README web version of /home/usg/OPS/MTS/readme_xml/readme_79025900

Principal Investigator Email Address

• wyatt@ast.cam.ac.uk

Estimated Total Execution Time (hours, including overheads)

• 10.9

General Description

• These observations shall be used to search for extended emission around
   the science objects, and place stringent limits on extension should none be found.
    As such, a good knowledge of the PSF is vital to our science goals.  Thus each
   science OB (names starting with SCI_sciencetargetname) has 2 calibration OBs associated
   to it, named starting with CAL_sciencetargetname, one of which must be executed
   immediately before the science OB and the other immediately afterwards.  It is vital
   that both calibration observations are performed to characterise any changes in
   the PSF or calibration over the course of the observations due to changing conditions/airmass.
   Note that all finding charts are based upon K band 2MASS images.  In all cases our
   target will be the brightest object in the field at the wavelength of the observations.
   Note HD113766 has a binary companion at 1.2arcsec, PA ~280 degrees, of roughly equal
   brightness in the visual (V=8.1), but which will be much fainter at N and Q, although
   this should be detected.  
  No guide stars have been specified in the OBs, but the guide star catalogue has
   been checked and all targets have suitable guide stars available within 5 arcmin.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• As we are looking for extension on very small scales we require good seeing
   to acheive our science goals.

Time-Critical Aspects

• For each set of observations, the sequence must be calibration observation,
   science observation, calibration observation to allow accurate modelling of the
   PSF. 
  Time restrictions on objects are due only to the dates over which the objects are
   observable from the VLT.

Special Execution Requirements

• Each science observation must be accompanied by two observations of the
   associated standard star, one immediately before and one immediately after the observation
   of the science object.  For each star, the appropriate calibration templates have
   the same name as the science OB, but with CAL instead of SCI at the start and followed
   by -1 and -2, to signify the two calibrations.

Special Calibration Information

• As stated in the previous sections, two observations of a standard star
   (one immediately before the science object and one immediately after), are required
   per science target to allow accurate characterisation of the PSF.  For each science
   observation the calibration observations are of the same target, so that any affects
   of airmass and change in seeing can be detected, free from concerns over change
   in target. As the science observation of HD69830 in filter Q2 is split into 3 OBs
   to keep the integration time to an hour per OB, 6 calibration OBs have been specified
   for this object in this filter; 2 per science OB as for all other science OBs. Furthermore
   the calibration OBs will be used for photometric calibration. The calibration targets
   are: HD 9138 K4III (science target BD+20 307 in SiC filter), flux 7.672Jy in SiC;
   
  HD 13596 M0III (science target BD+20 307 in Q2 filter), flux 2.575Jy in Q2; 
  HD 61935 G9III (science target HD 69830), flux 6.938Jy in SiC, 2.789Jy in Q2;
  HD 111915 K3.5III (science target HD 1113766), flux 10.069Jy in SiC, 4.033Jy in
   Q2.

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 ?

• YES

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

• YES

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 ?

• N/A

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