Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 285.2751046961748°
Declination: -17.6447564066050°
No. sessions: 6
No. delays: 318
Defining: No
RMS(α cos δ) = 0.3650 mas
RMS(δ) = 2.5849 mas
Variability ellipse semimajor axis = 2.5864 mas
Variability ellipse semiminor axis = 0.3539 mas
Variability ellipse position angle = 1.9 deg
Equivalent α-δ correlation = 0.24

Observed in only 6 session(s)

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

Data

Right ascension: 285.2751047171352°
Declination: -17.6447568346680°
No. sessions: 6
No. delays: 318
Defining: No
RMS(α cos δ) = 0.2335 mas
RMS(δ) = 0.3376 mas
Variability ellipse semimajor axis = 0.3489 mas
Variability ellipse semiminor axis = 0.2163 mas
Variability ellipse position angle = -18.7 deg
Equivalent α-δ correlation = -0.29

Observed in only 6 session(s)