Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1228-310 (2026b, independent mode)

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

Right ascension: 187.6872191206933°
Declination: -31.3564749345811°
No. sessions: 8
No. delays: 242
Defining: No
RMS(α cos δ) = 2.8619 mas
RMS(δ) = 3.7100 mas
Variability ellipse semimajor axis = 3.8481 mas
Variability ellipse semiminor axis = 2.6734 mas
Variability ellipse position angle = -21.6 deg
Equivalent α-δ correlation = -0.25

Observed in only 8 session(s)

Quarterly time series for 1228-310 (2026b, 4 global solutions)

Data

Right ascension: 187.6872194104624°
Declination: -31.3564753440494°
No. sessions: 8
No. delays: 242
Defining: No
RMS(α cos δ) = 0.4413 mas
RMS(δ) = 1.6406 mas
Variability ellipse semimajor axis = 1.6407 mas
Variability ellipse semiminor axis = 0.4409 mas
Variability ellipse position angle = 0.6 deg
Equivalent α-δ correlation = 0.04

Observed in only 8 session(s)