 21424986