README web version of /home/usg/OPS/MTS/readme_xml/readme_79071800
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
SCIENCE : Follow-up of two bright (V=7.2-7.9) early type SB2 binaries
with periods around or over 1yr. (We have finished one object in P77, thanks!)
QUALITY REQUIRED: S/N >=250 . This is a critical aspect of the program.
OBJECT OBSERVABILITY : observable the whole P79, though only a couple of hours at
z<2 in Sept.
OBSERVING STRATEGY : the observation should be spread throughout P79, the frequency
should be as followed (on best effort basis):
****************************************************************************************
HD152247: 1 spectrum every 3 weeks (minimal separation between 2 spectra: 14 days
).
Recommanded dates are indicated in the OB name. Large gaps due to MPG
time will
be covered with UVES.
HD152314: 1 spectrum every 1.5 months ( minimal separation between 2 spectra: 1
month )
****************************************************************************************
If the previous strategy is not possible (because eg of weather. ...), try to spread
the observations as much as possible over the period. In any case, it is useless
to get spectra separated by less than 12/25 days respectively. So, don't waste the
time and do something else.
Note: HD152246: 1 spectrum at any point during the period. Lower priority.
Waiver Requests
Critical Observing Condition Constraints
The present sources are reasonably bright, this program can thus be performed
in about all seeing and cloud coverage conditions as long as a S/N > 250 is reached.
Target can be observed during twilight. Exposure times were computed for thin
cirrus coverage and seeing below 2" (as accepted by the OPC).
If this program is adopted as a backup program in the case of bad weather conditions
(very thick cirrus, awful seeing, large airmass) which prevent any other observations
and you don't want stay idle, please increase the exposure time accordingly. Summing
up several successive exposures to achieve the requested S/N is a valid option.
In any case, whatever the observing conditions, we will extract useful information
from our spectra only if the requested S/N > 250 is reached.
Time-Critical Aspects
Special Execution Requirements
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 ?
Did you set 'New Preset' flag in all acquisition templates to 'True'?
If you use any lamp, did you check that it should never be left on at
the end of any OB?
Last creation of page: Tue Oct 6 15:40:20 2009
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