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Radio source coordinate time series

 

 

0747+185

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

Right ascension: 117.5013747968086°
Declination: 18.3865019973027°
No. sessions: 54
No. delays: 1082
Defining: No
RMS(α cos δ) = 0.4239 mas
RMS(δ) = 0.4413 mas
Cleaned No. sessions: 50
Cleaned RMS(α cos δ) = 0.2585 mas
Cleaned RMS(δ) = 0.3173 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.