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Radio source coordinate time series

 

 

0109+224

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

Right ascension: 18.0242695687954°
Declination: 22.7441077656417°
No. sessions: 115
No. delays: 4708
Defining: Yes
RMS(α cos δ) = 3.0707 mas
RMS(δ) = 12.6603 mas
Cleaned No. sessions: 57
Cleaned RMS(α cos δ) = 0.4826 mas
Cleaned RMS(δ) = 0.7953 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.