Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1658-189 (2026a, independent mode)

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

Right ascension: 255.3620589136752°
Declination: -19.0587705044797°
No. sessions: 5
No. delays: 302
Defining: No
RMS(α cos δ) = 0.3875 mas
RMS(δ) = 0.6984 mas
Variability ellipse semimajor axis = 0.7768 mas
Variability ellipse semiminor axis = 0.1859 mas
Variability ellipse position angle = -26.7 deg
Equivalent α-δ correlation = -0.85

Observed in only 5 session(s)

Quarterly time series for 1658-189 (2026a, 4 global solutions)

Data

Right ascension: 255.3620589268488°
Declination: -19.0587704413213°
No. sessions: 6
No. delays: 331
Defining: No
RMS(α cos δ) = 0.1690 mas
RMS(δ) = 0.3475 mas
Variability ellipse semimajor axis = 0.3615 mas
Variability ellipse semiminor axis = 0.1363 mas
Variability ellipse position angle = -17.3 deg
Equivalent α-δ correlation = -0.54

Observed in only 6 session(s)