ivsopar.obspm.fr

Radio source coordinate time series

 

 

1845+797

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

Right ascension: 280.5374583459337°
Declination: 79.7714245383541°
No. sessions: 32
No. delays: 752
Defining: No
RMS(α cos δ) = 28.7931 mas
RMS(δ) = 8.5065 mas
Cleaned No. sessions: 27
Cleaned RMS(α cos δ) = 0.5796 mas
Cleaned RMS(δ) = 0.5395 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.