Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1806-458 (2026a, independent mode)

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

Right ascension: 272.4911323977618°
Declination: -45.8780594251046°
No. sessions: 85
No. delays: 1179
Defining: Yes
RMS(α cos δ) = 2.4508 mas
RMS(δ) = 3.7063 mas
Variability ellipse semimajor axis = 3.7335 mas
Variability ellipse semiminor axis = 2.4091 mas
Variability ellipse position angle = -9.0 deg
Equivalent α-δ correlation = -0.14

Quarterly time series for 1806-458 (2026a, 4 global solutions)

Data

Right ascension: 272.4911323126901°
Declination: -45.8780593989798°
No. sessions: 73
No. delays: 1102
Defining: Yes
RMS(α cos δ) = 0.7383 mas
RMS(δ) = 1.3001 mas
Variability ellipse semimajor axis = 1.3272 mas
Variability ellipse semiminor axis = 0.6885 mas
Variability ellipse position angle = 13.5 deg
Equivalent α-δ correlation = 0.31