README web version of /home/usg/OPS/MTS/readme_xml/readme_75085102

Principal Investigator Email Address

• viki@strw.leidenuniv.nl

Estimated Total Execution Time (hours, including overheads)

• 1.7

General Description

• This is a simple spectroscopic programme consisting of 
  two OBs for two different fields (object CHXR74 and
  object ChaHa8).
  
  Each OB consists of two identical single exposures.
  
  The OBs should be executed between April and early June 
  because of objects visibility.
  
  A wavelength calibration is part of the daily Calibration
  plan, it is very important that a ThAr exposure is taken with
  the same settings and an exposure time of 0.1 sec on the 
  same day (see special calibration information).

Waiver Requests

• Approved Waiver Request with WaiverID:  075.C-0851C.01 
  
  The request was submitted on 15.2.2005 and approved 
  on the same day.
  
  A permission was given to exceed the 
  1-hour-limit for a single OB by about 10 minutes
  for the OB named 'ob-cha8-1' .

Critical Observing Condition Constraints

• Both OBs can be executed under a seeing of 2" and bright time.
  Thin cirrus clouds (inducing absorption up to 0.2 mag) may be present. 
  The airmass should be below 2.

Time-Critical Aspects

• The OBs should be executed between April and early June 
  because of objects visibility.

Special Execution Requirements

• N/A

Special Calibration Information

• To achieve highest radial velocity precision an attached wavelength calibration
   
   (ThAr) would be ideal, however, this is no longer allowed in service mode for the
   
   used setting (860).
   
   A wavelength calibration exposure is part of the daily calibration plan,
   however, since itt is *VERY IMPORTANT* to have a wavelength calib. from 
   the same day as the science exposures and with the same settings, we 
   emphasize here what we need:
             
                  UVES_red_cal_wave
                  Red Readout Mode       50kHz,2x2,high
                  Red Exposure Time      0.1 sec           <---- !
                  Cal. Lamp              TAL   
                  Red Slit Width         1.0   
                  Red Mode Central Wlgt  860
          
   the exposure time should not be significanlty different from 
                    * 0.1 sec * 
   since otherwise too many lines are saturated.

ToO Information

• This is not a ToO programme.

ToO Activators List

• N/A

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

If you need secondary guiding, are there suitable objects within 30 arcsec
 from your target ?

• N/A