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Radio source coordinate time series

 

 

0839+187

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

Right ascension: 130.5212256928403°
Declination: 18.5947196019982°
No. sessions: 36
No. delays: 1617
Defining: No
RMS(α cos δ) = 0.6615 mas
RMS(δ) = 0.6957 mas
Cleaned No. sessions: 33
Cleaned RMS(α cos δ) = 0.2777 mas
Cleaned RMS(δ) = 0.6144 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.