Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1520+437 (2025b, independent mode)

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

Right ascension: 230.4567359967315°
Declination: 43.6109123840389°
No. sessions: 454
No. delays: 20699
Defining: Yes
RMS(α cos δ) = 271.5649 mas
RMS(δ) = 320.3909 mas

Quarterly time series for 1520+437 (2025b, 4 global solutions)

Data

Right ascension: 230.4567245143929°
Declination: 43.6109078302953°
No. sessions: 433
No. delays: 18525
Defining: Yes
RMS(α cos δ) = 0.1897 mas
RMS(δ) = 0.2538 mas