Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1717+178 (2026b, independent mode)

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

Right ascension: 259.8043687203013°
Declination: 17.7517880672432°
No. sessions: 172
No. delays: 8655
Defining: Yes
RMS(α cos δ) = 7.6015 mas
RMS(δ) = 7.9627 mas
Variability ellipse semimajor axis = 10.2791 mas
Variability ellipse semiminor axis = 3.9404 mas
Variability ellipse position angle = -43.2 deg
Equivalent α-δ correlation = -0.74

Quarterly time series for 1717+178 (2026b, 4 global solutions)

Data

Right ascension: 259.8043686915440°
Declination: 17.7517880986673°
No. sessions: 169
No. delays: 8641
Defining: Yes
RMS(α cos δ) = 0.2043 mas
RMS(δ) = 0.2436 mas
Variability ellipse semimajor axis = 0.2443 mas
Variability ellipse semiminor axis = 0.2036 mas
Variability ellipse position angle = -7.4 deg
Equivalent α-δ correlation = -0.05