Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1641+173 (2026b, independent mode)

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

Right ascension: 250.9524989046638°
Declination: 17.2637310787192°
No. sessions: 5
No. delays: 276
Defining: No
RMS(α cos δ) = 0.2641 mas
RMS(δ) = 0.3871 mas
Variability ellipse semimajor axis = 0.4247 mas
Variability ellipse semiminor axis = 0.1982 mas
Variability ellipse position angle = 27.7 deg
Equivalent α-δ correlation = 0.57

Observed in only 5 session(s)

Quarterly time series for 1641+173 (2026b, 4 global solutions)

Data

Right ascension: 250.9524988422524°
Declination: 17.2637310636046°
No. sessions: 5
No. delays: 276
Defining: No
RMS(α cos δ) = 0.1588 mas
RMS(δ) = 0.1527 mas
Variability ellipse semimajor axis = 0.1707 mas
Variability ellipse semiminor axis = 0.1393 mas
Variability ellipse position angle = 50.6 deg
Equivalent α-δ correlation = 0.20

Observed in only 5 session(s)