Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1308+554 (2026b, independent mode)

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

Right ascension: 197.7633893894383°
Declination: 55.2319201031925°
No. sessions: 94
No. delays: 4008
Defining: No
RMS(α cos δ) = 317.1572 mas
RMS(δ) = 8382.4442 mas
Variability ellipse semimajor axis = 8390.4710 mas
Variability ellipse semiminor axis = 184.5135 mas
Variability ellipse position angle = 2.5 deg
Equivalent α-δ correlation = 1.16

Observed in only 94 session(s)

Quarterly time series for 1308+554 (2026b, 4 global solutions)

Data

Right ascension: 197.7633783986764°
Declination: 55.2317562669814°
No. sessions: 79
No. delays: 3961
Defining: No
RMS(α cos δ) = 0.1884 mas
RMS(δ) = 0.2912 mas
Variability ellipse semimajor axis = 0.3072 mas
Variability ellipse semiminor axis = 0.1609 mas
Variability ellipse position angle = -21.9 deg
Equivalent α-δ correlation = -0.43

Observed in only 79 session(s)