README web version of /home/usg/OPS/MTS/readme_xml/readme_75078800

Principal Investigator Email Address

• smohanty@cfa.harvard.edu

Estimated Total Execution Time (hours, including overheads)

• 7.0h

General Description

• The observations are of a candidate planet around a young brown dwarf.
    
  The central brown dwarf (primary) is named 2MASS 1207-3932 A; 
  the possible planetary companion is 2MASS 1207-3932 B.
  
  Our observations seek to certify the planetary status of the companion,
  through (1) J-band photometry and (2) J+H+K spectroscopy using NAOS-CONICA. 
  
  IMPORTANT!!!: 
    (1) The J-band photometry is ALREADY DONE; this README file concerns 
        ONLY the J+H+K spectroscopy.  
    (2) The total time available for this spectroscopy run is 5.8 hours:
        1.2 hrs of the total 7 hrs awarded have already been spent on photometry.
    
  
  For ALL the spectroscopy OBs:
  a) primary (K = 11.95 mag) is used as the AO reference star
  b) AO guiding is done in the IR, with the n90c10 dichroic
  c) we use the S54 camera, 86 mas slit, and FowlerNsamp
  
  We have submitted a total of SEVEN spectroscopy OBs:
  1) FIVE OBs for H+K-band spec. of primary + companion (Priority 1), OB names:2M1207ABspec1-5,
   S54_4_SHK grism
  2) ONE OB for K-band spec. of the primary (Priority 2), OB Name: 2M1207AspecK, S54_3_SK
   grism
  3) ONE OB for J-band spec. of the primary (Priority 2), OB name: 2M1207AspecJ, S54_4_SJ
   grism

Waiver Requests

• 075.C-0788A.01.WAV: submitted: 21.02.2005; approved: 23.02.2005
  Two requests GRANTED:
  1. Our imaging OB will exceed 1 hour by 12 minutes (30 minutes integration 
     + 42 minutes overheads). If the conditions degrade after 1 hour of exposure,
   
     the OB will not be repeated.
  2. The spectroscopic OBs will be submitted once the imaging one has been
     executed and the data released to us.

Critical Observing Condition Constraints

• Seeing MUST be  <= 0.6''  
  Airmass MUST be <= 1.2 for the spectroscopy of the primary + planetary companion
              and <= 1.4 for the spectroscopy of the primary.
  
  The primary, used as reference guide star for AO, is itself quite faint, 
  with K = 11.95 (brightest object in the field); 
  the conditions above are necessary to close loop efficiently
  and get significant AO correction.

Time-Critical Aspects

• Observations MUST be PRIOR to JUNE 15 (after which the object is no longer
   
  visible at ideal airmass).  Ideally the observations should be made as soon
  as possible !! :-)

Special Execution Requirements

• Spectroscopy: 
  (1) H+K spectroscopy (S54_$_SHK) of the primary + planetary companion:
                BOTH primary AND planetary companion MUST lie in the slit 
                simultaneously. This means that the slit must be positioned 
                along the axis joining the primary and companion, at an angle 
                 of 125.5 degrees (see finding chart image  for this OB).
                 
                 Please use the 30s acquisition image specified in this
                 OB to locate the planet (faint companion), and ENSURE 
                 that both primary and companion fall within the slit 
                 (The faint companion is located ~775 mas from the primary, 
                 at a position angle  125.5 degrees measured from North to East)
  
  (2) J and K-band spectroscopy of the primary: ONLY primary within the slit. It is
   the
  brightest object in the field (K~12mag and J=13mag)

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 ?

• 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 have PSF reference star OBs, do the names of those OBs begin with
 PSF_ ?

• N/A

If there are Finding Charts attached to your OBs, is the field-of-view
 of at least one of these charts 2' x 2' (with clearly labelled field orientation)
 ?

• YES

Have you clearly marked and labelled your wavefront reference objects
 R1, R2, R3, ... (as specified in the NAOS Preparation Software) on your Finding
 Charts ?

• YES

Have you specified the magnitude of the brightest object in the field-of-view
 for each OB ?

• YES

Are there objects in any of your fields (including standard stars) which
 are brighter than the limits specified in the User Manual and on NACO web Pages
 ?

• NO

If the previous answer is yes, have you given a list of OBs and a justification
 for the brightness limit violation in the general description field ?

• N/A