README web version of /home/usg/OPS/MTS/readme_xml/readme_79068000

Principal Investigator Email Address

• oberg@strw.leidenuniv.nl

Estimated Total Execution Time (hours, including overheads)

• 32

General Description

• The objective of this program is to observe the solid methane band at
   7.7 um in 9 low mass young stellar objects (YSOs). Two of these YSOs (RNO 91 and
   R CrA irs 5) are also observed for the solid methanol band at 9.7 um. 1-4 science
   OBs and an equivalent number of standard star OBs are associated with each target.
   The targets and the wavelength ranges that should be observed are:
  
  Science target		Flux 7.7/9.7 um	wavelength range	Number of OBs
  2massj171123-2724315	1.5 Jy		7.1-8.7 um		2 OBs
  CK 2 			0.3 Jy		7.1-8.7 um		3 OBs
  Elias 16		2.2 Jy		7.1-8.7 um		1 OB
  IRAS 17081-2721		0.3 Jy		7.1-8.7 um		3 OBs
  IRS 51			2 Jy		7.1-8.7 um		1 OB
  R CrA 5A		1.9/1.0 Jy	7.1-8.7, 9.0-10.6 um	1+1 OBs
  R CrA 7B		1.3 Jy		7.1-8.7 um		2 OBs
  RNO 91			1.6/0.8 Jy	7.1-8.7, 9.0-10.6 um	2+2 OBs
  SVS 4-5			0.3 Jy		7.1-8.7 um		4 OBs
  
  
  The GSC-2 was checked for suitable guiding stars and guiding stars with V < 13
   mag exist within 7.5' for all targets, except for Elias 16. Elias 16 does have a
   guiding star with V ~ 14 mag within 8' and a guding star with V ~ 13 mag within
   15', however.
  
  Most targets should be observed with the normal slit position N-S. R CrA 5a needs
   the slit to be rotated to accomodate observations of R CrA 5b simultaneously. The
   coordinates of the additional target is indicated in the OB and the approximate
   slit position in the finding chart. HR 5953, HR 2884, RNO91 and SVS 4-5 require
   a slit rotation of 270 degrees to avoid overlap with other sources.
  
  2MASSJ17112317-2724315, CK2, IRAS 17081-2721, R CrA 7b and R CrA 5 finding charts
   were generated from IRAC 8 um images. Elias 16, IRS 51, RNO 91, SVS 4-5 and all
   standard star finding charts are generated from 2MASS Ks band (2.2 um) images. For
   these targets the brightest source in the field of view at 8.1 and 9.8 um is the
   science target.

Waiver Requests

• A waiver to exchange two of the originally proposed targets was granted.

Critical Observing Condition Constraints

• The spectra should be acquired during clear conditions with an airmass
   of 1.5 or less. For Elias 16 a higher airmass of up to 2.0 is acceptable.

Time-Critical Aspects

• No time-critical aspects apply.

Special Execution Requirements

• ---(Empty)---

Special Calibration Information

• The spectra require the observations of telluric standards either just
   before or after the science observation. It is preferred that the standard is observed
   within 0.1 airmass of the source when possible. Below is a complete list of which
   standard should be used with each science target:
  
  Science target		Standards
  
  2massj171123-2724315	HR 5953
  CK 2			HR 7557
  Elias 16		HR 2484
  IRAS 17081-2721		HR 5953
  IRS 51			HR 5953
  R CrA irs 5a		Alnair
  R CrA irs 7b		Alnair
  RNO 91			HR 5953
  SVS 4-5			HR 7557

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 ?

• 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 ?

• 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 the provided finding chart is at a different wavelength than the observations,
 did you clearly describe in the README file how to identify the target?

• YES

Did you specify a guide star brighter than V=12mag within a field of
 r=5arcmin around the science target?

• NO