README web version of /home/usg/OPS/MTS/readme_xml/readme_79053600

Principal Investigator Email Address

• simon@das.uchile.cl

Estimated Total Execution Time (hours, including overheads)

• 16h

General Description

• The purpose of these observations is to acquire midIR continuum images
  of 3 PNe: NGC6369, NGC3242 and NGC7009. 
  
  NGC7009, NGC6369, and NGC3242 are all very extended for VISIR. Six OBs
  will attempt scanning accross the nebulae with generic offsets. The
  offset patterns consist of 3 positions, each corresponding to 3 ABBA
  nod/chop sequences in the parallel direction. 
  
  All of the other OBs are designed to chop on the nebula. I will
  reconstruct sky images using MEM modelling. The chopping pattern is a
  square, centred on the central star. 
  
  I used 0 jitter box because I am already sampling the array with
  different chop throws (required to recover chopped-out spatial scales
  in the MEM models). 
  
  Because these midIR images will be compared against the radio
  continuum, I need very accurate astrometry. Please make sure to store
  the information on where the acquisition star is located relative to
  the science image.
  
  The acquisition stars are the PN central stars, which are 2MASS stars
  in all cases.  The central star K-band magnitudes are: K=11.67 for
  NGC7009, K=11.35 for NGC6369, K=11.748 for NGC3242.
  
  CALIBRATION REQUIREMENTS:
  
   I need careful PSF monitoring. I provided 4 special purpose PSF STD
  OBs. These are:
  
  CAL_NGC 3242 PAH2 PSF STD          must immediately precede NGC3242 PAH2-0
  
  
  CAL_NGC 6369 PAH2 PSF STD          must immediately follow any of the OBs called
   NGC 6369 PAH2-i, for example NGC 6369 PAH2-1.
  
  
  CAL_NGC 6369 PAH2 PSF STD-0        must immediately follow either NGC 6369 PAH2ref-scan
   or NGC 6369 PAH2ref-scan-0
  
  
  CAL_NGC 7009 PAH2 PSF STD          must immediately precede NGC 7009 PAH2-0
  
  
  I hope it will be possible to schedule on the same night OBs grouped
  in the following groups, ordered by execution time and priority:
  
  
  group1          CAL_NGC 3242 PAH2 PSF STD          00:03:00.000        00:12:30.000
  group1   276571 NGC 3242 PAH2-0                    00:25:00.000        00:47:00.000
  group1   276572 NGC 3242 PAH2-1                    00:25:00.000        00:47:00.000
  group1   276573 NGC 3242 PAH2-2                    00:25:00.000        00:47:00.000
  
  group2   276569 NGC 3242 PAH2-scan                 00:32:30.000        00:58:15.000
  group2   276574 NGC 3242 PAH2ref-scan              00:32:30.000        00:58:15.000
  
  
  group3   264163 NGC 6369 PAH2                      00:25:00.000        00:47:00.000
  group3   264165 NGC 6369 PAH2-0                    00:25:00.000        00:47:00.000
  group3   264166 NGC 6369 PAH2-1                    00:25:00.000        00:47:00.000
  group3   264167 NGC 6369 PAH2-2                    00:25:00.000        00:47:00.000
  group3          CAL_NGC 6369 PAH2 PSF STD          00:03:00.000        00:12:30.000
  
  
  group4   276714 NGC 6369 PAH2-scan                 00:30:00.000        00:54:30.000
  group4          NGC 6369 PAH2-scan-0               00:30:00.000        00:54:30.000
  
  group5   276715 NGC 6369 PAH2ref-scan              00:28:45.000        00:52:38.000
  group5          NGC 6369 PAH2ref-scan-0            00:28:45.000        00:52:38.000
  group5          CAL_NGC 6369 PAH2ref PSF STD-0     00:03:00.000        00:12:30.000
  
  
  group6          CAL_NGC 7009 PAH2 PSF STD          00:03:00.000        00:12:30.000
  group6   264174 NGC 7009 PAH2-0                    00:25:00.000        00:47:00.000
  group6   264176 NGC 7009 PAH2-1                    00:25:00.000        00:47:00.000
  group6   264177 NGC 7009 PAH2-2                    00:25:00.000        00:47:00.000
  
  group7   276716 NGC 7009 PAH2-scan                 00:30:00.000        00:54:30.000
  group7   276695 NGC 7009 PAH2ref-scan              00:30:00.000        00:54:30.000

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• N/A

Time-Critical Aspects

• N/A

Special Execution Requirements

• ---(Empty)---

Special Calibration Information

• ---(Empty)---

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• ---(Empty)---

Source(s) of Pre-imaging

• ---(Empty)---

Pre-imaging sources not listed above

• ---(Empty)---

Do all your OBs comply with the instrument-specific requirements listed
 on the instrument-specific Phase 2 web page ?

• YES

If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
 Category for each Observing Template ?

• N/A

Do all your finding charts comply with both the general and instrument-specific
 Phase 2 Web Pages ?

• YES

If you submitted OBs for standard stars, did you specify the magnitude
 and spectral type of all standard stars in the OBs ?

• N/A

Have you included OBs for any calibrations that you need but which are
 not part of the Calibration Plan ?

• N/A

If you are observing Moving Targets, have you attached suitable ephemeris
 files to your OBs?

• N/A

If you have preferences which OBs should be executed first, did you make
 use of the User Priority field in the OBs ?

• YES

If this is a run that requires coordinated observations with other facilities,
 did you give proper instructions in the Time-Critical Aspects Section ?

• N/A

If the provided finding chart is at a different wavelength than the observations,
 did you clearly describe in the README file how to identify the target?

• YES

Did you specify a guide star brighter than V=12mag within a field of
 r=5arcmin around the science target?

• NO