<Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1640+254 (2026a, independent mode)

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

Right ascension: 250.6683825787091°
Declination: 25.3854673264045°
No. sessions: 6
No. delays: 685
Defining: No
RMS(α cos δ) = 0.4346 mas
RMS(δ) = 0.3498 mas

Observed in only 6 session(s)

Quarterly time series for 1640+254 (2026a, 4 global solutions)

Data

Right ascension: 250.6683826344791°
Declination: 25.3854673092334°
No. sessions: 6
No. delays: 685
Defining: No
RMS(α cos δ) = 0.1859 mas
RMS(δ) = 0.1189 mas

Observed in only 6 session(s)