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Radio source coordinate time series

 

 

1806+456

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

Right ascension: 272.0911912073166°
Declination: 45.7057962491485°
No. sessions: 261
No. delays: 18603
Defining: No
RMS(α cos δ) = 0.4465 mas
RMS(δ) = 0.6505 mas
Cleaned No. sessions: 221
Cleaned RMS(α cos δ) = 0.1746 mas
Cleaned RMS(δ) = 0.2200 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.