ivsopar.obspm.fr

Radio source coordinate time series

 

 

1922+155

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

Observed in only 4 session(s)

Right ascension: 291.1643993613816°
Declination: 15.6788727430474°
No. sessions: 4
No. delays: 436
Defining: No
RMS(α cos δ) = 1.2829 mas
RMS(δ) = 1.0232 mas
Cleaned No. sessions: 2
Cleaned RMS(α cos δ) = 1.6008 mas
Cleaned RMS(δ) = 1.3314 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.