Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1657-298 (2026b, independent mode)

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

Right ascension: 255.2910997408360°
Declination: -29.9112447716398°
No. sessions: 8
No. delays: 68
Defining: No
RMS(α cos δ) = 126.6850 mas
RMS(δ) = 151.1945 mas
Variability ellipse semimajor axis = 207.8051 mas
Variability ellipse semiminor axis = 65.3764 mas
Variability ellipse position angle = -40.8 deg
Equivalent α-δ correlation = -1.23

Observed in only 8 session(s)

Quarterly time series for 1657-298 (2026b, 4 global solutions)

Data

Right ascension: 255.2910938086475°
Declination: -29.9112447910658°
No. sessions: 7
No. delays: 65
Defining: No
RMS(α cos δ) = 9.0387 mas
RMS(δ) = 16.0117 mas
Variability ellipse semimajor axis = 16.9722 mas
Variability ellipse semiminor axis = 7.0721 mas
Variability ellipse position angle = -21.3 deg
Equivalent α-δ correlation = -0.56

Observed in only 7 session(s)