README web version of /home/usg/OPS/MTS/readme_xml/readme_78502800
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
This programme aims at determining the relative astrometry between resolved
dust features of the AGB star
IRC+10216 and an USNO astrometric reference star. The distance between this astrometric
reference star and
IRC+10216 is ~35".
ACQUISITION FOR SCI OB (Astrom10216): after the preset the bright "features" of
IRC+10216 should appear in
the center of the CONICA array. After NAOS setup, please move IRC+10216 to the middle
of the upper right
array quadrant, then the astrom ref star should appear on the lower left quadrant.
In the next step,
please center the astrom ref star on pixel x/y=284/284.
Please also check that IRC+10216 is not saturated(!) ... the acquisition uses the
same DIT as
the sci templates!
If IRC+10216 is saturated (or close to), please adjust DIT and NDIT in the sci templates!
SCIENCE TEMPLATES: The science templates move IRC+10216 and the astrom ref star
over the S54
field of view (using offsets and rotations) - both objects should ALWAYS be visible
in the field of view!!
At the end of the OB one short exposure with the S27 camera is taken, where IRC+10216
should be close to
the field center and the astrom ref star will be off the FOV.
CALIBRATION OBs: 2 OBs for plate scale/field orientation and distortion measurement
have been prepared
(named CAL_xxx). These OBs do not have to be executed during the same night as the
science OB, but during
the same service mode period, if possible (more precisely, no technical intervention
that could change
detector scale, orientation, instr focus, etc. must be inbetween science OB and
CAL OB execution!!)
IMPORTANT FOR OB CAL_galcenter: stars named IRSxxx on the attached FC are used for
astrometric reference,
hence these should always be in the FOV and not saturated
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
There are 2 calibration OBs (named CAL_xxx) that should be executed close
in time to the science OB
(Astrom10216). It is not a must to execute the CAL OBs during the same night as
the science OB, but during
the same service mode period, if possible (more precisely, no technical intervention
that could change
detector scale, orientation, instr focus, etc. must be inbetween science OB and
CAL OB execution!!)
Given that one calibration field is at RA=05h and the other at RA=17h, March is
the prefered month for
this prg.
Special Execution Requirements
Due to a problem of closing the loop on the ref source (USD-ticket of
March 06),
new aocfg configurations have been created. Three "alternative" OBs with different
aocfg files
are submitted (OB names reflect the differences). Please try first the point-source
option than the disk-like, than binary option.
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 have PSF reference star OBs, do the names of those OBs begin with
PSF_ ?
If there are Finding Charts attached to your OBs, is the field-of-view
of at least one of these charts 2' x 2' (with clearly labelled field orientation)
?
Have you clearly marked and labelled your wavefront reference objects
R1, R2, R3, ... (as specified in the NAOS Preparation Software) on your Finding
Charts ?
Have you specified the magnitude of the brightest object in the field-of-view
for each OB ?
Are there objects in any of your fields (including standard stars) which
are brighter than the limits specified in the User Manual and on NACO web Pages
?
If the previous answer is yes, have you given a list of OBs and a justification
for the brightness limit violation in the general description field ?
Last creation of page: Tue Oct 6 15:40:17 2009
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