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Table 1.

Observation properties.

Arraya Codeb Date vcobs (GHz) Tdobs (min) Pol.e Correlator pass IFs (MHz) BWf Ngch (kHz) Δvh
EVN+VLBA+Ar GN002B 2015-06-13 1.293 500 Dual continuum 4 16 32 500
Spectral line 1 16 512 31.25
VLA 11A-166 2011-08-10 1.283 40 Dual Spectral line 1 16 256 62.5



Array used for observation. EVN: Effelsberg (Germany), phased-up Westerbork (5 stations, Netherlands), Jodrell-Bank (United Kingdom), Onsala (Sweden); VLBA (USA): Los Alamos (NM), Kitt Peak (AZ), St. Croix (VI), Mauna Kea (HI), Hancock (NH), Brewster (WA), Fort Davis (TX), North Liberty (IA), Pie Town (NM), Owens Valley (CA); Ar: Arecibo (Puerto Rico).


Experiment code,


observing frequency,


observing time. For the VLBI experiment, this represents the total on-source time of the whole array.


Polarization: dual means that two polarization were used (LL and RR),


bandwidth (of each IF),


number of channels in a single band or IF,


channel width in frequency.

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