Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 179.7969469291938°
Declination: -22.4769167542672°
No. sessions: 6
No. delays: 326
Defining: No
RMS(α cos δ) = 0.7241 mas
RMS(δ) = 1.2065 mas
Variability ellipse semimajor axis = 1.2676 mas
Variability ellipse semiminor axis = 0.6110 mas
Variability ellipse position angle = -20.4 deg
Equivalent α-δ correlation = -0.46

Observed in only 6 session(s)

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

Data

Right ascension: 179.7969469802847°
Declination: -22.4769168520415°
No. sessions: 6
No. delays: 326
Defining: No
RMS(α cos δ) = 0.3067 mas
RMS(δ) = 0.6791 mas
Variability ellipse semimajor axis = 0.6909 mas
Variability ellipse semiminor axis = 0.2790 mas
Variability ellipse position angle = -11.6 deg
Equivalent α-δ correlation = -0.38

Observed in only 6 session(s)