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Radio source coordinate time series

 

 

1520+437

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

Right ascension: 230.4567245445797°
Declination: 43.6109078488979°
No. sessions: 293
No. delays: 8775
Defining: Yes
RMS(α cos δ) = 1.1091 mas
RMS(δ) = 0.9174 mas
Cleaned No. sessions: 267
Cleaned RMS(α cos δ) = 0.2160 mas
Cleaned RMS(δ) = 0.3256 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.