README web version of /home/usg/OPS/MTS/readme_xml/readme_82500900

Principal Investigator Email Address

• as110@st-andrews.ac.uk

Estimated Total Execution Time (hours, including overheads)

• 2.0

General Description

• We are asking for DDT time to do NIR spectroscopy with ISAAC for a 
  recently discovered binary brown dwarf with circumbinary disk. The object 
  has been characterised previously with high spatial resolution in HST 
  images. With the VLT/ISAAC resolution, we expect the object to be 
  unresolved. Thus, the spectrum will contain light from both stars 
  (as well as the disk). Under exceptional seeing conditions (<0.5") 
  the object may appear extendedor as a binary in the aquisition image. 
  The slit will still cover both components. In any case, the slit
  should be centered on the visual center of the source.
  
  The observations are straightforward: 
  
  For the acquisition, we provide a J-band finding chart from the UKIDSS survey. 
  The object is clearly visible in the center of the field. There are no issues 
  with source confusion. The slit position is marked with a black box. The given 
  coordinates are accurate to within 1 arcsec. The magnitude for the target is 
  approximately J=16.0, the object should be clearly detected in the aquisition 
  image. The FOV contains at least two stars with J=10-11, too bright for broadband
   
  filter, therefore we do the aquisition in a narrowband filter.
  
  We ask for low-res spectroscopy in all three NIR bands, J, H, and K. We provide
  two OBs. Each starts with the aquisition, followed by 4 AB cycles each with 88sec
   
  DIT in J-band. We then continue with 8 cycles a 89sec DIT, either in
  K (OB onc-124-132-JK) or in H (OB onc-124-132-JH).

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• We request the observations to be carried out under seeing
  1.0" or better (note that we specified 0.8" in the proposal,
  but realised that we can loosen this constraint a bit).

Time-Critical Aspects

• Not applicable.

Special Execution Requirements

• Not applicable.

Special Calibration Information

• The observations require only standard calibrations within
  the ISAAC calibration plan. Specifically, we need bias and
  flatfield frames, arc exposures, as well as a spectrum for
  a spectroscopic flux standard to correct for the response.

ToO Information

• Not applicable.

ToO Activators List

• Not applicable.

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• Not applicable.

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 ?

• 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 you submitted OBs for standard stars, did you use the provided StandardStar
 templates ?

• N/A

If you are using a specific offset pattern or position angle, did you
 check carefully the definition in the manual ?

• N/A

If you are doing spectroscopy, did you draw the slit on the Finding Charts
 ?

• YES

Did you enter the magnitude of the brightest star in the field-of-view
 in the 'Instrument Comments' field of each OB ?

• YES

If you use the MoveToPixel acquisition, have you given clear instructions
 on the FC and in the OB comment section as to how the field should be centered ?

• N/A