Report of the Global 3mm-VLBI Session Oct. 10-13, 2004 ======================================================= General: Onsala: receiver and pointing problem, no useful data VLBA: VLBA_HN receiver problem, no usefull data VLBA_PT recorded on MK5 disks, the others on tape VLBA_NL rain during day 282 VLBA_FD some rain 2nd half of day 285 VLBA_LA some rain 2nd half of day 285 VLBA_PT rain on day 285 Pico: started 48 hrs late, bad weather Metsa: started 24 hrs late, after this time MK5/formater problems likely solved PdBure: software phasing problem in the beginning (solved after 14 hours), from 0920(9/10)-2145(9/10) local correlator phasing setting dubious but Global fringes Parasitic phase noise noted in earlier Global sessions still present with the replacement maser. Individual Experiments: ------------------------------ CODE PI SOURCE UT-START UT-STOP ====== ======== ========= =========== =========== GP041 Pagels 3C84 Eu 2200(07/10)-1000(08/10) US 0000(08/10)-1500(08/10) Pico not observing due to high wind Eff observed, cloudy, Tsys 180-240, tau=0.15-0.3 PdBure observed, software phasing problem (efficiency approx. 10%), tau=0.2 Onsa receiver misaligned, data probably lost Metsa MK5 problems, likely to be lost ---------------------------------------------------------------------------------- GK023B Krichbaum 1633+382 Eu 1000(08/10)-2300(08/10) US 1300(08/10)-0130(09/10) Pico not observing due to high wind Eff observed, overcast, weather improved towards the end PdBure observed, software phasing problem before EU 1210(08/10), good later, tau 0.1-0.2 Onsa receiver misaligned, data probably lost Metsa MK5 problems, likely to be lost ------------------------------------------------------------------------------------ GM056 Mittal 0218+357 Eu 2300(08/10)-0830(09/10) US 0000(09/10)-1130(09/10) Pico not observing due to high wind Eff observed, pointing difficult since source is weak, weather clear to moderate Tsys=190, tau=0.2 PdBure observed, 6 scans lost due to high wind stop, clear, tau=0.1-0.18 Onsa receiver misaligned, data probably lost Metsa ok, clear sky at the end ----------------------------------------------------------------------------------- GB051B Bach 0716+71 Eu 0830(09/10)-2200(09/10) US 1130(09/10)-2300(09/10) Pico not observing due to high wind Eff pointing done on RCAS and 4C39.25, far away and big slews ! tau=0.15 PdBure observed, local correlator conf. problem may have reduced efficiency, tau=0.15 Onsa receiver misaligned, data probably lost Metsa ok, clear ------------------------------------------------------------------------------------- GK027 Kadler NGC1052 Eu 2200(09/10)-0400/0700(10/10) US 0200(10/10)-1400(10/10) Pico observing ok, weather improved towards the end Eff pointing done on 0420-014, big slews !, weather clear, tau=0.15 PdBure observed at start, weather degrading, stopped after 0030(10/10) Onsa receiver misaligned, data probably lost Metsa ok ----------------------------------------------------------------------------------- GK025B Klare 3C345 Eu 0900(10/10)-2330(10/10) US 1100(10/10)-0200(11/10) Pico observing ok, partly foggy & cloudy Eff observing ok, weather mainly clear, pointing problems from 11-13 UT Tsys=160, tau=0.12 PdBure snow+thunderstorm at beginning, observed after Eu 1220(10/10), tau=0.15 Onsa receiver misaligned, data probably lost Metsa ok, clear sky --------------------------------------------------------------------------------- GA019B Agudo NRAO150 Eu 2330(10/10)-1400(11/10) US 0200(11/10)-2000(11/10) Pico observing ok, clear sky Eff observing ok, weather degrading towards the end, tau=0.15, Tsys=150-200 PdBure observed, clear, tau=0.15 Onsa receiver misaligned, data probably lost Metsa ok ------------------------------------------------------------------------------------------------ MAHE01 Eckart SagA* Eu 1200(11/10)-1700(11/10) Eb, PV, PdB Pico observing ok, clear sky Eff cloudy, difficulties to point, backend problems, part of this might be ok PdBure cloudy, lost 8 scans on SGR_A due to snowfall stop, 7 observed, Tsys=300-700K Onsa receiver misaligned, data probably lost Metsa not observed ----------------------------------------------------------------------------------------- GP040B Pagels 3C454.3 Eu 1700(11/10)-0300(12/10) US 2000(11/10)-0600(12/10) Pico observing ok, clear sky Eff observing ok, cloudy, Tsys=180-240, tau=0.2 PdBure observed, clear, tau=0.1-0.17 Onsa receiver misaligned, data probably lost Metsa ok ----------------------------------------------------------------------------------------- GG059 Gomez 3C120 Eu 0300(12/10)-0900(12/10) US 0300(12/10)-1600(12/10) Pico observing ok, weather degrades towards the end, clouds Eff observing ok, cloudy, Tsys=180-240, tau=0.2 PdBure observed, clear, tau 0.11-0.15 Onsa receiver misaligned, data probably lost Metsa ok -------------------------------------------------------------------------------------------- GC024 Colomer SiO-chiCyg Eu/US 1800(12/10)-1500(13/10) Pico mainly clear sky, sometimes pointing problems on RCAS, ChiCyg +RLeo should be ok Eff observing ok, clear PdBure observed about 65% (meteo stops), weather varies considerably, Tsys 160-900K Onsa receiver misaligned, data probably lost Metsa ok, quite clear after 21 UT: scans shortened, disk space problem