README web version of /home/usg/OPS/MTS/readme_xml/readme_71000412
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
We want to observe 4 ISAAC fields through K_s and J filters in the galaxy
NGC 247.
The scientific goal is the derivation of the mean J and K_s magnitudes of Cepheid
variables located in these four fields. We want to get second-epoch observations
of field IV. These second-epoch observation should be obtained at least 10 days
after the
corresponding first-epoch observation of field IV, to allow for a significant
phase progression in the Cepheids. In order to reach a sufficient S/N ratio we
need long exposure times in the K_s filter. To keep our K_s OBs reasonably short,
each of them was divided into three parts (e.g. NGC247-FI-K[1-3]-N1, etc ). Please
execute these four OBs one after another on the same night and follow them immediately
with the corresponding J band OB of this particular field. We have selected four
sets of standard stars from the UKIRT list (Hawarden et al. 2001) to calibrate our
observations. For each of our NGC 247 fields we need a full set of accompanying
standard star observations conducted on the same night (This is cruitial for our
project). The brightest stars (background and not relevant for our project) in our
fileds have about 11.5 mag in the K band.
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
The repetition of the full K_s, J observing sequence for field IV
should be done at least 10 days later than the first-epoch
observation of this particular field, to ensure that there is sufficient
phase progress in the Cepheid variables.
Special Execution Requirements
Please, observe a whole set of K_s, J observations for a given NGC 247
field TOGETHER with a full corresponding set of standard stars, in one of the two
nights in which this field will be observed. Please observe as many as possible
standards (at least 2-3) close-in time to the NGC 247 observations (just before,
in the middle and just after execution of the full set of OBs for a given NGC 247
field).
The remaining standard star OBs can be executed at any time during the same night.
Special Calibration Information
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 submitted OBs for standard stars, did you use the provided StandardStar
templates ?
If you are using a specific offset pattern or position angle, did you
check carefully the definition in the manual ?
If you are doing spectroscopy, did you draw the slit on the Finding Charts
?
Did you enter the magnitude of the brightest star in the field-of-view
in each OB ?
If you use the MoveToPixel acquisition, have you given clear instructions
on the FC and in the OB comment section as to how the field should be centered ?
Last creation of page: Tue Oct 6 15:40:06 2009
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