README web version of /home/usg/OPS/MTS/readme_xml/readme_83078103
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
Information on submitted targets and AO TTS:
OB names R(TTS) target separation comments
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SINSZC_BX482_LGSAOSky_P84-# 15.4 K=19.5 50 arcsec H_alpha: line at 2.138um
SINSZC_BX610_LGSSEAOSky_P84-# N/A K=19.2 N/A H_alpha: line at 2.107um
The main characteristics of the observations are as follows.
- The target BX610 is to be observed in "seeing-enhancer" LGS-AO mode.
The Telescope Guide Star, which is also used for acquisition in this case,
has been pre-selected; it has R = 12.2 mag and K = 11.2, and is 6.5 arcmin
away from BX610.
- The PA has been carefully chosen for all targets, primarily for scientific reasons
as well as to ensure the tip-tilt reference source falls within the Field Selector
field of view (FOV) whenever relevant.
THIS PA SHOULD NOT BE MODIFIED.
- The Telescope Guide Star has been selected for all targets ("SETUPFILE" and
coordinates specified explicitely), to allow for accurate registration of
different OBs of a given target.
THE TGS SHOULD NOT BE MODIFIED (THE SAME TGS IS NEEDED FOR ALL OBS OF A GIVEN
SOURCE).
- The targets have the following priority:
1) BX482 : 10 OBs
2) BX610 : 10 OBs
- It is more important to complete all OBs of the first target before observing
the other target.
- OBs are named after the targets, with "-0", "-1", "-2", etc. appended for
different OBs.
- The "priority" flag is the same for all OBs of a given target; we would however
prefer, if possible, that the OBs are observed starting from "-0" and in increasing
number, as given in the OB name.
- The DITs for our exposures of our faint targets are 600s.
- The brightest spectral feature of the targets is H_alpha in emission;
the observed wavelength of the line is given in the table above.
- We are using the 100mas scale, with FOV of 3.2"x3.2", and the following strategy.
Our targets are extended in all directions based on previous seeing-limited mode
SINFONI data. For proper coverage of the entire source and proper background
subtraction, "sky" exposures away from the source are needed.
The observing sequence is "O S O O S O" where each "O" on-source pointing is
offset by about 0.2" along RA and DEC at positions around the target (giving
a "jitter box width" of about 0.4").
Remarks on the finding charts:
- The finding charts are provided for each target and OB, following the instructions
for SINFONI.
(1) The first ones (SINSZC_{source_mode}_fchart1.jpg) have wider FOV; a large
and
a small black square show regions 1' x 1' and 8" x 8" centered on the target;
the TTS is labeled "R1". The larger dashed rectangle shows the Strap Field
Selector FOV of the AO system.
(2) The second ones (SINSZC_{source_mode}_fchart2.jpg) are zoomed in on the target,
with the large and small solid-line squares showing regions of 8" x 8" and
3.2" x 3.2" centered on the target. In addition, two dashed-line squares
show the outline of the jitter box.
- In addition, a third finding chart is included for both targets
(SINSZC_{source_mode}_fchart3.jpg). It is similar to the zoomed
SINSZC_*_fchart2.jpg but based on higher resolution HST/NICMOS imaging.
Waiver Requests
Two Waiver Requests and one Instrument Setup Change Request were submitted:
183.A-0781D.01.WAV: Request for delayed submission of part of the OBs.
Submitted on Aug 2, 2009; Granted on Aug. 5, 2009.
183.A-0781D.02.WAV: Request for an increase of the OB execution time limit to 1h30.
Submitted on Aug 2, 2009; Granted on Aug. 5, 2009.
Instrument Setup Change Request: to use the new "Seeing-enhancer" mode of SINFONI.
Submitted on Aug 1, 2009; Approved on Aug. 5, 2009.
Critical Observing Condition Constraints
Transparency constraints:
- For all OBs, CLEAR sky transparency conditions is acceptable, as specified
in the proposal.
Moon constraints:
- For all targets, conforming to our proposal, there is no constraint on
lunar phase and so the illumination is set to 1.0.
- For one target, BX482, the TTS is faint (R > 15), however, so we have set the
constraint for moon distance to 50 degrees
(following recommendations from the ESO SINFONI P2PP Web pages through
http://www.eso.org/sci/observing/phase2/ConstraintsSet.html#InsSpec)
- For the other target, BX610, to be observed in "Seeing-enhancer" mode,
no reference star is used for Tip-tilt correction and since the artificial
star created by the LGSF has V ~ 11 mag (cf. SINFONI Users Manual), a moon
distance of >= 30 deg is acceptable.
Seeing constraints:
- Seeing < 0.8", as specified in the proposal.
Time-Critical Aspects
Special Execution Requirements
The PA specified in each OB is carefully chosen for scientific reasons,
and
to ensure that the AO reference star falls within the Field Selector FOV;
it should not be modified.
Likewise, the Telescope Guide Star has been selected for all OBs, and
should not be modified.
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 indicate the magnitude of the brightest object in the field in
each SINFONI OB?
If you are using the AO: Did you indicate for every OB the magnitude
of the guide star, and its distance to the target (if any)?
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?
Did you make really sure that none of your OBs ever saturates the detector?
If you are using the AO: did you enter the correct Strehl Ratio (on-axis,
K-band) AND the seeing value in the constraint set?
Last creation of page: Tue Oct 6 15:40:30 2009
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