Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1637+166 (2026b, independent mode)

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

Right ascension: 249.9255711724660°
Declination: 16.5393772226187°
No. sessions: 4
No. delays: 423
Defining: No
RMS(α cos δ) = 1.8032 mas
RMS(δ) = 0.7282 mas
Variability ellipse semimajor axis = 1.8988 mas
Variability ellipse semiminor axis = 0.4200 mas
Variability ellipse position angle = -71.2 deg
Equivalent α-δ correlation = -0.79

Observed in only 4 session(s)

Quarterly time series for 1637+166 (2026b, 4 global solutions)

Data

Right ascension: 249.9255714609671°
Declination: 16.5393771580278°
No. sessions: 4
No. delays: 423
Defining: No
RMS(α cos δ) = 0.2198 mas
RMS(δ) = 0.4802 mas
Variability ellipse semimajor axis = 0.4808 mas
Variability ellipse semiminor axis = 0.2186 mas
Variability ellipse position angle = 3.0 deg
Equivalent α-δ correlation = 0.09

Observed in only 4 session(s)