[IGSREPORT-22708] Wk 1783 MIT T2 RNAAC Analyis Report

Tom Herring tah at chandler.mit.edu
Wed May 7 00:02:39 PDT 2014


Author: Thomas Herring

********************************************************************************
MIT R/GNAAC  ANALYSIS REPORT GPS-WEEK 1783    Dates: 14mar09  to  14mar15 
********************************************************************************

MIT (Massachusetts Institute of Technology) 
Room 54-820A
77 Massachusetts Avenue, 
Cambridge,  MA  02139
e-mail: tah at mit.edu 
tel:    (617)253-5941 (Tom Herring)
fax:    (617)253-1699

PRODUCTS GENERATED:
The following products are generated and uploaded into CDDIS @ NASA/GSFC
   MIT1783p.SNX   RNAAC combination sinex file from all available analysis centers
                  with the GNAAC sinex files.
   MIT1783p.SUM   Name of this summary file

0.0 Starting Week 1395, adopted IGS05 for reference frame.  The combination
    is now minimum constraint.

0.1 Starting Week 1239 we adopted IGb00 reference system (given in
    IGS03P33_RS99.snx)

0.2 Starting Week 1016 we starting using ITRF97

0.3 Starting Week 0939 we starting using ITRF96 and its reference site list.  

0.4 Starting Week 0901 we started using a new apriori file not Non-ITRF94 coordinates
    based on the analysis of week 0822-0900 sinex files.  This change will 
    effect the corrdinate corrections given in this summary. 
 
1.0 Analysis Procedures:

(1) Each centers sinex solutions are de-constrained before
 combination.  When center constraints are available, the
 constraints are loosened to +-1 meters.
 
(2) Covariance matrices from each center are re-scaled based
 on the change in chi**2 when the RNAAC's sinex file is
 combined with the loose combination of the GNAAC's 
 sinex files.  To generate reasonable sigmas, the scale factor
 is set at 0.3 times the chi**2/degree of freedom increment.
 
(3) Reference frame is defined translation, rotation to the IGS05
 reference frame defined with the following sites:
 vesl vill madr sfer rabt asc1 hofn mas1 reyk pdel chpi qaq1 braz
 kely stjo ohi2 ohi3 lpgs alrt hlfx cord cro1 unsa sch2 riog thu3
 sant wes2 conz nrc1 scub gode usno algo mana glps nlib chur dubo
 flin mdo1 amc2 pie1 ispa yell gold holm drao quin will whit thti
 mkea hnlc kokb aspa chat mcm4 bili noum mac1 petp tidb hob2 tow2
 lae1 guam yssk tskb alic cedu jab1 darw tixi daej pimo karr bjfs
 pert yar1 wuhn cas1 ulab irkt kunm coco lhaz nril guao novj hyde
 dav1 iisc pol2 dgar kerg kit3 maw1 artu reun sey1 bahr mali trab
 syog mdvj ramo polv nico mbar glsv harb hrao mets joze suth tro1
 trom bor1 mate not1 pots wtzr onsa nya1 nyal nklg cagl zimm gras
 wsrt brus  

Earth rotation parameters are estimated for each center (even when not given
in the original SINEX files.  In this case the partial derivatives are
computed from the station coordinates).

(4) The summary below gives 
    (a) The RMS difference between the GNAAC loose analysis and
the GNAAC+RNAAC loose analysis.  If this RMS is small then the 
RNAAC combination is not effecting the global coordinates solution
significiantly.
    (b) For each RNAAC Center we give:
        (b.1)  the VARIANCE rescaling factors used (determined as 
discussed above) and
        (b.2)  the adjustment to the apriori coordinates
of the sites for each RNAAC which are not included in the GNAAC
analyses.  The apriori coordinates are based on the analysis
of the first five weeks of RNAAC sinex files.  When an RNAAC
has no unique sites, the adjustments are given for all sites
in the center based on the analysis from that center alone.
 
