Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 0556+238 (2026a, independent mode)

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

Right ascension: 89.8834715231198°
Declination: 23.8983129902798°
No. sessions: 901
No. delays: 27333
Defining: Yes
RMS(α cos δ) = 16.2434 mas
RMS(δ) = 3.8088 mas
Variability ellipse semimajor axis = 16.2438 mas
Variability ellipse semiminor axis = 3.8071 mas
Variability ellipse position angle = -89.5 deg
Equivalent α-δ correlation = -0.03

Quarterly time series for 0556+238 (2026a, 4 global solutions)

Data

Right ascension: 89.8834713723708°
Declination: 23.8983129817521°
No. sessions: 817
No. delays: 26682
Defining: Yes
RMS(α cos δ) = 0.1788 mas
RMS(δ) = 0.3096 mas
Variability ellipse semimajor axis = 0.3114 mas
Variability ellipse semiminor axis = 0.1757 mas
Variability ellipse position angle = 7.3 deg
Equivalent α-δ correlation = 0.15