attachment:README_199-14.txt of Continuum/PoolPreparation

   1 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! README !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   2 !!!                                                                   !!!
   3 !!!   Run:                  3rd NIKA pool                             !!!
   4 !!!   Project:              199-14                                    !!!
   5 !!!   PI:                   Israel Hermelo                            !!!
   6 !!!   Contact:              hermelo@iram.es                           !!!
   7 !!!   Target:               Dust in the nearby dwarf galaxy NGC4449   !!!
   8 !!!   Allocated time:       10 hours                                  !!!
   9 !!!   Last update:          2015 JAN 24 (IH)                          !!!
  10 !!!                                                                   !!!
  11 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  12 
  13 
  14 
  15 !!!!!!!!!!!!!!!!!!!!!!!!!!! WEATHER CONDITIONS !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  16 
  17 In the proposal we asked for pmw < 7 mm.
  18 
  19    => tau_225GHz = 0.0405 * pmw + 0.0105 ~ 0.3
  20 
  21 Therefore, this project is meant to be observed only when tau is < 0.3.
  22 However, in conditions of good stability, values up to tau ~0.5 are acceptable.
  23 In case of doubt ask the AoD.
  24 
  25 
  26 !!!!!!!!!!!!!!!!!!!!!!!! OBSERVATIONS BOOKKEEPING !!!!!!!!!!!!!!!!!!!!!!!!!!!!
  27 
  28 We prepared a script to observe our target (see ~/199-14/observe_NGC4449.pako)
  29 consisting of 3 rounds of on-the-fly maps.
  30 The scanning direction adopts 4 different values (0, 45, 90, and 135 deg)
  31 to avoid artifacts (e.g., stripes).
  32 The execution of the script will take ~2 hours
  33 (3 rounds x 4 angles x 8 min + overheads due to pointing and focus),
  34 so "observe_NGC4449" should be executed 5 times to reach the allocated time.
  35 If you observe this project, please keep the number of iterations updated.
  36 
  37    Galaxy      Visibility (UT)         Script          Niter
  38    NGC4449      07:00-16:00        observe_NGC4449      0/5
  39 
  40 
  41 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! INSTRUCTIONS !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  42 
  43 See our wiki and/or ask the AoD if you have questions:
  44 
  45 -> http://www.iram.es/IRAMES/mainWiki/NIKA/Main
  46 
  47 Load the setup script in PaKo:
  48 
  49    PAKO> @ ~/199-14/setup_199-14
  50 
  51 Do a pointing on a nearby pointing source:
  52 
  53    PAKO> source 1144+402 /cat *
  54    PAKO> @ cont_pointing
  55 
  56 Introduce the pointing corrections in PaKo:
  57    
  58    PAKO> set pointing xx yy
  59 
  60 Check the value of the FWHM. Before to start the observations the telescope
  61 must be well focused. In case of doubt see the wiki and/or ask the AoD.
  62 
  63 Load the observing script:
  64 
  65    PAKO> @ ~/199-14/observe_NGC4449
  66 
  67 This is a long script, so once it is done, repeat the pointing and check
  68 again if the telescope needs to be focused.
  69 
  70 Thank you very much!
  71 
  72    Israel Hermelo