Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1504+377 (2026b, independent mode)

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

Right ascension: 226.5397462652755°
Declination: 37.5142022681653°
No. sessions: 531
No. delays: 27991
Defining: Yes
RMS(α cos δ) = 671.2160 mas
RMS(δ) = 261.7546 mas
Variability ellipse semimajor axis = 675.0560 mas
Variability ellipse semiminor axis = 251.6857 mas
Variability ellipse position angle = -83.4 deg
Equivalent α-δ correlation = -0.25

Quarterly time series for 1504+377 (2026b, 4 global solutions)

Data

Right ascension: 226.5397082377661°
Declination: 37.5142034729426°
No. sessions: 502
No. delays: 27948
Defining: Yes
RMS(α cos δ) = 0.1959 mas
RMS(δ) = 0.2320 mas
Variability ellipse semimajor axis = 0.2332 mas
Variability ellipse semiminor axis = 0.1945 mas
Variability ellipse position angle = 10.6 deg
Equivalent α-δ correlation = 0.07