MJ008

Combined revision comparison

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• Track of the 3mm project MJ008 without Europe
• In-beam phase referencing (Sgr A* - IRS 7) where stations observed on a P-Half position between the two targets.
• Session info: http://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/
• Session feedback: https://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/sessions/apr25/feedback_apr25.asc
• ANTAB and log files are available at
  • http://www.vlba.nrao.edu/astro/VOBS/astronomy/apr25/mj008/
  • ftp://vlbeer.ira.inaf.it/vlb_arc/ftp/vlbi_arch/apr25/
• Station feedback:
  • ALMA and GBT were out and essentially did not observe this track 
  • Although ALMA observed the first scan (No0072 on 1741-038; no fringes) they then stopped on a technical fault
  • GBT notes that they "did not observe c251a and mj008". Their Mk6 recordings expectedly produced no fringes.
  • FD and PT receivers were warm, KP mostly(?) stowed due to weather
• DiFX v2d has two addPhaseCentre=... statements which form the required additional phase centers on Sgr A* and IRS 7 away from the P-Half telescope pointing position.
• Scans that got scheduled on the targets directly (not P-Half) had the source names REALSGRA and REALIRS7. These normal sources have visbility in dataset mj008-main-PHALF.fits
• Source names for the additional phase centers around P-Half are SGRA_P (dataset: mj008-SGRA_P.fits) and IRS7_P (dtaset: mj008-IRS7_P.fits).The normal correlation has visbility data on calibirators and on P-Half (dataset: mj008-main-PHALF.fits)

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