Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1858-255 (2026b, independent mode)

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

Right ascension: 285.3838598162190°
Declination: -25.4706190126865°
No. sessions: 10
No. delays: 484
Defining: No
RMS(α cos δ) = 0.4333 mas
RMS(δ) = 1.2018 mas
Variability ellipse semimajor axis = 1.2067 mas
Variability ellipse semiminor axis = 0.4194 mas
Variability ellipse position angle = 5.5 deg
Equivalent α-δ correlation = 0.24

Observed in only 10 session(s)

Quarterly time series for 1858-255 (2026b, 4 global solutions)

Data

Right ascension: 285.3838598111957°
Declination: -25.4706190191925°
No. sessions: 10
No. delays: 484
Defining: No
RMS(α cos δ) = 0.1852 mas
RMS(δ) = 0.4616 mas
Variability ellipse semimajor axis = 0.4758 mas
Variability ellipse semiminor axis = 0.1449 mas
Variability ellipse position angle = -14.7 deg
Equivalent α-δ correlation = -0.59

Observed in only 10 session(s)