Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1634+628 (2026b, independent mode)

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

Right ascension: 248.6408594346790°
Declination: 62.7599714075513°
No. sessions: 9
No. delays: 285
Defining: No
RMS(α cos δ) = 4.6928 mas
RMS(δ) = 1.1685 mas
Variability ellipse semimajor axis = 4.7165 mas
Variability ellipse semiminor axis = 1.0689 mas
Variability ellipse position angle = 84.1 deg
Equivalent α-δ correlation = 0.39

Observed in only 9 session(s)

Quarterly time series for 1634+628 (2026b, 4 global solutions)

Data

Right ascension: 248.6408601522178°
Declination: 62.7599714194384°
No. sessions: 9
No. delays: 285
Defining: No
RMS(α cos δ) = 2.1136 mas
RMS(δ) = 1.6961 mas
Variability ellipse semimajor axis = 2.1149 mas
Variability ellipse semiminor axis = 1.6944 mas
Variability ellipse position angle = 86.6 deg
Equivalent α-δ correlation = 0.03

Observed in only 9 session(s)