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Radio source coordinate time series

 

 

1842+681

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

Right ascension: 280.6401718129537°
Declination: 68.1570074668036°
No. sessions: 80
No. delays: 6223
Defining: Yes
RMS(α cos δ) = 10.6298 mas
RMS(δ) = 3.7200 mas
Cleaned No. sessions: 24
Cleaned RMS(α cos δ) = 0.7377 mas
Cleaned RMS(δ) = 0.5815 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.