Astrometric global solution rfc_2020d used all available VLBI observations
at 8.6GHz and 2.2 GHz, as well at 5 and 22GHz from 1980.04.11 through
2020.12.07, in total 7618 observing sessions, including
866 observing sessions of 44 dedicated
absolute astrometry programs.
In total, 19,711,573 estimates of group delays were used in
LSQ solutions.
Positions of 18,456 sources were adjusted in 5 least square solutions
for X/S and X/C, X-band, S-band, C-band, and K-band solutions. 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The contents of this web page and following links contain unpublished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_2020d catalogue in
HTML form (56 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 15,229 sources from this
catalogue.
-
rfc_2020d catalogue in ASCII format.
(3 Mb)
The catalogue contains source positions, their uncertainties,
total VLBA flux density, the VLBA flux density of unresolved
components.
-
rfc_2020d 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_2020d 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.
- Interactive
VLBI calibrator search tool among sources in the rfc_2020d
catalogue.
Astrophysics Information
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Images and calibrated uv data
for
compact sources at S, C, X, U, K, Q, and W bands in one compressed
tar.bz2 file is available
(141 Gb). For many sources images for more than one epoch are available.
-
Single dish spectrum
for 15,413 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 201 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_2020d.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: