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Radio source coordinate time series

 

 

1647-296

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

Right ascension: 252.6647671127010°
Declination: -29.7297097147102°
No. sessions: 41
No. delays: 336
Defining: No
RMS(α cos δ) = 0.5026 mas
RMS(δ) = 0.4712 mas
Cleaned No. sessions: 39
Cleaned RMS(α cos δ) = 0.4854 mas
Cleaned RMS(δ) = 0.3935 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.