Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1544+820 (2026b, independent mode)

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

Right ascension: 235.0661597521092°
Declination: 81.9182730580498°
No. sessions: 9
No. delays: 318
Defining: No
RMS(α cos δ) = 2.5208 mas
RMS(δ) = 0.9145 mas
Variability ellipse semimajor axis = 2.6047 mas
Variability ellipse semiminor axis = 0.6373 mas
Variability ellipse position angle = 74.9 deg
Equivalent α-δ correlation = 0.69

Observed in only 9 session(s)

Quarterly time series for 1544+820 (2026b, 4 global solutions)

Data

Right ascension: 235.0661617905842°
Declination: 81.9182730409817°
No. sessions: 9
No. delays: 318
Defining: No
RMS(α cos δ) = 1.2839 mas
RMS(δ) = 0.4458 mas
Variability ellipse semimajor axis = 1.2947 mas
Variability ellipse semiminor axis = 0.4136 mas
Variability ellipse position angle = -82.2 deg
Equivalent α-δ correlation = -0.35

Observed in only 9 session(s)