VLBI global solution rfc_2022a
Astrometric global solution rfc_2022a used all available VLBI observations
at 8.6GHz and 2.2 GHz, as well at 5 and 22GHz from 1980.04.11 through
2022.03.24, in total 8026 observing sessions, including
959 observing sessions of 64 dedicated
absolute astrometry programs.
In total, 21,694,473 estimates of group delays were used in
Positions of 20,499 sources were adjusted in a single solutuion
that includes X/C and X/S dual-band as well single band group delays
X-band, S-band, C-band, and K-bands.
is the most complete catalogue of positions of compact radio sources.
Technical description of the solution is available
The contents of this web page and following links contain unpublished
material. The material is provided as a courtesy for preview. Using this
material in publications, copying, and posting on Internet is not allowed
without written prior permission.
rfc_2022a catalogue in
HTML form (58 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 17,410 sources from this
rfc_2022a catalogue in ASCII format.
The catalogue contains source positions, their uncertainties,
total VLBA flux density, the VLBA flux density of unresolved
rfc_2022a 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_2022a 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.
VLBI calibrator search tool among sources in the rfc_2022a
Observing campaigns statistcs
- Brief campaign description
- Statistics of the number of sources observed and
detected per campaign.
- List of sources that were observed only
in a given campaign
- List of campaigns a given source was observed
- Statistics of detections per campaign
Images and calibrated uv data
compact sources at S, C, X, U, K, Q, and W bands in one compressed
tar.bz2 file is available
(157 Gb). For many sources images for more than one epoch are available.
Single dish spectrum
for 17,352 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.
Station positions and velocities
Positions of 203 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
Antenna axis offsets
Antenna axis offsets from LSQ estimation
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