README web version of /home/usg/OPS/MTS/readme_xml/readme_77012601

Principal Investigator Email Address

• boehnhardt@mps.mpg.de

Estimated Total Execution Time (hours, including overheads)

• 3h55m

General Description

• Primitive Dust in Oort Cloud Comet C/2004 B1 (LINEAR)
  
  Run B: EMMI imaging and spectroscopy
  
  This comet program consist of an imaging and a red&blue arm longslit spectrocopy
   part. Ideally, both parts should be performed together once in a single night, and
   they should be repeated during another night, i.e. all OBs labeled "night1" in the
   first night, those with label "night2" in the second night. Solar analog star spectra
   are also required for nights with comet spectra.
  
  IMPORTANT: Please execute OBs "night1" on 15-25 May, OBs "night2" on 27 May - 3
   June 2006 parallel to Spitzer obs.
  
  Comet coordinates (approx. RADEC for mid May 2006 are given in the OB), differential
   velocity, and - for spectroscopy only - rotator angle are to be updated from the
   ephemeris file before OB execution.
  
  Brief cookbook for comet OBs:
  
  - select OB to be executed
  - enter RADEC coordinates for epoch closest in time to start of OB (ephemeris columns
   "RA" and "DEC")
  - enter differential RADEC velocity for epoch closest in time to start of OB (ephemeris
   columns "Vel_RA" and "Vel_DEC")
  - for spectroscopy only: enter rotator angle for epoch closest in time to start
   of OB (ephemeris column "Rotator")
  - start OB

Waiver Requests

• No Waiver Request was submitted.

Critical Observing Condition Constraints

• Please perform per night only
  - one imaging OB of the comet
  - two red arm spectroscopy OBs of the comet
  - two blue arm spectroscopy OB of the comet
  - one red arm spectroscopy OB of the solar analog star
  - one blue arm spectroscopy OB of the solar analog star
  - the usual EMMI calibration plan OBs adequate for this program
  
  Environmental conditions:
  Sky = CLR
  Seeing = n
  Moon = f

Time-Critical Aspects

• This run should be executed during two nights as close as possible in
   time to our Spitzer observations currently scheduled between 15 - 25 May 2006 (OBs
   labeled "night1") and 27 May - 3 June 2006 (OBs labeled "night2"). We will communicate
   the exact date of the Spitzer observations as soon as they become available to us.

Special Execution Requirements

• The central part of the coma must not be overexposed. Since comets are
   notoriously unpredictable in their brightness, we can't guarantee for sure that
   the carefully chosen integration times in the OBs will be safe against saturation
   of the cometary coma. If saturation occurs, feel free to shorten the integration
   time appropriately.

Special Calibration Information

• In nights where comet spectra are taken, a solar analog star needs to
   be observed with the same instrument setting. Special CAL OBs are submitted. The
   usual EMMI calibration plan frames are needed in addition.

ToO Information

• not applicable

ToO Activators List

• not applicable

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• not applicable

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?

• YES

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 ?

• YES