Solution rfc_2011d was replaced with rfc_2012a
We recommend to use rfc_2012a solution.
If you really, really, really nead the obsolete solution rfc_2012a,
scroll to the bottom of this page.
VLBI global solution rfc_2011d
Astrometric global solution rfc_2011d used all available VLBI observations
at 8.6GHz and 2.2 GHz, as well at 5 and 22GHz from 1980.04.11 through
2011.09.19, in total 5230 observing sessions, including 277 observing
sessions dedicated to the absolute astrometry surveys,
such as
In total, 8915944 estimates of group delays were used in
LSQ solutions.
Positions of 6541 sources were adjusted in 5 least square solutions
for X/S, 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.
Astrometric Results
-
rfc_2011d catalogue in
HTML form (10 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 3709 sources from this
catalogue. Among 6541 sources, 5417 are classified as calibrators,
1031 are classified as non-calibrators with reliable positions and
93 are classified as non-calibrators with unreliable positions.
For the sources from the latter class, there is a probability > 0.001
that group delay ambiguities were resolved incorrectly, and as a result,
their position may be off in a range of 0."1 to 5' from the reported
coordinates.
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rfc_2011d catalogue in ASCII format.
The catalogue contains source positions, their uncertainties,
total VLBA flux density, the VLBA flux density of unresolved
components.
-
rfc_2011d 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_2011d catalogue in blokq
format. The catalogue contains source positions and
their uncertainties. This catalogue can be used as a priori
file for Mark5 VLBI
analysis software package Calc/Solve.
- Interactive
VLBI calibrator search tool among sources in the rfc_2011d
catalogue.
Astrophysics Information
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28,853 Images and calibrated uv data
for 4321 sources at
S, C, X, U, K, Q, and W bands in one tar.bz2 file (33 Gb).
For some of the sources images for more than one epoch are available.
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Single dish spectrum
for 6252 sources from
published results determined with 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 167 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_2011d.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.
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Web page was prepared by Leonid Petrov
(
)
Last update: 2012.02.05_16:44:58