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Radio source coordinate time series

 

 

2254+074

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

Right ascension: 344.3220964842074°
Declination: 7.7200840728974°
No. sessions: 127
No. delays: 4969
Defining: Yes
RMS(α cos δ) = 9.8415 mas
RMS(δ) = 2.3969 mas
Cleaned No. sessions: 85
Cleaned RMS(α cos δ) = 0.3135 mas
Cleaned RMS(δ) = 0.2704 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.