Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 275.2410363243363°
Declination: -25.4701621320613°
No. sessions: 32
No. delays: 1235
Defining: No
RMS(α cos δ) = 1.0035 mas
RMS(δ) = 2.0877 mas
Variability ellipse semimajor axis = 2.1815 mas
Variability ellipse semiminor axis = 0.7788 mas
Variability ellipse position angle = 18.0 deg
Equivalent α-δ correlation = 0.59

Observed in only 32 session(s)

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

Data

Right ascension: 275.2410362496326°
Declination: -25.4701622319491°
No. sessions: 31
No. delays: 1232
Defining: No
RMS(α cos δ) = 0.3117 mas
RMS(δ) = 1.0152 mas
Variability ellipse semimajor axis = 1.0213 mas
Variability ellipse semiminor axis = 0.2909 mas
Variability ellipse position angle = -6.5 deg
Equivalent α-δ correlation = -0.34

Observed in only 31 session(s)