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Radio source coordinate time series

 

 

1617+229

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

Right ascension: 244.8117691264485°
Declination: 22.7966252505247°
No. sessions: 297
No. delays: 11715
Defining: Yes
RMS(α cos δ) = 2.2343 mas
RMS(δ) = 1.0358 mas
Cleaned No. sessions: 274
Cleaned RMS(α cos δ) = 0.1652 mas
Cleaned RMS(δ) = 0.2090 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.