VLBI global solution rfc_2016c
Solution rfc_2016c was replaced with rfc_2016d
We recommend to use rfc_2016d solution.    
If you really, really, really nead the obsolete solution rfc_2016b,
scroll to the bottom of  this page.
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   Astrometric global solution rfc_2016c used all available VLBI observations
at 8.6GHz and 2.2 GHz, as well at 5 and 22GHz from 1980.04.11 through
2016.07.18, in total 6446 observing sessions, including 536 observing
sessions dedicated to the absolute astrometry surveys,
such as
In total,  13,223,603  estimates of group delays were used in
LSQ solutions.
Positions of 11,448 sources were adjusted in 6 least square solutions
for X/S, X/C, X-band, S-band, C-band, and K-band solutions. Currently, this
is the most complete catalogue of positions of compact radio sources.
Technical description of the solution is available
here.
The contents of this web page and following links contain unpublished
material. The material is provided as a courtesy for the preview. Using this material 
in publications, copying, and posting on Internet is not allowed without written 
prior permission.
 Astrometric Results 
  -  
       rfc_2016c catalogue in
       HTML form (29 Mb). NB: loading the catalogue
       takes time, please be patient. The catalogue contains source
       positions, their uncertainties, estimates of the total VLBA flux
       density, the VLBA flux density of unresolved components, naturally
       weighted CLEAN images in postscript and in fits format at X and
       S-band; plots of the correlated flux density as a function of the
       length of the baseline projection to the source plane; fits files
       with calibrated uv data. Images and estimates of
       correlated flux densities are available for 9030 sources from this
       catalogue.       
  
-  
       rfc_2016c  catalogue in ASCII format.
       The catalogue contains source positions, their uncertainties,
       total VLBA flux density, the VLBA flux density of unresolved
       components.
       
  
-  
       rfc_2016c  catalogue in key-format
       format. The catalogue contains source positions.
       This catalogue can be used as a priori file for
        VLBI SCHED
       scheduling software package.
       
  
-  
       rfc_2016c  catalogue in blokq
       format. The catalogue contains source positions and
       their uncertainties. This catalogue can be used as a priori
       file for library  VTD and 
        Mark5 VLBI
       analysis software package Calc/Solve.
       
  
-  Interactive
       VLBI calibrator search tool among sources in the rfc_2016c
       catalogue.
       
 Astrophysics Information 
  -  
       130,228
        Images and calibrated uv data
        for 
       20486
       compact sources at S, C, X, U, K, Q, and W bands in one compressed
       tar.bz2 file is available
       (73 Gb). For many sources images for more than one epoch are available.
       
-  
       Single dish spectrum
        for  10,578  sources from
       published results determined with the use of the CATS database.
       NB: the estimates of flux density are NOT simultaneous. Since
       the majority of sources are variable, these estimates of the spectrum
       are not always reliable. Estimates of spectrum for some sources
       may be wrong due to errors in the database of singe dish flux
       measurements.
       
 Geophysics Results 
 Station positions and velocities 
     Positions of 182 stations and their velocities were estimated as global
     parameters. Station positions are given on epoch 2000.01.01.
     Boundary conditions were selected in such a way that source positions,
     station positions and velocities are compatible with USNO series of the
     Earth orientation parameters
     finals.all and
     finals.daily.
     
 Antenna axis offsets 
Antenna axis offsets from LSQ estimation    
  rfc_2016c.axof
 Earth orientation parameters 
     Pole coordinates X, Y, UT1 angle, and their rate, daily correction to the
     nutation in longitude and nutation in obliquity were estimated for each
     session separately.
     
 Statistics 
     
 Miscellaneous 
     
Usage policy: you can download files for research purposes, you can put links
to this Web page, but you cannot post any part of content of this Web
page on ftp or http servers without prior written permission from authors.
Back to Astrogeo Center home page. 
    Web page was prepared by Leonid Petrov
    ( )
) 
   
   Last update: 2017.04.11_04:22:31