Speaker
Dr
David Gordon
(NVI Inc./GSFC)
Description
The current state of the X/S source catalog is presented
and compared to ICRF2. There are currently ~60% more observations
and ~30% more sessions than were used for ICRF2. An ICRF made
today would have ~20% more sources than ICRF2 and the average inflated
formal errors would be ~2.4 times better than ICRF2. Much of this
improvement has come from the VCS-II campaign on the VLBA, in
which the average inflated formal errors of 2062 sources were
reduced by a factor of 3.7 and 324 new sources were added.
Additional new sources have come from the RDV/RV, CRF, AUST, AUA,
and AOV sessions. In addition to the current
status, we will present some of the additional goals
for the X/S catalog before ICRF3 in 2018. This includes
improving the positions of a limited number of sources
for Gaia alignment and for X/Ka comparisons.
Primary author
Dr
David Gordon
(NVI Inc./GSFC)
Co-author
Dr
Karine Le Bail
(NVI Inc./ GSFC)
