Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 226.5397374816796°
Declination: 37.5142025596494°
No. sessions: 538
No. delays: 30302
Defining: Yes
RMS(α cos δ) = 589.9316 mas
RMS(δ) = 230.7764 mas
Variability ellipse semimajor axis = 593.2163 mas
Variability ellipse semiminor axis = 222.1967 mas
Variability ellipse position angle = -83.4 deg
Equivalent α-δ correlation = -0.25

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

Data

Right ascension: 226.5397082406112°
Declination: 37.5142034795899°
No. sessions: 488
No. delays: 29174
Defining: Yes
RMS(α cos δ) = 0.1924 mas
RMS(δ) = 0.2221 mas
Variability ellipse semimajor axis = 0.2239 mas
Variability ellipse semiminor axis = 0.1903 mas
Variability ellipse position angle = 14.0 deg
Equivalent α-δ correlation = 0.08