README web version of /home/usg/OPS/MTS/readme_xml/readme_71000414
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
We want to obtain second epoch observations for two NGC 247 fields,
already observed in P75, and observe 3 new fields in NGC 7793.
The scientific goal is the derivation of the mean J and K_s magnitudes
of Cepheid variables located in our fields. 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 resonably short, each of them was divided into three parts (e.g.
N7793-FI-K[1-3], etc). Please execute these three OBs one after another
on the same night and follow them immediately with the corresponding J band OB
of this particular field. One J,K_s shot should take about 4 hours.
We have selected three sets of standard stars from the UKIRT list (Hawarden
et al. 2001) to calibrate our NGC 7793 observations, assuming that each
of three fields selected in this galaxy will be observed on a different
night. For each of our NGC 7793 we need a full set of accompanying standard
star observations conducted on the same night (this is cruitial for our
project). Please note that NGC 247 OBs in principle do not need standar
star observations (we hope to calibrate them from observations performed
in the last observing period). However it would be very welcome if these
fields could be observed together with some standard stars as well.
The brightest stars in our fields have about 15 mag in the K band.
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
Special Execution Requirements
Please, observe a whole set of K_s, J observations for a given NGC 247
and NGC 7793 field. NGC 7793 OBs should be executed TOGETHER with a
full corresponding set of standard stars. Please observe as many as possible
standards (2-3) close-in time to the NGC 7793 observations (just before
in the middle and just after execution of the full set of OBs for a
given NGC 7793 field). The remaining standard star OBs can be executed 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
If you have comments, please contact usd-help@eso.org