Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1221+809 (independent mode)

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

Right ascension: 185.9187232170484°
Declination: 80.6678723544454°
No. sessions: 151
No. delays: 10584
Defining: Yes
RMS(α cos δ) = 2.3484 mas
RMS(δ) = 1.9192 mas

Quarterly time series (from 4 global solutions) for 1221+809

Data

Right ascension: 185.9187239765425°
Declination: 80.6678723555549°
No. sessions: 150
No. delays: 10563
Defining: Yes
RMS(α cos δ) = 0.1338 mas
RMS(δ) = 0.1543 mas

Quarterly time series (from 10 global solutions) for 1221+809

Data

Right ascension: 185.9187239859675°
Declination: 80.6678723547253°
No. sessions: 150
No. delays: 10563
Defining: Yes
RMS(α cos δ) = 0.1319 mas
RMS(δ) = 0.1533 mas