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Radio source coordinate time series

 

 

1623+578

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

Right ascension: 246.1033649594124°
Declination: 57.6878559067656°
No. sessions: 189
No. delays: 4122
Defining: No
RMS(α cos δ) = 2.2861 mas
RMS(δ) = 3.0220 mas
Cleaned No. sessions: 172
Cleaned RMS(α cos δ) = 0.4463 mas
Cleaned RMS(δ) = 0.4109 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.