ivsopar.obspm.fr

Radio source coordinate time series

 

 

2022+171

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

Observed in only 4 session(s)

Right ascension: 306.2356808604507°
Declination: 17.3036659277476°
No. sessions: 4
No. delays: 216
Defining: No
RMS(α cos δ) = 1.5343 mas
RMS(δ) = 0.5349 mas
Cleaned No. sessions: 2
Cleaned RMS(α cos δ) = 0.1113 mas
Cleaned RMS(δ) = 0.3307 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.