Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1809-315 (2026b, independent mode)

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

Right ascension: 273.0649732667939°
Declination: -31.5491034110913°
No. sessions: 9
No. delays: 115
Defining: No
RMS(α cos δ) = 5.7240 mas
RMS(δ) = 20.4100 mas
Variability ellipse semimajor axis = 20.9886 mas
Variability ellipse semiminor axis = 2.9684 mas
Variability ellipse position angle = -13.6 deg
Equivalent α-δ correlation = -0.85

Observed in only 9 session(s)

Quarterly time series for 1809-315 (2026b, 4 global solutions)

Data

Right ascension: 273.0649729938242°
Declination: -31.5491020768714°
No. sessions: 9
No. delays: 115
Defining: No
RMS(α cos δ) = 3.0541 mas
RMS(δ) = 9.4864 mas
Variability ellipse semimajor axis = 9.5518 mas
Variability ellipse semiminor axis = 2.8430 mas
Variability ellipse position angle = 7.0 deg
Equivalent α-δ correlation = 0.35

Observed in only 9 session(s)