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Radio source coordinate time series

 

 

1257+145

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

Right ascension: 195.0871617072298°
Declination: 14.2884809550384°
No. sessions: 39
No. delays: 724
Defining: No
RMS(α cos δ) = 0.3777 mas
RMS(δ) = 0.6039 mas
Cleaned No. sessions: 36
Cleaned RMS(α cos δ) = 0.3814 mas
Cleaned RMS(δ) = 0.5063 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.