Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1213-172 (2026b, independent mode)

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

Right ascension: 183.9441635376221°
Declination: -17.5297771899732°
No. sessions: 686
No. delays: 32970
Defining: No
RMS(α cos δ) = 73739.9480 mas
RMS(δ) = 31709.2602 mas
Variability ellipse semimajor axis = 79938.7613 mas
Variability ellipse semiminor axis = 7269.9073 mas
Variability ellipse position angle = 67.1 deg
Equivalent α-δ correlation = 0.97

Quarterly time series for 1213-172 (2026b, 4 global solutions)

Data

Right ascension: 183.9447990854269°
Declination: -17.5292786400068°
No. sessions: 654
No. delays: 32524
Defining: No
RMS(α cos δ) = 0.3090 mas
RMS(δ) = 0.2045 mas
Variability ellipse semimajor axis = 0.3097 mas
Variability ellipse semiminor axis = 0.2035 mas
Variability ellipse position angle = -84.9 deg
Equivalent α-δ correlation = -0.08