README web version of /home/usg/OPS/MTS/readme_xml/readme_75505700

Principal Investigator Email Address

• lagrange@obs.ujf-grenoble.fr

Estimated Total Execution Time (hours, including overheads)

• 01:59:50

General Description

• The goal of these SINFONI observations is to characterize spectroscopically
   the nature of the faint companion HD27442B (K=12.4) to the star HD27442A (K=1.8;
   locate at ~13" N-E) in order to confirm its substellar status. We will use the H+K
   grism with the small 25mas platescale coupled to the MACAO AO system.
  
  This observation require a special acquisition using the NGSfast OB! 
  
  As the primary is very bright in K-band, the acquisition of the AO Reference (HD27442
   A, K=1.8, R=4.0) must be done with the J Grism and the small 25mas platescale. Using
   the SINFONI engineering Panel, the DIT can be reduced to the minDIT = 0.83s to avoid
   strong saturation.
  
  Then, the OB will offset to the companion HD27442B. The Grism will be changed to
   the H+K one with the small 25mas platescale. The Night Astronomer must check that
   the companion HD27442B (K =12.4) is centered in the small FoV. He might go to the
   100mas platescale to check it before running the observation with the 25mas scale.

Waiver Requests

• Waiver Request 275.B-5057A.01.WAV accepted:
  
  **************************************************************************
  * Due to the problems of the Field Selector of NACO, we know that our DDT program
   275.B-5057(A) will not be observing within the two next weak (at least). For this
   reason, we would like to know if it could be possible to use the SINFONI instrument
   instead, which also provides a near-IR spectrograph also fed by an AO system (mandatory
   for this program).
  
  **************************************************************************
  * What technical requirement you wish to override
  To change from NACO (unavailable due to technical problems) to SINFONI.

Critical Observing Condition Constraints

• none

Time-Critical Aspects

• none

Special Execution Requirements

• This observation require a special acquisition using the NGSfast OB! 
  As the primary is very bright in K-band, the acquisition of the AO Reference (HD27442
   A, K=1.8, R=4.0) must be done with the J Grism and the small 25mas platescale. Then,
   the OB will offset to the companion HD27442B. The Grism will be changed to the H+K
   one with the small 25mas platescale. The Night Astronomer must check that the companion
   HD27442B (K =12.4) is centered in the small FoV. He might go to the 100mas platescale
   to check it.

Special Calibration Information

• none

ToO Information

• none

ToO Activators List

• none

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• none

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

Did you indicate the magnitude of the brightest object in the field in
 each SINFONI OB?

• YES

If you are using the AO: Did you indicate for every OB the magnitude
 of the guide star, and its distance to the target (if any)?

• YES

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

Did you make really sure that none of your OBs ever saturates the detector?

• YES

If you are using the AO: did you enter the correct Strehl Ratio (on-axis,
 K-band) AND the seeing value in the constraint set?

• YES