ivsopar.obspm.fr

Radio source coordinate time series

 

 

1421+122

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

Observed in only 3 session(s)

Right ascension: 215.8754191447897°
Declination: 11.9975677005472°
No. sessions: 3
No. delays: 58
Defining: No
RMS(α cos δ) = 1.5761 mas
RMS(δ) = 0.9644 mas
Cleaned No. sessions: 2
Cleaned RMS(α cos δ) = 0.3453 mas
Cleaned RMS(δ) = 0.3092 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.