Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1817-254 (2026a, independent mode)

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

Right ascension: 275.2410363218870°
Declination: -25.4701621365837°
No. sessions: 31
No. delays: 1130
Defining: No
RMS(α cos δ) = 1.0130 mas
RMS(δ) = 2.1049 mas
Variability ellipse semimajor axis = 2.1996 mas
Variability ellipse semiminor axis = 0.7864 mas
Variability ellipse position angle = 18.1 deg
Equivalent α-δ correlation = 0.58

Observed in only 31 session(s)

Quarterly time series for 1817-254 (2026a, 4 global solutions)

Data

Right ascension: 275.2410362335071°
Declination: -25.4701622781862°
No. sessions: 31
No. delays: 1232
Defining: No
RMS(α cos δ) = 0.2531 mas
RMS(δ) = 1.2101 mas
Variability ellipse semimajor axis = 1.2107 mas
Variability ellipse semiminor axis = 0.2504 mas
Variability ellipse position angle = -1.7 deg
Equivalent α-δ correlation = -0.14

Observed in only 31 session(s)