README web version of /home/usg/OPS/MTS/readme_xml/readme_79080400
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
This is a simple LSS programme on a faint (V~21) Supernova of type Ia,
aimed at covering one single epoch at about one year after the explosion.
It includes 6 OBs subdivided into LSS (5 OBs) and BV imaging (1 OB).
The exact brightness of the target is not known, but it is expected to be around
V=21. The finding charts provided with the OBs have been produced using archival
FORS1 images on which an artificial star with the suitable magnitude and at the
precise SN positions has been added.
While the position is accurate to within 0.1 arcsec, the actual brightness of the
SN might be different from what is reported by the finding charts.
Note that we have supplied two f.charts, one with a 4'x4' field-of-view and a 40"x40"
zoom,
where the target and the neigboring objects are clearly visible.
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
Special Execution Requirements
If possible, once the programme is started, it should be completed within
7-10 days.
If the OBs are executed in pairs, the program will be completed in 3 separated nights.
Ideally, the imaging OB should be executed just after or just before one of the
LSS OBs.
We are aware that, due to operational issues, this might not be the case.
Special Calibration Information
Science observations are done with the 300V grisms without Order Sorting
filter, since the flux in the blue end of the spectrum is very low and hence we
do not expect any measurable second order contamination above 6500A.
As foreseen by the Calibration Plan, the specphot standard stars will be observed
with the same setup. This can be a problem if the specphot star is very blue, as
it often happens. This would of course turn into a wrong sensitivity function and
hence into a wrong flux calibration of
our science data.
For this reason, we kindly ask the night astronomers to observe the specphot standard
star
without the Order Sorting filter (as foreseen by the Calibration Plan) and to repeat
the
exposure WITH GG435 each time this is possible and does not interfere with normal
operations.
We will then combine both observations (with and without OS filter) to derive a
more accurate sensitivity function.
ToO Information
ToO Activators List
Is this a Pre-imaging run ?
Pre-imaging Requirements
Source(s) of Pre-imaging
Pre-imaging sources not listed above
Do all your OBs comply with the instrument-specific requirements listed
on the instrument-specific Phase 2 web page ?
If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
Category for each Observing Template ?
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 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 have prepared your finding charts with tools other than FIMS,
do they comply with the specifications on the FORS1 Phase 2 web page ?
Last creation of page: Tue Oct 6 15:40:20 2009
If you have comments, please contact usd-help@eso.org