Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1800+440 (2025b, independent mode)

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

Right ascension: 270.3846664954030°
Declination: 44.0727446550479°
No. sessions: 184
No. delays: 13381
Defining: No
RMS(α cos δ) = 474.0703 mas
RMS(δ) = 171.8490 mas

Quarterly time series for 1800+440 (2025b, 4 global solutions)

Data

Right ascension: 270.3846451074849°
Declination: 44.0727500658189°
No. sessions: 169
No. delays: 11032
Defining: No
RMS(α cos δ) = 0.1823 mas
RMS(δ) = 0.2690 mas