 SUMMARY OF POSITIONS FOR WEEK 1783
 
 IMPACT OF RNAACs on GNAAC Loose solution
 
 CENTER RESULTS
 
 For Center NCL VARIANCE FACTOR 1
 Site       dN     +-         dE     +-         dU    +-   Center
           (mm)   (mm)       (mm)   (mm)      (mm)   (mm) 
 ABMF       7.4    0.9       21.2    0.7        5.5    1.2 Center NCL
 ADIS      -9.9    0.9        2.7    0.7      -13.6    1.1 Center NCL
 AJAC      40.2    0.8       71.2    0.7      -15.3    1.2 Center NCL
 ALRT       3.7    0.7       -8.5    0.7       10.7    1.4 Center NCL
 ARTU      -3.4    0.8        6.6    0.7      -12.7    1.0 Center NCL
 BADG       3.8    0.9       17.2    0.8      -15.0    1.5 Center NCL
 BAKO       0.6    0.9       -3.8    0.8      -11.3    1.4 Center NCL
 BJCO     -10.5    0.9       -4.2    0.7       -8.5    0.9 Center NCL
 BJNM     -46.0    0.8       98.6    0.7      -32.2    1.2 Center NCL
 BOGI      -0.6    1.0        3.1    0.9      -12.7    2.2 Center NCL
 BREW      -8.3    0.8       -1.3    0.7       -6.3    1.0 Center NCL
 BRUX      -6.7    0.8       13.1    0.7       -9.6    1.0 Center NCL
 BSHM      -0.9    0.9        7.7    0.8      -25.1    1.7 Center NCL
 CCJ2      13.5    0.9      -32.3    0.7      -18.4    1.4 Center NCL
 CEDU      -4.1    0.8        5.3    0.7        5.5    0.9 Center NCL
 CGGN     -21.4    0.9        8.3    0.7        0.8    1.1 Center NCL
 CHAN      -6.2    0.9       17.6    0.7        1.5    1.5 Center NCL
 CHPI      28.4    0.9       -8.0    0.7       12.0    1.1 Center NCL
 CHTI      -3.9    0.8        3.1    0.7        4.5    1.0 Center NCL
 CKIS      -6.6    0.9        1.8    0.7        5.5    1.4 Center NCL
 CNMR      -7.8    0.9        8.4    0.7       -8.1    1.4 Center NCL
 CRAO      -6.2    0.9        5.7    0.8       -8.8    1.9 Center NCL
 CUSV      -6.3    0.9        2.1    0.7       -1.8    1.3 Center NCL
 DGAV     -12.0    0.9       -5.4    0.7        5.6    1.2 Center NCL
 DRAG      -7.3    0.8        5.0    0.7      -12.6    1.1 Center NCL
 FAA1      -6.1    0.9        1.2    0.7      -21.2    1.2 Center NCL
 FALE      -6.7    0.9       46.2    0.8      -10.7    1.7 Center NCL
 FALK       0.8    0.8       -2.1    0.7        7.2    1.2 Center NCL
 FLRS       7.3    0.8      -71.0    0.7      -19.6    1.1 Center NCL
 FRDN      -6.9    0.8       -0.1    0.7       -8.4    1.4 Center NCL
 GOPE      -1.8    0.8        1.9    0.7      -12.2    1.2 Center NCL
 GUAO      -8.1    0.8       11.8    0.7       -9.8    1.2 Center NCL
 HLFX      -2.0    0.8       -4.0    0.7       -9.4    1.0 Center NCL
 HNLC      -7.9    0.9        3.8    0.7        5.2    1.3 Center NCL
 HNPT      -2.6    0.8        1.1    0.7       -3.4    1.1 Center NCL
 HOLM     -45.6    0.7      -56.7    0.7        1.2    1.4 Center NCL
 IENG      -3.9    0.8        1.8    0.7       -4.0    1.0 Center NCL
 IISC     -19.1    0.9       31.8    0.7      -13.2    1.3 Center NCL
 INEG     -11.8    0.9      -28.0    0.7      -70.7    1.2 Center NCL
 IQAL      -4.7    0.8       -0.4    0.7        6.6    1.2 Center NCL
 IRKJ      -5.5    0.8       11.7    0.7      -14.9    1.0 Center NCL
 IRKM      -4.6    0.8        3.7    0.7        2.1    1.4 Center NCL
