VLBI global solution rfc_2018b

If you really, really, really nead the obsolete solution rfc_2018a, scroll to the bottom of this page.

Astrometric global solution rfc_2018b used all available VLBI observations at 8.6GHz and 2.2 GHz, as well at 5 and 22GHz from 1980.04.11 through 2018.07.12, in total 6868 observing sessions, including the following 630 observing sessions of 30 dedicated absolute astrometry programs:

• 21 observing sessions of VLBA Calibrator Survey1--6;
  
• 17 observing sessions of Densification of the VLBA Calibrator Survey (VCS7);
  
• 10 observing sessions of Densification of the VLBA Calibrator Survey (VCS8);
  
• 99 observing sessions of Densification of the VLBA Calibrator Survey (VCS9);
  
• 18 observing sessions of the Australian LBA Calibrator Survey;
  
• 9 observing sessions of VCS-ii program;
  
• 3 observing sessions of the Northern Polar Cap program;
  
• 96 observing sessions of the VLBI 2MASS radioastronomy project;
  
• 16 observing sessions of the VLBA Imaging and Polarimetry Survey (VIPS);
  
• 162 regular geodetic VLBA sessions under the RDV program;
  
• 26 observing sessions in 1FGL, 2FGL, and 3FGL AGNs at parsec scales (s3111,s4195,bs241,s5272,s7104);
  
• 3 observing sessions of VLBA Galactic Plan Survey;
  
• 1 observing session of the EVN Galactic Plan Survey at K-band;
  
• 14 observing sessions of the K/Q survey;
  
• 5 observing sessions of the Improving the K-band Celestial Reference Frame in the North program (BJ083);
  
• 33 observing sessions of the VLBA calibrator survey for BeSSeL project (br145);
  
• 2 observing sessions of the Bologna survey of near galaxies (bg069,bg094);
  
• 2 observing sessions of the VLBA survey of flat-Spectrum FIRST Sources (bh019, bu007);
  
• 3 observing sessions of the CJ snap-shot survey with the VLBA (bb119);
  
• 2 EVN observing sessions for the ICRF densification (ec013,ec017);
  
• 8 VLBA+EVN observing sessions of the survey of optically bright quasars;
  
• 12 VLBA observing sessions of the survey for parallax measurements (br149);
  
• 4 observing sessions of the low luminosity gamma-ray blazars survey (bt110)
  
• 4 observing sessions of an undefined programs (bb041,bm252)
  
• 8 observing sessions of the VLBI Ecliptic Plane Survey with the VLBA
  
• 17 observing sessions of the VLBI Ecliptic Plane Survey with the CVN
  
• 2 observing sessions of SOFUS program
  
• 8 observing session of SOAP program
  
• 21 observing session of th VLBA Survey of unassociated gamma-ray objects in the 7-year Fermi/LAT catalog
  
• 2 observing sessions of Probing milliarcsecond optical structure through VLBI observations of Gaia detected AGNs
  

Positions of 15,155 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

1. rfc_2018b catalogue in HTML form (39 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 13,371 sources from this catalogue.
2. rfc_2018b catalogue in ASCII format. (2 Mb) The catalogue contains source positions, their uncertainties, total VLBA flux density, the VLBA flux density of unresolved components.
3. rfc_2018b 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.
4. rfc_2018b 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 VLBI analysis software package Post-Solve.
5. Interactive VLBI calibrator search tool among sources in the rfc_2018b catalogue.

Astrophysics Information

1. 127,948 Images and calibrated uv data for 20472 compact sources at S, C, X, U, K, Q, and W bands in one compressed tar.bz2 file is available (104 Gb). For many sources images for more than one epoch are available.
2. Single dish spectrum for 13,861 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

Station positions catalogue from XS observations		Format description
Station positions catalogue from X-band only observations		Format description
Station positions catalogue from C-band only observations		Format description
Station positions catalogue from K-band only observations		Format description
Station velocity catalogue		Format description
Empirical model of aharmonic non-linear site motion		Format description
Empirical model of harmonic site motion		Format description

Antenna axis offsets

Earth orientation parameters

EOP time series in Solve EOB format		Format description
EOP time series in Solve NUT format		Format description
EOP time series in IVS format		Format description
Correlations between EOP estimates		Format description

Statistics

Miscellaneous

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Web page was prepared by Leonid Petrov ()
Last update: 2018.10.28_22:36:55