Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1633+382 (2026b, independent mode)

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

Right ascension: 248.8145540481520°
Declination: 38.1345835122866°
No. sessions: 612
No. delays: 23804
Defining: No
RMS(α cos δ) = 8.0375 mas
RMS(δ) = 13.7615 mas
Variability ellipse semimajor axis = 15.8912 mas
Variability ellipse semiminor axis = 1.2031 mas
Variability ellipse position angle = 30.1 deg
Equivalent α-δ correlation = 0.98

Quarterly time series for 1633+382 (2026b, 4 global solutions)

Data

Right ascension: 248.8145540964182°
Declination: 38.1345834968525°
No. sessions: 578
No. delays: 24161
Defining: No
RMS(α cos δ) = 0.2548 mas
RMS(δ) = 0.8831 mas
Variability ellipse semimajor axis = 0.8871 mas
Variability ellipse semiminor axis = 0.2404 mas
Variability ellipse position angle = -5.6 deg
Equivalent α-δ correlation = -0.32