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Radio source coordinate time series

 

 

0804+499

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

Right ascension: 122.1652762113064°
Declination: 49.8434807014282°
No. sessions: 1541
No. delays: 94515
Defining: Yes
RMS(α cos δ) = 0.9466 mas
RMS(δ) = 9.4479 mas
Cleaned No. sessions: 1419
Cleaned RMS(α cos δ) = 0.1294 mas
Cleaned RMS(δ) = 0.1438 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.