README web version of /home/usg/OPS/MTS/readme_xml/readme_76072000

Principal Investigator Email Address

• rld@astro.ox.ac.uk

Estimated Total Execution Time (hours, including overheads)

• 11h58m

General Description

• This is a spectroscopic programme with NACO for the spiral galaxy NGC3705.
  
  We will keep in the 86mas slit both the AO-star and the target, the galaxy nucleus.
  
  This will allow us to closely monitor the AO-performance. 
  The provided position angle of the slit was derived from HST images, 
  and if the reference star is in the slit so should the nucleus of the galaxy. 
  Yet it this PA may need to be adjusted.
  
  It is essential for this program that the slit is well centered on the
  galaxy. Also based on previous NACO run, we know that NGC3705 has a 
  well defined center and regular nuclear isophotes of elliptical shape, 
  so centering should not be difficult.
  
  In any case it will be essential for us to reconstruct a posteriori
  the position of the slit, so we request the slit-illuminated image to
  be saved. Furthermore, should any of the spectroscopic OBs
  be executed one after one other, please make sure that the slit is
  still centered on the galaxy before starting a new ABBA sequence. 
  In our past Visitor Mode p72 and p74 run we have noticed that the 
  slit position could drift of 1-1.5 pixel over 1h. 
  The PA seemed stable, though.
  
  After the very first AB-cycle, please check that the neither the galaxy 
  nor the star fall too close to the border of the chip when nodding, and 
  that they do not overlap in the A-B image. This should not happen if 
  initially the slit center is between the galaxy and the AO star.
  
  We have provided also 3 calibration OBs, to obtain special telluric 
  standards, as we expect that our observations are likely to be carried out 
  in 3 nights. 
  
  Should our programme be executed over a longer period of time we will 
  rely on the standard telluric taken during the night calibration plan. 
  Could you only be so kind to please note the FWHM of your telluric
  stars once the AO-loop is close and before placing the slit. 
  It will be important to know how this compares with the slit-width.

Waiver Requests

• 076.B-0720A.01.WAV:
  A request for OBs up to 1.5 hours in length was submitted the 1-08-05
  and accepted the 2-08-05

Critical Observing Condition Constraints

• Good seeing conditions (<0".6) to ensure the best possible AO correction

Time-Critical Aspects

• There are no time critical aspects

Special Execution Requirements

• Just a suggestion to obtain a more efficient AO-correction.
  During our last VISITOR mode P74 run, we have found that by starting with
  as slightly overestimating brightness of the AO star, it is possible
  to iterate and obtain a better configuration.

Special Calibration Information

• To analyse our extended-source spectroscopic observations, the
  telluric standard stars need to be observed in a fashion that 
  closely mimick our science observations. In particular we 
  need the slit width to be uniformly illuminated by the light of the 
  telluric star. This will be achieved with the NACO_spec_obs_GenericOffset
  template, when keeping the tellutic star in the slit during a "sky" observation
  which by default will have the AO-loop open.
  
  We have added 3 telluric calibration observing blocks, estimating that our 
  programme can be carried out in 3 different nights. This template should be 
  observed shortly after NGC3705 (~30-45min) when with an airmass of z=1.3 it
  will parallell best the typical airmass of the NGC3705 observations (1.25-1.4)

ToO Information

• This is not a ToO programme.

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• ---(Empty)---

Source(s) of Pre-imaging

• ---(Empty)---

Pre-imaging sources not listed above

• ---(Empty)---

Do all your OBs comply with the instrument-specific requirements listed
 on the instrument-specific Phase 2 web page ?

• YES

If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
 Category for each Observing Template ?

• N/A

Do all your finding charts comply with both the general and instrument-specific
 Phase 2 Web Pages ?

• YES

If you submitted OBs for standard stars, did you specify the magnitude
 and spectral type of all standard stars in the OBs ?

• YES

Have you included OBs for any calibrations that you need but which are
 not part of the Calibration Plan ?

• YES

If you are observing Moving Targets, have you attached suitable ephemeris
 files to your OBs?

• N/A

If you have preferences which OBs should be executed first, did you make
 use of the User Priority field in the OBs ?

• YES

If this is a run that requires coordinated observations with other facilities,
 did you give proper instructions in the Time-Critical Aspects Section ?

• N/A

If you have PSF reference star OBs, do the names of those OBs begin with
 PSF_ ?

• N/A

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)
 ?

• YES

Have you clearly marked and labelled your wavefront reference objects
 R1, R2, R3, ... (as specified in the NAOS Preparation Software) on your Finding
 Charts ?

• YES

Have you specified the magnitude of the brightest object in the field-of-view
 for each OB ?

• YES

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
 ?

• NO

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 ?

• N/A