Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1803+172 (2026b, independent mode)

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

Right ascension: 271.4476513943258°
Declination: 17.2488672612492°
No. sessions: 5
No. delays: 507
Defining: No
RMS(α cos δ) = 0.3953 mas
RMS(δ) = 0.9804 mas
Variability ellipse semimajor axis = 1.0113 mas
Variability ellipse semiminor axis = 0.3079 mas
Variability ellipse position angle = 14.9 deg
Equivalent α-δ correlation = 0.60

Observed in only 5 session(s)

Quarterly time series for 1803+172 (2026b, 4 global solutions)

Data

Right ascension: 271.4476514119123°
Declination: 17.2488672519397°
No. sessions: 5
No. delays: 507
Defining: No
RMS(α cos δ) = 0.1066 mas
RMS(δ) = 0.1640 mas
Variability ellipse semimajor axis = 0.1682 mas
Variability ellipse semiminor axis = 0.0998 mas
Variability ellipse position angle = 16.0 deg
Equivalent α-δ correlation = 0.28

Observed in only 5 session(s)