attachment:README_199-14.txt of Continuum/ObservingSession

   1 ############################## PROJECT INFO ##################################
   2 
   3    Run:                  6th GISMO pool
   4    Project:              199-14
   5    PI:                   Israel Hermelo
   6    Contact:              hermelo@iram.es
   7    Target:               The dust SED of dwarf galaxies: NGC4449
   8    Allocated time:       9 hours
   9 
  10 ########################### WEATHER CONDITIONS ###############################
  11 
  12 In the proposal we asked for pmw < 7 mm.
  13 
  14    => tau_225GHz = 0.0405 * pmw + 0.0105 ~ 0.3
  15 
  16 Therefore, this project is meant to be observed only when tau is < 0.3.
  17 However, in conditions of good stability, values up to tau ~0.5 are acceptable.
  18 In case of doubt ask the AoD.
  19 
  20 ######################## OBSERVATIONS BOOKKEEPING ############################
  21 
  22 We prepared a script to observe our target (see ~/199-14/observe_NGC4449.pako)
  23 consisting of 3 rounds of on-the-fly maps. The scanning direction adopts
  24 3 different values (0, 45, and 90 degrees) within each round in order to avoid
  25 striping artifacts. The execution of the script will take ~90 minutes (3 rounds,
  26 3 scanning directions, 10 min per map), so "observe_NGC4449" must be executed
  27 6 times to reach the allocated time. If you observe this project, please keep
  28 the number of repetitions (Nreps) updated.
  29 
  30    Galaxy      Visibility (UT)         Script          Nreps
  31    NGC4449      07:00-16:00        observe_NGC4449      0/6
  32 
  33 ################################ INSTRUCTIONS ################################
  34 
  35 The GISMO wiki provides instructions to start PaKo and to setup the telescope:
  36 
  37  ->  http://www.iram.es/IRAMES/mainWiki/Continuum/GISMO/Main
  38 
  39 Once PaKo is open, load the setup script:
  40 
  41    PAKO> @ ~/199-14/setup_199-14
  42 
  43 Then do a pointing on the nearby pointing source:
  44 
  45    PAKO> source 1144+402 /cat *
  46    PAKO> @ cont_pointing
  47 
  48 Once the scan is done, introduce the pointing corrections (see the wiki).
  49 
  50 Check the value of the FWHM. If FWHM > 21 arcseconds then the telescope needs
  51 to be focused (see the wiki).
  52 
  53 Load the observing script:
  54 
  55    PAKO> @ ~/199-14/observe_NGC4449
  56 
  57 Once the script is done go to the pointing source and do a pointing.
  58 Please, DO NOT forget to check again if the telescope needs to be focused.
  59 
  60 Thank you very much!
  61 
  62    Israel Hermelo