Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1642+690 (2025b, independent mode)

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

Right ascension: 250.5327022233891°
Declination: 68.9443767861449°
No. sessions: 274
No. delays: 23757
Defining: Yes
RMS(α cos δ) = 3.0552 mas
RMS(δ) = 1.9972 mas

Quarterly time series for 1642+690 (2025b, 4 global solutions)

Data

Right ascension: 250.5327021992153°
Declination: 68.9443767709603°
No. sessions: 253
No. delays: 20233
Defining: Yes
RMS(α cos δ) = 0.1327 mas
RMS(δ) = 0.2161 mas