Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1657+265 (2026b, independent mode)

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

Right ascension: 254.8506227557922°
Declination: 26.4935952782521°
No. sessions: 15
No. delays: 659
Defining: No
RMS(α cos δ) = 0.6734 mas
RMS(δ) = 0.4202 mas
Variability ellipse semimajor axis = 0.6805 mas
Variability ellipse semiminor axis = 0.4086 mas
Variability ellipse position angle = 79.6 deg
Equivalent α-δ correlation = 0.19

Observed in only 15 session(s)

Quarterly time series for 1657+265 (2026b, 4 global solutions)

Data

Right ascension: 254.8506227345719°
Declination: 26.4935953164730°
No. sessions: 14
No. delays: 656
Defining: No
RMS(α cos δ) = 0.2857 mas
RMS(δ) = 0.1475 mas
Variability ellipse semimajor axis = 0.2956 mas
Variability ellipse semiminor axis = 0.1265 mas
Variability ellipse position angle = 73.4 deg
Equivalent α-δ correlation = 0.46

Observed in only 14 session(s)