README web version of /home/usg/OPS/MTS/readme_xml/readme_84104200

Principal Investigator Email Address

• annao@fysast.uu.se

Estimated Total Execution Time (hours, including overheads)

• 33

General Description

• The objective of this run is to obtain high resolution, high 
  signal-to-noise (>=200) spectra in four wavelength regions in 
  the J band for a sample of M dwarf stars. The targets cover the 
  temperature-metallicity plane from early to mid-M spectral type 
  and from just below solar to high metallicity. The spectra will 
  be used for an abundance analysis of the sample. Several of the 
  target M dwarfs are in binaries with FGK-type primary stars. As 
  an independent check for the analysis, the primaries will also be 
  observed, with the same settings as the M dwarfs.
  
  The target list includes 13 objects. For all except four, the  
  observations can be completed with one observation block (OB). For  
  HIP 12048B, GJ 527B, and HIP 101806B, we provide 3, 3 and 8 OBs,  
  respectively. They can be executed independently. For GJ 570B, which  
  is a spectroscopic binary, we provide five identical OBs (see Time- 
  Critical Aspects). This results in at total number of 28 science OBs  
  and an equal number of calibration star OBs (telluric standard stars,  
  see Special Calibration Information).
  
  All targets are brighter than J=11 and only two are fainter than J=9.
  
  Finding charts are provided for all science targets.
  
  Please note the Special Execution Requirements for four targets, 
  which are close binaries with separations less than about 20 arcsec.
  
  We request standard calibrations for all stars.

Waiver Requests

• Two Phase 2 waiver requests were approved by Dr. Mario van den Ancker:
  
     What                             approved
  1) Adjustment of slit PA            2008-08-05
  2) Telluric stars finding charts    2008-08-05
  
  1) Three of the wavelength settings use a free reference wavelength:
     order 47 - 1205.2 nm, order 45 - 1258.4, and and order 43 - 1303.1
  
  2) Four targets are to be observed with the derotator in SKY mode. Slit 
  position angles are provided, but an additional adjustment of the position 
  angle is required in order to center the two components of the binary 
  systems on the slit (see Special Execution Requirements).
  
  3) Finding charts are skipped for 12 unambiguous telluric standard stars.

Critical Observing Condition Constraints

• There are no critical observing conditions constraints 
  associated with the run.

Time-Critical Aspects

• There are no time-critical aspects associated with the run.
  However, for one target (GJ 570B), which is a spectroscopic 
  binary, we provide five identical OBs (GJ 570B 1 to 5). Please 
  do not execute them in the same night, but spread them over the 
  observable period, as far as possible (Feb to March). This is 
  noted in the "User Comments" of the OBs.

Special Execution Requirements

• Four targets are close binaries with separations of about 
  20 arcsec and less. These are to be observed with the derotator 
  in SKY mode. Please adjust the slit in such a way that both 
  binary components are observed simultaneously (see "User Comments" 
  in the OBs).
  
  The following table lists the provided position angles (PA) and 
  some more information:
  
  Target        PA    Separation  Delta J    Year of measurement
  GJ  200B   | 322   |   1.6"    | 2       | 2001 
  GJ  527B   |  33   |   2.8"    | 4       | 2000 
  HIP 12048B | 188   |   6"      | 3.8     | 2003 
  HIP 101806B| 175   |  11"      | 4.1     | 2004 
  
  For the first two targets, the separation is quite small. If the two 
  components cannot be resolved on the acquisition image, the OB should 
  be executed with the provided PA (see "User Comments" of the respective 
  OBs).

Special Calibration Information

• We request the execution of a telluric standard OB for 
  each science OB in the same night at a similar airmass. 
  The required calibration star OBs have been submitted. S
  ee "Calibration Requirements" in the OBs for the science targets.
  
  For all but one calibration star the finding chart was skipped, 
  because they are unambiguous in the field.
  
  The targeted S/N of the spectrum of the telluric stars is 600 
  at the reference wavelength. The permitted spectral type range 
  is B- and A-type.

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

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?

• YES

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