Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1855+031 (2026b, independent mode)

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

Right ascension: 284.5098028335298°
Declination: 3.2211944978208°
No. sessions: 11
No. delays: 140
Defining: No
RMS(α cos δ) = 4.1018 mas
RMS(δ) = 2.2234 mas
Variability ellipse semimajor axis = 4.4696 mas
Variability ellipse semiminor axis = 1.3384 mas
Variability ellipse position angle = -65.3 deg
Equivalent α-δ correlation = -0.75

Observed in only 11 session(s)

Quarterly time series for 1855+031 (2026b, 4 global solutions)

Data

Right ascension: 284.5098032724800°
Declination: 3.2211946105354°
No. sessions: 11
No. delays: 140
Defining: No
RMS(α cos δ) = 0.7114 mas
RMS(δ) = 1.7959 mas
Variability ellipse semimajor axis = 1.8666 mas
Variability ellipse semiminor axis = 0.4975 mas
Variability ellipse position angle = -16.4 deg
Equivalent α-δ correlation = -0.69

Observed in only 11 session(s)