Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1831+050 (2026b, independent mode)

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

Right ascension: 278.6137975758344°
Declination: 5.1011012995494°
No. sessions: 7
No. delays: 604
Defining: No
RMS(α cos δ) = 0.2734 mas
RMS(δ) = 0.6245 mas
Variability ellipse semimajor axis = 0.6588 mas
Variability ellipse semiminor axis = 0.1753 mas
Variability ellipse position angle = -19.2 deg
Equivalent α-δ correlation = -0.74

Observed in only 7 session(s)

Quarterly time series for 1831+050 (2026b, 4 global solutions)

Data

Right ascension: 278.6137975997167°
Declination: 5.1011012753907°
No. sessions: 7
No. delays: 604
Defining: No
RMS(α cos δ) = 0.1634 mas
RMS(δ) = 0.3656 mas
Variability ellipse semimajor axis = 0.3823 mas
Variability ellipse semiminor axis = 0.1192 mas
Variability ellipse position angle = -17.9 deg
Equivalent α-δ correlation = -0.65

Observed in only 7 session(s)