 ISBA      27.2    0.9        3.4    0.8      -26.2    1.7 Center NCL
 KARR      -0.7    0.9        4.6    0.7        1.4    1.0 Center NCL
 KAT1       5.5    0.9       22.0    0.8      -35.2    1.5 Center NCL
 KELY       4.2    0.7       -3.9    0.7       31.8    1.1 Center NCL
 KIR0      -0.1    0.8        2.0    0.7       -8.2    1.5 Center NCL
 KIRI      -6.6    1.1        5.2    1.0        5.9    3.2 Center NCL
 KIRU      41.7    0.7       49.6    0.7       -2.7    1.3 Center NCL
 KIT3      -9.2    0.8       -5.4    0.7      -11.9    1.1 Center NCL
 KOKV      -5.7    0.9        3.3    0.7        1.7    1.1 Center NCL
 KOUR      -3.9    0.9        6.2    0.7        0.3    1.1 Center NCL
 LAMA      -4.1    0.8        1.9    0.7      -11.7    1.1 Center NCL
 LCKI      45.2    1.0       57.9    0.8      -21.0    2.0 Center NCL
 LEIJ      -0.8    0.9        2.4    0.8      -11.8    1.8 Center NCL
 LPAL      -2.0    0.9       -3.2    0.7      -14.8    1.4 Center NCL
 MAG0      10.4    0.8      -20.3    0.7       10.4    1.2 Center NCL
 MAR6      -2.1    0.8        2.2    0.7      -10.6    1.2 Center NCL
 MAUI      -4.8    0.9        3.5    0.7        9.8    1.1 Center NCL
 MAW1      -3.1    0.7        1.2    0.7        5.1    1.1 Center NCL
 MDVJ      -2.9    0.8        2.9    0.7      -13.2    1.1 Center NCL
 MGUE       6.9    0.9      -23.6    0.7       17.8    1.2 Center NCL
 MIZU      -9.1    0.8        7.6    0.7      -13.4    1.1 Center NCL
 MOBK       6.8    1.0        4.2    0.8      -34.1    2.1 Center NCL
 MOBS     -10.9    0.8        1.6    0.7        7.9    1.1 Center NCL
 MORP       0.8    0.8        0.7    0.7      -13.7    1.2 Center NCL
 NAIN      -2.5    0.8       -2.1    0.7       -7.6    1.2 Center NCL
 NAUR      -4.2    0.9       -7.5    0.8        5.6    1.5 Center NCL
 NIUM      -6.0    0.9        5.0    0.8       18.9    1.7 Center NCL
 NNOR      -6.8    0.9        2.6    0.7      -20.4    1.6 Center NCL
 NOT1      -3.7    0.8        2.0    0.7      -21.6    1.1 Center NCL
 NOVM      -5.7    0.8       12.4    0.7      -44.6    1.3 Center NCL
 NRIL      -4.0    0.7        9.0    0.7       -1.3    1.1 Center NCL
 NTUS     -27.9    0.9       97.1    0.7       -3.7    1.2 Center NCL
 NURK     -15.9    0.9        6.4    0.7      -16.0    1.3 Center NCL
 OPMT      -2.4    0.8        0.4    0.7      -20.7    1.6 Center NCL
 PARK     149.7    0.9       62.3    0.7        9.1    1.5 Center NCL
 PBRI      27.0    0.9      -36.7    0.8       56.0    1.5 Center NCL
 PENC      -2.4    0.9        1.7    0.8      -15.4    2.1 Center NCL
 PETS      -3.4    0.8        0.9    0.7       -3.2    1.2 Center NCL
 POLV      -1.0    0.8        2.1    0.7      -37.3    1.1 Center NCL
 POVE      -2.2    0.9        2.0    0.7       -4.5    1.1 Center NCL
 PTBB      -4.4    0.8        2.9    0.7      -10.6    1.3 Center NCL
 QIKI      -3.4    0.7       -2.7    0.7       -0.1    1.2 Center NCL
 RABT      -2.6    0.8        3.3    0.7      -18.6    0.9 Center NCL
 RCMN     -16.3    1.1        9.9    1.0      -12.4    2.6 Center NCL
 RECF      -6.2    0.9       -7.3    0.7        7.7    1.3 Center NCL
 RESO      -3.3    0.7       -2.4    0.7        8.7    1.5 Center NCL
 REYK      -1.9    0.7       -1.5    0.7      -28.2    1.1 Center NCL
