ivsopar.obspm.fr

Radio source coordinate time series

 

 

0639+098

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

Observed in only 3 session(s)

Right ascension: 100.4383252042321°
Declination: 9.7845357300950°
No. sessions: 3
No. delays: 18
Defining: No
RMS(α cos δ) = 4.7244 mas
RMS(δ) = 4.2012 mas
Cleaned No. sessions: 2
Cleaned RMS(α cos δ) = 1.6532 mas
Cleaned RMS(δ) = 1.7158 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.