README web version of /home/usg/OPS/MTS/readme_xml/readme_83042101
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
We want to obtain high-resolution spectra of two quasars with UVES. Our
aim is to reach a total S/N=20 in their Lyman alpha forest spectra, observable with
the blue arm of UVES in the 437nm setup. Due to the UVES detector upgrade the red
arm is not available within the target visibility period. Therefore, our programme
has been split into two runs for operational reasons. Both runs have identical science
goals and observing strategy.
All OBs for a given target have the same instrument setup and observational constraints.
The constraints meet Phase I specifications. Both targets are faint and require
several long integrations. Most OBs have execution times of 1h (1x3000s science
exposure + 600s overhead). The exposure time of the last OB (#14) has been adjusted
to fill the allocated time on target. We do not require calibrations other than
those provided by the UVES calibration plan.
Waiver Requests
Critical Observing Condition Constraints
According to the UVES ETC the observing conditions set in the constraints
box will yield the S/N specified in the User Comments field. Due to the faintness
of the targets, we have to combine several low-S/N exposures to obtain a S/N=20
in the wavelength range of interest. In case of degrading observing conditions it
should be checked that the data approximately meets our S/N requirement.
Time-Critical Aspects
Special Execution Requirements
We have no target priorities (no ranks applied). However, we prefer to
have the observations of one target completed before observing the next, because
the data quality (total S/N=20) is critical to reach our science goals.
Special Calibration Information
ToO Information
ToO Activators List
Do all your OBs comply with the instrument-specific requirements listed
on the instrument-specific Phase 2 web page ?
Do all your finding charts comply with both the general and instrument-specific
Phase 2 Web Pages ?
If you submitted OBs for standard stars, did you specify the magnitude
and spectral type of all standard stars in the OBs ?
Have you specified the S/N ratio at given wavelength in the User Comments
field of each OB?
Have you included OBs for any calibrations that you need but which are
not part of the Calibration Plan ?
If you are observing Moving Targets, have you attached suitable ephemeris
files to your OBs?
If you have preferences which OBs should be executed first, did you make
use of the User Priority field in the OBs ?
If this is a run that requires coordinated observations with other facilities,
did you give proper instructions in the Time-Critical Aspects Section ?
If you need secondary guiding, are there suitable objects within 30 arcsec
from your target ?
Last creation of page: Tue Oct 6 15:40:29 2009
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