Plot of arc-length repeatability from arcso_02 solution. Positions of all sources were estimated as local parameters. All available VLBI observations were used. 1 800 644 arc-length were computed from the adjustments of source positions. Pre-selection: arc-lengths with less than two observations and with formal uncertainties greater than 2 nrad for each source of the arc were discarded. Then arc-length time series were computed. 2973 series has more than 9 points (the arc was observed in 10 or more sessions). Root mean square deviations from the mean arc-length were computed and called "arc-length repeatability". The plot of arc-length repeatability versus arc-length is presented.

Last update: 26-JAN-2001 20:07:14