README web version of /home/usg/OPS/MTS/readme_xml/readme_78049400

Principal Investigator Email Address

• ben@astro.UCLA.EDU

Estimated Total Execution Time (hours, including overheads)

• 12.0

General Description

• Simple Astrometric Coronographic observation using the C_0.7 masks in
   Ks with S27 and S13 cameras. 
  
  The purpose of this program is to conduct follow-up observations of very faint companion
   candidates detected around 10 bright stars during previous observing campaigns with
   VLT/NACO and HST/NICMOS. In all cases, the gap between the first epoch of observations
   and the period 78 is >1.5 yrs.  The proper motion of all 10 stars is large enough
   to verify, unambiguously, whether the candidates are true comoving companions or
   stationary background objects.
  
  All stars are their own AO reference star, except HIP21632 B where AO reference
   star will be HIP21632 A.
  
  Name	        SpT	V	K
  --------------------------------------------    
  HIP3556		M3	11.9	7.623
  GSC08056-00482	M3	12.1	7.501
  HIP1113		G6V	8.7	6.949
  HIP1481		G0V	7.5	6.149
  HIP30314	G3V	6.5	5.045
  HIP26373	K0V	8.3	5.811
  HIP76768	K7	10.2	6.948
  HIP58285	F5	11.4	6.95
  V343NorB        M4      14.8    9.19
  HIP21632B	M3V	>14	10.413 (HIP21632A as AO ref star)
  
  To complete this program, we are using a coronographic OB dedicated to astrometric
   observations.
   This OB is composed of :
  1- ACQ: place the bright star behind the mask (Ks + ND).
  2- OBS: coronographic observations without offsetting the star in Ks
  3- OBS: classical imaging observation in Ks+ND, where the first offset positions
   will give us the star position behind the mask
  4- OBS: coronographic observations of the sky in Ks
  
  A special astrometric calibrator must be observed ONE WEEK before/after each science
   object. PLEASE CENTER PROPERLY THE ASTROMETRIC CALIBRATOR FIELD as requested on
   the FINDING CHART. 
  
  Special calibrations are also required in daytime to measure the filters shift between
   Ks+Neutral Density and Ks, using the same CONICA observing set-up and CONICA pinholes
   with the calibration lamp.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• none

Time-Critical Aspects

• A special astrometric calibrator must be observed within ONE WEEK for
   each science object. PLEASE CENTER PROPERLY THE ASTROMETRIC CALIBRATOR FIELD as
   requested on the FINDING CHART.

Special Execution Requirements

• none

Special Calibration Information

• A special astrometric calibrator must be observed within ONE WEEK for
   each science object. PLEASE CENTER PROPERLY THE ASTROMETRIC CALIBRATOR FIELD as
   requested on the FINDING CHART. 
  
  Special daytime calibrations is also required in daytime to measure the filters
   shift between Ks+Neutral Density and Ks with S27 or S13 depending on the camera
   used. This can be done using the same CONICA observing set-up and CONICA pinholes
   with the calibration lamp.

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 ?

• N/A

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 ?

• 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 ?

• 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
 ?

• 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