Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1813+031 (2026a, independent mode)

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

Right ascension: 274.0216830063504°
Declination: 3.1524101091087°
No. sessions: 6
No. delays: 358
Defining: No
RMS(α cos δ) = 0.2750 mas
RMS(δ) = 0.5529 mas
Variability ellipse semimajor axis = 0.5536 mas
Variability ellipse semiminor axis = 0.2736 mas
Variability ellipse position angle = -3.3 deg
Equivalent α-δ correlation = -0.09

Observed in only 6 session(s)

Quarterly time series for 1813+031 (2026a, 4 global solutions)

Data

Right ascension: 274.0216830581364°
Declination: 3.1524100532123°
No. sessions: 6
No. delays: 358
Defining: No
RMS(α cos δ) = 0.2699 mas
RMS(δ) = 0.3917 mas
Variability ellipse semimajor axis = 0.4155 mas
Variability ellipse semiminor axis = 0.2315 mas
Variability ellipse position angle = 23.7 deg
Equivalent α-δ correlation = 0.41

Observed in only 6 session(s)