README web version of /home/usg/OPS/MTS/readme_xml/readme_75080700

Principal Investigator Email Address

• lpasquin@eso.org

Estimated Total Execution Time (hours, including overheads)

• 33h 18'

General Description

• Beryllium and Nitrogen in NGC~6752: a critical test for the cluster formation
   
  
  The program aims at measuring Beryllium abundances in 2 Torn Off stars of the globuar
  cluster NGC6752. Easch star is observed 10 times with the same OB for 1.5 hours.
   
  The magnitude of the stars is V~17.2 and we are attempting a measurement about 1
   magnitude fainter than ever obtained in the past. we are pushing at the limits.
   
  Being in the extreme UV, it is important not to exceed the airmass constraints and
   to observe the stars as much as possible close to meridian. Finding charts are from
   UVES slit viewer previous observations. In case the programme cannot be concluded,
    n4428 should be  observed and finished first (set in the priorities). 
  If I could access some of the reduced data prior program completion, it could be
   
  very very useful.

Waiver Requests

• Two waiver requests were submitted: one for having longer exposure times,
   (WaiverID:  075.D-0807A.01)
   and one because I could not specify North and East in the UVES viewer.
  (WaiverID:  075.D-0807A.02)
  
  Both have been approved on February 9.

Critical Observing Condition Constraints

• low airmass.

Time-Critical Aspects

• none

Special Execution Requirements

• Please execute first all the OBs of n4428 and only when these
  are finsihed, pass to n200613. Thanks

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 ?

• YES

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