ivsopar.obspm.fr

Radio source coordinate time series

 

 

2121+460

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

Observed in only 5 session(s)

Right ascension: 320.8826185092088°
Declination: 46.2397112866766°
No. sessions: 5
No. delays: 302
Defining: No
RMS(α cos δ) = 0.3075 mas
RMS(δ) = 0.5057 mas
Cleaned No. sessions: 4
Cleaned RMS(α cos δ) = 0.3306 mas
Cleaned RMS(δ) = 0.1439 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.