Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1538-180 (2026b, independent mode)

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

Right ascension: 235.3373664912854°
Declination: -18.2558666230239°
No. sessions: 6
No. delays: 277
Defining: No
RMS(α cos δ) = 0.3687 mas
RMS(δ) = 1.3881 mas
Variability ellipse semimajor axis = 1.4149 mas
Variability ellipse semiminor axis = 0.2470 mas
Variability ellipse position angle = -11.3 deg
Equivalent α-δ correlation = -0.73

Observed in only 6 session(s)

Quarterly time series for 1538-180 (2026b, 4 global solutions)

Data

Right ascension: 235.3373666744880°
Declination: -18.2558670653676°
No. sessions: 6
No. delays: 277
Defining: No
RMS(α cos δ) = 0.1542 mas
RMS(δ) = 0.2801 mas
Variability ellipse semimajor axis = 0.2893 mas
Variability ellipse semiminor axis = 0.1362 mas
Variability ellipse position angle = -16.4 deg
Equivalent α-δ correlation = -0.41

Observed in only 6 session(s)