README web version of /home/usg/OPS/MTS/readme_xml/readme_79009300

Principal Investigator Email Address

• paul.crowther@shef.ac.uk

Estimated Total Execution Time (hours, including overheads)

• 4h 53m

General Description

• We require pre-imaging of 15 ultra-compact (UC) HII regions in the NeII
   and NeII_2 filters. This combination of filters will identify nebular NeII emission
   from deeply embedded ionizing OB stars. Co-ordinates are taken from radio observations
   of the UC HII regions. The UC HII regions are embedded within thermal IR dust shells,
   which dominates continuum N-band emission. 
  
  The finding charts attached are 8 micron spitzer/IRAC images, and show the dust/PAH
   emission associated with these UC HII regions. The co-ordinates supplied are radio
   derived (and represent the position of the embedded ionizing sources). The peak
   dust emission in these images is not always spatially coincident with these co-ordinates
   (it may sometimes appear we are aiming at the edge of the dust). The cross-hairs
   indicate the positions of the UCHII regions, at the centre of all images. The center
   of the acquisition image should be as close as possible to the cross hairs. (Acquisition
   exposure times may need to be adjusted to obtain the same dust morphology as in
   the finding charts). 
  
  The minimum exposure time allowed with this setup is 180 seconds, yet many of the
   sources are very bright at these Mid-IR wavelengths and so care should be taken
   with regards to saturation. The OBs with priority 1 are the brighter objects (integrated
   MSX 12 micron flux >20 Jy), and OBs at priority 2 are fainter (MSX 12 micron
   flux = 1-5 Jy). Individual integrated 12um fluxes are noted for each OB.
  
  All OBs include a suitably bright guide star within 5 arcmin from GSC/USNO (obtained
   from guidecam).

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• None

Time-Critical Aspects

• None

Special Execution Requirements

• ---(Empty)---

Special Calibration Information

• ---(Empty)---

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• true

Pre-imaging Requirements

• this is a pre-imaging run, in advance of a visitor run from 1-3 August
   07.

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 ?

• YES

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?

• YES