README web version of /home/usg/OPS/MTS/readme_xml/readme_79503900

Principal Investigator Email Address

• s.l.folkes@herts.ac.uk

Estimated Total Execution Time (hours, including overheads)

• 00:32:18.000

General Description

• We require long slit JH and HK (blue and red grism) NTT/SOFI spectroscopy
   of a nearby very red (Rc-Ks=7.6) L-T transition spectral type brown dwarf. This
   will enable us to properly determine the spectral type from spectral template fitting
   and spectral indices, as well as look for any unusual spectral features that may
   identify our target as having unusual dust-cloud 'weather', metallicity and /or
   gravity. 
  
  we have tried to keep the the total time for one complete AB-BA cycle less than
   2 minutes (DITxNDIT) for the JH integrations, and less than 1 minutes for the HK
   integrations to facilitate better sky subtractions. We have thus increased the number
   of AB-BA cycles in preference to increasing the NINT number > 1.
  
  We have included an OB for the A0V telluric standard star which we ask to be observed
   just before or just after out science target observations.
  
  We also ask that the slit be rotated to a PA ~= 90degrees (East-West) to avoid other
   bright stars falling on the slit, for both the science target and the telluric standard.
   We ask the SA/TO to use their best judgement in this respect.
  
  If possible please use the Halogen lamp (Nasmyth flats) for the flat fields.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• No critical time constraints.

Time-Critical Aspects

• No time critical aspects.

Special Execution Requirements

• N/A

Special Calibration Information

• If possible please use the Halogen lamp (Nasmyth flats) for the flat fields,
   to reduce the presence of water vapour in the spectroscopic flat field that is usually
   seen in the dome flats, Otherwise standard calibrations.

ToO Information

• N/A.

ToO Activators List

• N/A.

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• N/A.

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 ?

• 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