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Radio source coordinate time series

 

 

1557+032

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

Right ascension: 239.8790522998281°
Declination: 3.0800699386161°
No. sessions: 73
No. delays: 2099
Defining: Yes
RMS(α cos δ) = 3.2973 mas
RMS(δ) = 15.6366 mas
Cleaned No. sessions: 12
Cleaned RMS(α cos δ) = 0.7272 mas
Cleaned RMS(δ) = 2.5427 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.