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Radio source coordinate time series

 

 

2251+158

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

Right ascension: 343.4906164430234°
Declination: 16.1482113241459°
No. sessions: 1261
No. delays: 36258
Defining: No
RMS(α cos δ) = 1.4074 mas
RMS(δ) = 3.6275 mas
Cleaned No. sessions: 1095
Cleaned RMS(α cos δ) = 0.7252 mas
Cleaned RMS(δ) = 1.6171 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.