ivsopar.obspm.fr

Radio source coordinate time series

 

 

0422+004

Data
SIMBAD - NED - LQAC
MOJAVE - Astrogeo - BVID
Aladin - SDSS

Right ascension: 66.1951752742434°
Declination: 0.6017581518279°
No. sessions: 123
No. delays: 3647
Defining: Yes
RMS(α cos δ) = 0.2553 mas
RMS(δ) = 0.3546 mas
Cleaned No. sessions: 114
Cleaned RMS(α cos δ) = 0.2315 mas
Cleaned RMS(δ) = 0.3164 mas

Note: Cleaning is a simple outlier elimination algorithm to remove bad sessions. Points whose distance to the mean scaled by the error is larger than 3 are iteratively deleted. The cleaned rms are provided as is and should be taken with some care, especially if the number of sessions is small.