Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1212+171 (2026b, independent mode)

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

Right ascension: 183.7665419884479°
Declination: 16.9111330934659°
No. sessions: 153
No. delays: 5151
Defining: No
RMS(α cos δ) = 2071.3357 mas
RMS(δ) = 21273.0352 mas
Variability ellipse semimajor axis = 21482.2587 mas
Variability ellipse semiminor axis = 2157.5398 mas
Variability ellipse position angle = -7.9 deg
Equivalent α-δ correlation = -1.45

Quarterly time series for 1212+171 (2026b, 4 global solutions)

Data

Right ascension: 183.7665797887724°
Declination: 16.9105435624889°
No. sessions: 141
No. delays: 5106
Defining: No
RMS(α cos δ) = 0.2177 mas
RMS(δ) = 0.2255 mas
Variability ellipse semimajor axis = 0.2363 mas
Variability ellipse semiminor axis = 0.2060 mas
Variability ellipse position angle = 37.5 deg
Equivalent α-δ correlation = 0.13