README web version of /home/usg/OPS/MTS/readme_xml/readme_79013500
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
(1) Brief Explanation for Our Observation
This is an integral field spectroscopy of 2 gravitationally lensed quasars
with 4 lensed images. The targets are WFI 2026-4536 and WFI 2033-4723.
OBs consist of 14 Science OBs and 4 Calibration OBs.
Science OBs consist of
5 OBs (with SPAXEL=0.25 and H+K-grating) for WFI 2026-4536 and
9 OBs (with SPAXEL=0.25 and J-grating) for WFI 2033-4723.
Actually, only 2 of 4 Calibration OBs are necessary
(see `Special Calibration Information' for details),
and the total execution time will never exceed 13.0 hours
(`Estimated Total Execution Time' shown in this README is the maximum value,
and will probably be less than the value).
(2) Requirement for Our Observation
For each target, OB number 1 (the name ends with `1') has to be observed
under PHOTOMETRIC condition at airmass < 1.3
(It is necessary to calibrate in flux the H_beta emission of our targets).
The remaining OBs can be observed under CLEAR condition (at airmass < 1.6) and
can be splitted over several nights, and even can be separated by weeks/months.
These OBs can be executed at any time during the period
(It is NOT necessary to execute them after OB number 1).
The photometric OB has to be preceeded or followed by ONE of the standard star
OBs
that we provided (see `Special Calibration Information' for details).
The targets are expected to be at the center of the IFU
for the first observation of the OB.
We have opted for a small dithering of the target in the IFU in order to
improve subsequently the spatial resolution.
The target should remain completely in the IFU for all science frames.
(3) Properties of Our Science Targets
Near-infrared magnitudes (J, H, and Ks) of the science targets are as follows,
WFI 2026-4536: 15.1, 14.8, 14.0
WFI 2033-4723: 16.3, 15.7, 15.2
These values are obtained from the 2MASS All-Sky PSC and are integrated over
the whole target.
Thus, each lensed image (target individual component) is expected to be
fainter than these values.
These target quasars are the brightest object in each OBs.
The continuum source must be a point source, but some of the emission lines
are expected to be extended.
The extention is rather unclear, but it would be below 2[arcsec].
(4) Other Practical Information
If there is a problem to contact with PI (e-mail address informed by this README),
please contact to Dr. Dominique Sluse, one of Co-I.
His e-mail address is
dominique.sluse@epfl.ch
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
Special Execution Requirements
Special Calibration Information
(1) General Description of Our Special Calibration
Since we need absolute flux of H_beta in target quasars for our scientific purpose,
we request one standard star observation per one target with the same instrument
setup
as the target.
It should be done ONCE JUST BEFORE OR AFTER THE FIRST EXECUTION of each target.
Only 2 of 4 Calibration OBs will be executed.
(2) Relation between Science OBs and Calibration OBs
Calibration OBs have to be observed just before or after the first photometric
observation of science OBs as follows,
[standard stars for WFI 2026-4536]
* IF a standard star is observed just BEFORE the first science OB of WFI 2026-4536,
HIP100556 should be observed by using an OB named `CAL_WFI2026_AM13_before'.
* IF a standard star is observed just AFTER the first science OB of WFI 2026-4536,
HIP105633 should be observed by using an OB named `CAL_WFI2026_AM13_after'.
[standard stars for WFI 2033-4723]
* IF a standard star is observed just BEFORE the first science OB of WFI 2033-4723,
HIP100556 should be observed by using an OB named `CAL_WFI2033_AM13_before'.
* IF a standard star is observed just AFTER the first science OB of WFI 2033-4723,
HIP105633 should be observed by using an OB named `CAL_WFI2033_AM13_after'.
(3) Details of the standard stars
Spectral types and magnitudes (V, I, J, H, and K) of the standard stars are as
follows,
HIP100556: B3II/III star, 6.76, 6.84, 6.96, 7.07, 7.04
HIP105633: B2/3V star, 8.01, 8.11, 8.25, 8.33, 8.32
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 15:40:18 2009
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