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Radio source coordinate time series

 

 

0237+040

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

Right ascension: 39.9635960549380°
Declination: 4.2726144250310°
No. sessions: 39
No. delays: 1150
Defining: No
RMS(α cos δ) = 0.3427 mas
RMS(δ) = 0.4831 mas
Cleaned No. sessions: 38
Cleaned RMS(α cos δ) = 0.3696 mas
Cleaned RMS(δ) = 0.4362 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.