Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 0428+172 (2026b, independent mode)

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

Right ascension: 67.7493550107149°
Declination: 17.3876902137034°
No. sessions: 5
No. delays: 336
Defining: No
RMS(α cos δ) = 0.4231 mas
RMS(δ) = 0.2394 mas
Variability ellipse semimajor axis = 0.4594 mas
Variability ellipse semiminor axis = 0.1590 mas
Variability ellipse position angle = -65.4 deg
Equivalent α-δ correlation = -0.69

Observed in only 5 session(s)

Quarterly time series for 0428+172 (2026b, 4 global solutions)

Data

Right ascension: 67.7493549229789°
Declination: 17.3876903589511°
No. sessions: 5
No. delays: 336
Defining: No
RMS(α cos δ) = 0.1859 mas
RMS(δ) = 0.2106 mas
Variability ellipse semimajor axis = 0.2472 mas
Variability ellipse semiminor axis = 0.1334 mas
Variability ellipse position angle = -38.4 deg
Equivalent α-δ correlation = -0.54

Observed in only 5 session(s)