README web version of /home/usg/OPS/MTS/readme_xml/readme_83018300

Principal Investigator Email Address

• Ansgar.Reiners@phys.uni-goettingen.de

Estimated Total Execution Time (hours, including overheads)

• 3.0

General Description

• This is a program to observe the molecular FeH band in low-mass objects
   with CRIRES.
  The main goal of this run is to observe the low-mass companion of TWA5A, TWA5B.
  The A-component is about 5mag brighter than the B-component. Both components should
   be put under the slit (see finding chart). 
  At 300s DITs, the A-component is well below the linearity limit according to the
   ETC.
  
  The three OBs are identical and can be executed at any time.
  
  Two finding charts are provided:
  
  - one showing the field from a 2MASS J-band image from 1999 identifying the system
  - one showing a detailed NACO Ks-image of TWA 5A and B from 2007. 
  Currently, the system should appear close to that configuration (i.e., the secondary
   has not moved much).
  
  No telluric standard star is required.

Waiver Requests

• Waiver granted to use free wavelength settings in our observing runs 383.D-0183(A)
   and 383.D-0183(B).

Critical Observing Condition Constraints

• N/A

Time-Critical Aspects

• N/A

Special Execution Requirements

• Both components should be observed simultaneously.

Special Calibration Information

• N/A

ToO Information

• N/A

ToO Activators List

• N/A

Do the README file and the instrument comments of the telluric stars
 OBs include the required S/N/pixel of the spectrum of the telluric star, its spectral
 type and allowed spectral range?

• N/A

Do any OBs include wavelength or flatfield calibrations?

• NO

If you are observing Moving Targets, have you attached suitable ephemeris
 files to your OBs?

• N/A

If the slit viewer guide star is different from the target, are the RA
 and DEC offsets accurate to within 0.05 arcsec and do they take into account the
 relative proper motion between the two objects?

• N/A

If you have preferences which OBs should be executed first for objects
 at similar RA, did you make use of the User Priority field in the OBs?

• N/A