Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1811+317 (2026b, independent mode)

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

Right ascension: 273.3966785816911°
Declination: 31.7382275973122°
No. sessions: 3
No. delays: 233
Defining: No
RMS(α cos δ) = 1.1661 mas
RMS(δ) = 1.5949 mas
Variability ellipse semimajor axis = 1.8945 mas
Variability ellipse semiminor axis = 0.5605 mas
Variability ellipse position angle = -34.4 deg
Equivalent α-δ correlation = -0.82

Observed in only 3 session(s)

Quarterly time series for 1811+317 (2026b, 4 global solutions)

Data

Right ascension: 273.3966784136076°
Declination: 31.7382277268478°
No. sessions: 3
No. delays: 233
Defining: No
RMS(α cos δ) = 0.1655 mas
RMS(δ) = 0.1408 mas
Variability ellipse semimajor axis = 0.1963 mas
Variability ellipse semiminor axis = 0.0931 mas
Variability ellipse position angle = -52.3 deg
Equivalent α-δ correlation = -0.62

Observed in only 3 session(s)