Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1501+481 (2026b, independent mode)

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

Right ascension: 225.8532726672333°
Declination: 47.9749513422531°
No. sessions: 4
No. delays: 163
Defining: No
RMS(α cos δ) = 0.7650 mas
RMS(δ) = 0.4282 mas
Variability ellipse semimajor axis = 0.8090 mas
Variability ellipse semiminor axis = 0.3377 mas
Variability ellipse position angle = 69.0 deg
Equivalent α-δ correlation = 0.55

Observed in only 4 session(s)

Quarterly time series for 1501+481 (2026b, 4 global solutions)

Data

Right ascension: 225.8532727022346°
Declination: 47.9749513383343°
No. sessions: 4
No. delays: 163
Defining: No
RMS(α cos δ) = 0.2868 mas
RMS(δ) = 0.1586 mas
Variability ellipse semimajor axis = 0.2963 mas
Variability ellipse semiminor axis = 0.1399 mas
Variability ellipse position angle = 73.4 deg
Equivalent α-δ correlation = 0.41

Observed in only 4 session(s)