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Radio source coordinate time series

 

 

1221+809

Data
NED - MOJAVE

Right ascension: 185.9187238815953°
Declination: 80.6678723451183°
No. sessions: 81
No. delays: 4684
Defining: Yes
RMS(α cos δ) = 0.1169 mas
RMS(δ) = 0.1459 mas
Cleaned No. sessions: 79
Cleaned RMS(α cos δ) = 0.1131 mas
Cleaned RMS(δ) = 0.1152 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.