Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1644-193 (2026b, independent mode)

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

Right ascension: 251.9740764539412°
Declination: -19.4387350769467°
No. sessions: 8
No. delays: 375
Defining: No
RMS(α cos δ) = 0.8157 mas
RMS(δ) = 1.2289 mas
Variability ellipse semimajor axis = 1.2292 mas
Variability ellipse semiminor axis = 0.8152 mas
Variability ellipse position angle = -1.7 deg
Equivalent α-δ correlation = -0.03

Observed in only 8 session(s)

Quarterly time series for 1644-193 (2026b, 4 global solutions)

Data

Right ascension: 251.9740764418696°
Declination: -19.4387349570820°
No. sessions: 8
No. delays: 375
Defining: No
RMS(α cos δ) = 0.3550 mas
RMS(δ) = 0.7087 mas
Variability ellipse semimajor axis = 0.7352 mas
Variability ellipse semiminor axis = 0.2962 mas
Variability ellipse position angle = -16.9 deg
Equivalent α-δ correlation = -0.50

Observed in only 8 session(s)