Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1428+422 (2026b, independent mode)

Data - BVID - NED - MOJAVE - SIMBAD - PanSTARRS-1

Right ascension: 217.5989239733562°
Declination: 42.0768031881218°
No. sessions: 27
No. delays: 1264
Defining: No
RMS(α cos δ) = 21.9328 mas
RMS(δ) = 3.0413 mas
Variability ellipse semimajor axis = 22.2601 mas
Variability ellipse semiminor axis = 2.2834 mas
Variability ellipse position angle = 80.2 deg
Equivalent α-δ correlation = 1.26

Observed in only 27 session(s)

Quarterly time series for 1428+422 (2026b, 4 global solutions)

Data

Right ascension: 217.5989235062079°
Declination: 42.0768031185249°
No. sessions: 27
No. delays: 1264
Defining: No
RMS(α cos δ) = 0.2308 mas
RMS(δ) = 0.2927 mas
Variability ellipse semimajor axis = 0.2996 mas
Variability ellipse semiminor axis = 0.2219 mas
Variability ellipse position angle = -18.4 deg
Equivalent α-δ correlation = -0.18

Observed in only 27 session(s)