Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1307+121 (2026b, independent mode)

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

Right ascension: 197.3913854419408°
Declination: 11.9068202624090°
No. sessions: 73
No. delays: 1399
Defining: No
RMS(α cos δ) = 5.6496 mas
RMS(δ) = 1.6528 mas
Variability ellipse semimajor axis = 5.7278 mas
Variability ellipse semiminor axis = 1.3571 mas
Variability ellipse position angle = -80.2 deg
Equivalent α-δ correlation = -0.55

Observed in only 73 session(s)

Quarterly time series for 1307+121 (2026b, 4 global solutions)

Data

Right ascension: 197.3913852475193°
Declination: 11.9068202953462°
No. sessions: 61
No. delays: 1363
Defining: No
RMS(α cos δ) = 0.2711 mas
RMS(δ) = 0.3713 mas
Variability ellipse semimajor axis = 0.3803 mas
Variability ellipse semiminor axis = 0.2584 mas
Variability ellipse position angle = 17.1 deg
Equivalent α-δ correlation = 0.22

Observed in only 61 session(s)