ivsopar.obspm.fr

Radio source coordinate time series

 

 

1518+045

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

Observed in only 2 session(s)

Right ascension: 230.3439316387883°
Declination: 4.3417045709422°
No. sessions: 2
No. delays: 79
Defining: No
RMS(α cos δ) = 0.0424 mas
RMS(δ) = 0.2005 mas
Cleaned No. sessions: 2
Cleaned RMS(α cos δ) = 0.0424 mas
Cleaned RMS(δ) = 0.2005 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.