Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1550+789 (2026b, independent mode)

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

Right ascension: 237.1561265439318°
Declination: 78.7573696926793°
No. sessions: 6
No. delays: 426
Defining: No
RMS(α cos δ) = 0.2737 mas
RMS(δ) = 0.8069 mas
Variability ellipse semimajor axis = 0.8337 mas
Variability ellipse semiminor axis = 0.1762 mas
Variability ellipse position angle = 14.8 deg
Equivalent α-δ correlation = 0.75

Observed in only 6 session(s)

Quarterly time series for 1550+789 (2026b, 4 global solutions)

Data

Right ascension: 237.1561269741963°
Declination: 78.7573696290841°
No. sessions: 6
No. delays: 426
Defining: No
RMS(α cos δ) = 0.2020 mas
RMS(δ) = 0.2073 mas
Variability ellipse semimajor axis = 0.2096 mas
Variability ellipse semiminor axis = 0.1996 mas
Variability ellipse position angle = -29.3 deg
Equivalent α-δ correlation = -0.04

Observed in only 6 session(s)