Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1720+250 (2026b, independent mode)

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

Right ascension: 260.7207915072034°
Declination: 24.9763034006833°
No. sessions: 6
No. delays: 553
Defining: No
RMS(α cos δ) = 0.2670 mas
RMS(δ) = 0.7482 mas
Variability ellipse semimajor axis = 0.7566 mas
Variability ellipse semiminor axis = 0.2422 mas
Variability ellipse position angle = -9.0 deg
Equivalent α-δ correlation = -0.40

Observed in only 6 session(s)

Quarterly time series for 1720+250 (2026b, 4 global solutions)

Data

Right ascension: 260.7207915579016°
Declination: 24.9763034133201°
No. sessions: 6
No. delays: 553
Defining: No
RMS(α cos δ) = 0.0819 mas
RMS(δ) = 0.6952 mas
Variability ellipse semimajor axis = 0.6964 mas
Variability ellipse semiminor axis = 0.0708 mas
Variability ellipse position angle = -3.3 deg
Equivalent α-δ correlation = -0.50

Observed in only 6 session(s)