Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1156-221 (2026a, independent mode)

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

Right ascension: 179.7969469288102°
Declination: -22.4769167543756°
No. sessions: 6
No. delays: 326
Defining: No
RMS(α cos δ) = 0.7241 mas
RMS(δ) = 1.2060 mas
Variability ellipse semimajor axis = 1.2672 mas
Variability ellipse semiminor axis = 0.6107 mas
Variability ellipse position angle = -20.5 deg
Equivalent α-δ correlation = -0.46

Observed in only 6 session(s)

Quarterly time series for 1156-221 (2026a, 4 global solutions)

Data

Right ascension: 179.7969469734051°
Declination: -22.4769168423052°
No. sessions: 6
No. delays: 326
Defining: No
RMS(α cos δ) = 0.3319 mas
RMS(δ) = 0.6961 mas
Variability ellipse semimajor axis = 0.7060 mas
Variability ellipse semiminor axis = 0.3103 mas
Variability ellipse position angle = -10.7 deg
Equivalent α-δ correlation = -0.32

Observed in only 6 session(s)