README web version of /home/usg/OPS/MTS/readme_xml/readme_84065601

Principal Investigator Email Address

• apai@stsci.edu

Estimated Total Execution Time (hours, including overheads)

• 0.99

General Description

• This program targets the bright star HR 8799 around which three planets
   have been recently imaged.
  The science goal of the program is to search for and measure photometric variability
   of the three
  planets using NACO. 
  
  The current SM program provides an additional data point to the longer VM run and
   thus extends
  the temporal baseline over which variations can be studied.
  
  Brightest star in the field of the OB:
  HR8799             V=5.96   K=5.2
  
  Observations:
  Only a single filter (Ks) is used. The OB acquires the target and should move the
   source to the upper right corner of the field.
  After this, the science template will use a 4-point dithering pattern, placing the
   science target on the four corners of a 6-arcsec
  square centered on the center of the chip. After two rounds, the field is rotated
   by 30 degrees and the cycle is repeated.
  
  Saturation:
  The target star slightly exceeds the brightness limit (V=5.96 mag vs. V=6.00) and
   the PSF core is expected to
  saturate under ideal observing conditions. This does not influence the science goals
   and it is ideal.
  Because the science targets (the three planets) orbiting the target star are faint,
   a broad-band filter is the optimal
  choice for carrying out these observations even if the central star's core is saturated.
  
  WARNING:
  Due to the bright source (K=5.2) some persistence effects may occur and there may
   be a need to switch to
  another instrument for the observations that follow this OB. A waiver request was
   approved for the observations.
  
  The target star serves as its own wavefront reference star.

Waiver Requests

• Waiver request was approved to observe the target (K=5.2) which exceeds
   the broad-band brightness limit.
  
  WARNING:
  Due to the bright source (K=5.2) some persistence effects may occur and there may
   be a need to switch to
  another instrument for the observations that follow this OB. A waiver request was
   approved for the observations.

Critical Observing Condition Constraints

• None (beside the <0.8" seeing and the photometric sky transparency).

Time-Critical Aspects

• Please, DO NOT execute this OB on the SAME NIGHT as 084.C-0656(C).

Special Execution Requirements

• Please, DO NOT execute this OB on the SAME NIGHT as 084.C-0656(C).

Special Calibration Information

• No special calibration needed.

ToO Information

• ---(Empty)---

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 ?

• N/A

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

• N/A

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 ?

• N/A

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
 ?

• YES

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 ?

• YES