ivsopar.obspm.fr

Radio source coordinate time series

 

 

1908+484

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

Right ascension: 287.4440115485863°
Declination: 48.5755057349093°
No. sessions: 21
No. delays: 612
Defining: No
RMS(α cos δ) = 1.0639 mas
RMS(δ) = 0.7591 mas
Cleaned No. sessions: 16
Cleaned RMS(α cos δ) = 0.6624 mas
Cleaned RMS(δ) = 0.6953 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.