Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 2253+417 (2026a, independent mode)

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

Right ascension: 343.9029494191098°
Declination: 42.0479257468967°
No. sessions: 58
No. delays: 2028
Defining: No
RMS(α cos δ) = 1.5611 mas
RMS(δ) = 1.5051 mas
Variability ellipse semimajor axis = 1.9644 mas
Variability ellipse semiminor axis = 0.9184 mas
Variability ellipse position angle = 46.6 deg
Equivalent α-δ correlation = 0.64

Quarterly time series for 2253+417 (2026a, 4 global solutions)

Data

Right ascension: 343.9029493337266°
Declination: 42.0479257091996°
No. sessions: 48
No. delays: 1640
Defining: No
RMS(α cos δ) = 0.1794 mas
RMS(δ) = 0.2321 mas
Variability ellipse semimajor axis = 0.2369 mas
Variability ellipse semiminor axis = 0.1730 mas
Variability ellipse position angle = -17.1 deg
Equivalent α-δ correlation = -0.18