The Radio Fundamental Catalogue
data release rfc_2024d
The Radio Fundamental Catalogue, data release rfc_2024d, presents
positions of compact radio sources and estimates of other parameters using
all available VLBI observations at 8.6 GHz and 2.2 GHz, as well at 5 and 22 GHz from
1980.04.11
through
2024.12.03
,
in total,
20819
observing sessions, including
1152
observing sessions of
72
dedicated absolute astrometry programs.
Methods of data analysis are described in full detail in
Petrov, L., Kovalev, Y.Y., "The Radio Fundamental Catalogue. I. Astrometry", (2024),
in press, arXiv:2410.11794.
Positions of
21942
sources were adjusted in a single least square solution
using
26,298,973
fused group delays.
Technical description of the solution is available
here.
Astrometric Results
-
The Radio Fundamental Catalogue, data release rfc_2024d,
contains source positions, their uncertainties, estimates of the
correlated flux density integrated from images, estimates of the
correlated flux density of unresolved components, naturally weighted CLEAN
images in GIF and in fits format at 2.2, 4.4, 8, 15, and 23 GHz (S, C, X, U,
and K bands); plots of the correlated flux density as a function of the
length of the baseline projection to the source plane; and files
with calibrated uv fringe visibility data in
FITS format. It is available in three forms:
- ASCII:
rfc_2024d_cat.txt
- HTML:
rfc_2024d_cat.html
(64 Mb). NB: loading the catalogue
takes time, please be patient.
- KEY:
rfc_2024d_cat.key
in key-format format that can be used as an a priori
file for
VLBI SCHED scheduling software package.
Images and estimates of correlated flux densities are available for
20474
sources from this catalogue.
-
The multi-band extension of the rfc_2024d catalogue.
(7 Mb)
The catalogue contains offsets of source positions derived from
single-band and dual-band observations with respect to rfc positions
as well and their uncertainties.
-
Cross-match table of rfc_2024d catalogue
against 14 large surveys .
-
Summary of of the statistics of association of the
of rfc_2024d catalogue.
Interactive VLBI calibrator search tool
VLBI calibrator search
among sources in the rfc_2024d catalogue.
Statistics of observing campaigns
- Statistics of astronomic campaigns
used in solution rfc_2024d.
- 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.
- List of experiment names and expriment codes
of astrometric experiments.
- List of experiment names and experiment codes
of 24-hr geodetic experiments.
- List of experiment names and experiment codes
of 1-hr geodetic experiments.
- list of radio sources that were observed, but
have not detected at 4 or 8 GHz.
- List of pairs of sources with angular separation less
than 1 arcminute.
- List of sources with non-canonical
designators.
- List of sources with non-canonical
common names.
Astrophysics Information
-
127,233
Images and calibrated uv data
for
20474
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.
Geophysics Results
Station positions and velocities
Positions of 232 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 IERS C04 series of the
Earth orientation parameters
IERS C04 time series.
Antenna axis offsets
Antenna axis offsets from LSQ estimation
rfc_2024d.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.
Earth orientation parameters
This table contains the series of the series of the Earth Orientation
Parameters.
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.
Acknowledgments
The use of Very Long Baseline Array
(VLBA) data is acknowledged. VLBA is operated by the National Radio Astronomy
Observatory, which is a facility of the National Science Foundation, and operated
under cooperative agreement by Associated Universities, Inc. The use of the VLBA under
the US Naval Observatory's time allocation is acknowledged. This work supports USNO's
ongoing research into the celestial reference frame and geodesy. These data were
retrieved from the VLBA public archive.
The use of Long Baseline Array
(LBA) data
is acknowledged. The LBA is a part of the Australia Telescope National Facility
which is funded by the Commonwealth of Australia for operation as a National
Facility managed by CSIRO.
The use of European VLBI Network
(EVN) data is acknowledged.
The European VLBI Network is a joint facility of independent European, African,
Asian, and North American radio astronomy institutes.
The use of Korean and VLBI Exploration for Astrometry VLBI Networks
(KVN and KaVa) data
The KVN and VERA are operated by the the Korea Astronomy and Space Science
Institute and the National Astronomical Observatory of Japan.
Back to the Radio Fundamental Catalogue.
Web page was prepared by Leonid Petrov
(
)
Last update: 2025.01.06_20:10:39