Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1637+826 (2026b, independent mode)

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

Right ascension: 248.1332218266149°
Declination: 82.5378933350858°
No. sessions: 403
No. delays: 18167
Defining: No
RMS(α cos δ) = 63.7233 mas
RMS(δ) = 371.6742 mas
Variability ellipse semimajor axis = 371.6744 mas
Variability ellipse semiminor axis = 63.7222 mas
Variability ellipse position angle = -0.0 deg
Equivalent α-δ correlation = -0.01

Quarterly time series for 1637+826 (2026b, 4 global solutions)

Data

Right ascension: 248.1332080541931°
Declination: 82.5378888705366°
No. sessions: 377
No. delays: 18059
Defining: No
RMS(α cos δ) = 0.2062 mas
RMS(δ) = 0.1606 mas
Variability ellipse semimajor axis = 0.2179 mas
Variability ellipse semiminor axis = 0.1445 mas
Variability ellipse position angle = -64.4 deg
Equivalent α-δ correlation = -0.31