Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1858-177 (2026a, independent mode)

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

Right ascension: 285.2751046986796°
Declination: -17.6447564066891°
No. sessions: 6
No. delays: 318
Defining: No
RMS(α cos δ) = 0.3714 mas
RMS(δ) = 2.5873 mas
Variability ellipse semimajor axis = 2.5887 mas
Variability ellipse semiminor axis = 0.3616 mas
Variability ellipse position angle = 1.8 deg
Equivalent α-δ correlation = 0.23

Observed in only 6 session(s)

Quarterly time series for 1858-177 (2026a, 4 global solutions)

Data

Right ascension: 285.2751047153279°
Declination: -17.6447568355297°
No. sessions: 6
No. delays: 318
Defining: No
RMS(α cos δ) = 0.2139 mas
RMS(δ) = 0.3306 mas
Variability ellipse semimajor axis = 0.3484 mas
Variability ellipse semiminor axis = 0.1834 mas
Variability ellipse position angle = -21.8 deg
Equivalent α-δ correlation = -0.43

Observed in only 6 session(s)