ivsopar.obspm.fr

Radio source coordinate time series

 

1809+170 Data SIMBAD - NED - LQAC MOJAVE - Astrogeo - BVID Aladin - SDSS

Observed in only 2 session(s)

Right ascension: 272.9299311223784° Declination: 17.0825715633118° No. sessions: 2 No. delays: 171 Defining: No RMS(α cos δ) = 0.0302 mas RMS(δ) = 0.0594 mas Cleaned No. sessions: 2 Cleaned RMS(α cos δ) = 0.0302 mas Cleaned RMS(δ) = 0.0594 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.