Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1556-245 (2026b, independent mode)

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

Right ascension: 239.9225340685589°
Declination: -24.7107926598568°
No. sessions: 67
No. delays: 2772
Defining: Yes
RMS(α cos δ) = 598.4852 mas
RMS(δ) = 1980.8908 mas
Variability ellipse semimajor axis = 2007.2535 mas
Variability ellipse semiminor axis = 503.0372 mas
Variability ellipse position angle = -9.6 deg
Equivalent α-δ correlation = -0.52

Observed in only 67 session(s)

Quarterly time series for 1556-245 (2026b, 4 global solutions)

Data

Right ascension: 239.9225379921478°
Declination: -24.7107866961182°
No. sessions: 59
No. delays: 2748
Defining: Yes
RMS(α cos δ) = 0.3686 mas
RMS(δ) = 0.5190 mas
Variability ellipse semimajor axis = 0.5683 mas
Variability ellipse semiminor axis = 0.2868 mas
Variability ellipse position angle = 28.1 deg
Equivalent α-δ correlation = 0.52

Observed in only 59 session(s)