Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1728+004 (2026a, independent mode)

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

Right ascension: 262.6458310742655°
Declination: 0.4107476455612°
No. sessions: 7
No. delays: 642
Defining: No
RMS(α cos δ) = 0.3750 mas
RMS(δ) = 0.4225 mas
Variability ellipse semimajor axis = 0.5213 mas
Variability ellipse semiminor axis = 0.2176 mas
Variability ellipse position angle = 40.1 deg
Equivalent α-δ correlation = 0.70

Observed in only 7 session(s)

Quarterly time series for 1728+004 (2026a, 4 global solutions)

Data

Right ascension: 262.6458311260778°
Declination: 0.4107476287566°
No. sessions: 8
No. delays: 674
Defining: No
RMS(α cos δ) = 0.1727 mas
RMS(δ) = 0.2263 mas
Variability ellipse semimajor axis = 0.2292 mas
Variability ellipse semiminor axis = 0.1689 mas
Variability ellipse position angle = 13.3 deg
Equivalent α-δ correlation = 0.14

Observed in only 8 session(s)