 RIO2      -5.3    0.8       -7.4    0.7      -27.0    1.2 Center NCL
 RIOP      33.3    0.9       40.5    0.7      -32.3    1.2 Center NCL
 ROTH      27.7    0.8       41.3    0.7       23.1    1.3 Center NCL
 SALU      -0.5    0.9        8.8    0.7       16.2    1.5 Center NCL
 SAVO      -5.1    0.9        3.6    0.7       -1.7    1.4 Center NCL
 SCOR       1.4    0.7       -0.7    0.7       -9.9    1.1 Center NCL
 SEY1     -10.3    0.9       -4.6    0.8       -4.3    1.8 Center NCL
 SOLA       1.4    0.9       10.6    0.7       -8.6    1.6 Center NCL
 SPT0      39.6    0.8       49.9    0.7       -3.9    1.1 Center NCL
 STHL      -8.9    0.9       -6.8    0.7        6.6    1.1 Center NCL
 STK2     -38.0    0.9        4.1    0.7      -19.5    1.4 Center NCL
 STR1      -3.6    1.0        5.7    0.8        7.5    2.0 Center NCL
 STR2      -5.9    0.9        5.2    0.8       13.8    1.6 Center NCL
 SUTV      -8.9    0.8        2.1    0.7        3.6    1.1 Center NCL
 SVTL       7.3    0.9        4.7    0.7       23.2    1.7 Center NCL
 SYDN     151.7    0.8       58.9    0.7        4.5    1.3 Center NCL
 SYOG      -5.4    0.7        1.9    0.7       -1.0    1.0 Center NCL
 TAH1      -4.2    1.0        4.1    0.9       -9.8    2.2 Center NCL
 TASH      35.4    0.8       11.0    0.7      -24.2    1.2 Center NCL
 TCMS       1.6    0.9       13.8    0.8      -11.4    1.7 Center NCL
 TEHN      -3.1    0.8        8.4    0.7      -19.7    1.1 Center NCL
 THU2      12.0    0.7      -68.6    0.7       16.7    1.4 Center NCL
 THU3      -0.6    0.7       -4.1    0.7       11.5    1.3 Center NCL
 TNML       1.7    0.9       14.7    0.7      -10.3    1.5 Center NCL
 TONG     -26.3    1.1      270.9    1.0       17.7    3.2 Center NCL
 TUVA      88.1    1.0     -180.2    0.9       10.2    2.0 Center NCL
 UFPR      -5.1    0.9        0.9    0.7       10.3    1.3 Center NCL
 USN3      -4.9    0.8       -8.3    0.7       -4.5    1.1 Center NCL
 USNO      -7.9    1.1       -3.1    1.0       -8.8    4.2 Center NCL
 USUD       0.2    0.9       58.8    0.8        9.3    2.0 Center NCL
 VACS      -9.5    1.1        5.8    1.0       -1.0    3.0 Center NCL
 VALD      -6.7    0.8      -11.2    0.7       14.1    1.4 Center NCL
 VIS0       1.2    0.9        2.6    0.8       -8.9    1.7 Center NCL
 WAB2      42.6    0.8       57.9    0.7      -17.1    1.0 Center NCL
 WILL      -9.0    0.8       -5.0    0.7       -8.5    1.0 Center NCL
 WROC      40.8    1.0       59.0    0.8      -24.2    2.0 Center NCL
 WSRT      -2.6    0.8        2.4    0.7      -15.7    0.9 Center NCL
 YAKT     -22.0    0.8       22.2    0.7       -1.2    1.2 Center NCL
 YAR2     162.3    0.9      118.2    0.7       -3.3    1.2 Center NCL
 YAR3      -5.4    0.9        7.0    0.8        0.9    1.8 Center NCL
 YARR      -2.3    0.8        6.9    0.7       -3.1    1.1 Center NCL
 YEBE      -3.7    0.8        1.8    0.7      -27.1    1.4 Center NCL
 YSSK     -10.6    0.8       -8.3    0.7       -2.7    1.1 Center NCL
 ZAMB      -8.0    0.9       -0.2    0.7      -17.6    1.0 Center NCL
 ZWE2      -5.5    0.8        0.2    0.7        5.5    1.5 Center NCL



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