README web version of /home/usg/OPS/MTS/readme_xml/readme_81002000

Principal Investigator Email Address

• tratzka@aip.de

Estimated Total Execution Time (hours, including overheads)

• 10.0 + 0.5 (for additional execution time of observations without Coude
   guiding)

General Description

• These are MIDI observation of T Tauri stars in Chamaeleon and Ophiuchus.
  
  Since the run was not scheduled in visitor mode, we've carefully checked the N-band
   fluxes of our science targets. Assuming visibilities between 0.7 and 0.9 (more precise
   predictions are not possible) the following values have been found:
  
  Source		Flux (12 mu)	Correlated Flux		Reference
  Ced 110-IRS 2	0.32 Jy		0.2 ... 0.3 Jy		Prusti et al (1992) --> too faint
  CR Cha		1.12 Jy 	0.8 ... 1.0 Jy		Prusti et al (1992) --> in OB 1 Jy assumed
  CT Cha		0.70 Jy 	0.5 ... 0.6 Jy		Prusti et al (1992) --> too faint
  CV Cha		1.92 Jy 	1.3 ... 1.7 Jy		Prusti et al (1992) --> in OB 1.3 Jy assumed
  LHa 332-17	2.20 Jy 	1.5 ... 2.0 Jy		Prusti et al (1992) --> in OB 1.5 Jy assumed
  Sz 32		4.80 Jy 	3.4 ... 4.3 Jy		Prusti et al (1992) --> in OB 3.4 Jy assumed
  
  Source		Flux (10.8 mu)	Correlated Flux		Reference
  DoAr 20		7.38 Jy		5.2 ... 6.6 Jy		IRAS (12 mu)		--> in OB 5.2 Jy assumed
  Elias 24	2.57 Jy		1.8 ... 2.3 Jy		Barsony et al. (2005)	--> in OB 1.8 Jy assumed
  Elias 29	23.7 Jy		16.6 ... 21.3 Jy 	Barsony et al. (2005)	--> in OB 16.6 Jy assumed
  Elias 30	1.73 Jy		1.2 ... 1.6 Jy		Barsony et al. (2005)	--> in OB 1.2 Jy assumed
  Haro 1-16	1.2 Jy		0.8 ... 1.1 Jy		Schegerer et al. (2006)	--> in OB 1 Jy assumed
  HD 143006	0.86 Jy		0.6 ... 0.8 Jy		IRAS (12 mu) 		--> too faint
  WL 16		5.94 Jy		4.2 ... 5.3 Jy		Barsony et al. (2005)	--> in OB 4.2 Jy assumed
  
  However, since theses sources are variable and not well studied in the mid-infrared,
   the actual uncorrelated flux may be different.

Waiver Requests

• A waiver request to observe the target Elias 29 without Coude guiding
   has been accepted. This target is too faint and no suitable guide star is present
   in the field. The corresponding calibrator OBs also do not utilise MACAO. This may
   ensure the same instrument performance for the calibration as for the science observations.
   
  
  In the case of WL 16 previous measurements predict a B-magnitude of 14.3 mag. However,
   probably due to its variability the target cannot be detected at any wavelength
   in the DSS catalogue. Therefore, we submitted two sets of OBs for WL 16 and the
   corresponding calibrators. One set with Coude guiding (assuming V=14.3 mag for WL
   16) and one without MACAO (no other suitable guide star is present around WL 16).
  
  OBs without MACAO have the suffix "NOAO" and priority 2.

Critical Observing Condition Constraints

• none

Time-Critical Aspects

• none

Special Execution Requirements

• none

Special Calibration Information

• For some sources two calibrators have been submitted to cover the whole
   LST range suitable for the science target. 
  
  The proposed calibrators HD 98292, HD 102839, and HD 151011 are not inlcuded in
   the "CalVin"-database. The source of diameter estimate is the 'MIDI calibrator list'
   (B. Stecklum et al.)
  
  HD98292:
  Position =  11 17 19.0400 -67 49 24.6000
  Diameter =  3.03 +- 1.75 marcsec
  Spectral Type: M2III
  Vmag = 6.09 mag
  Hmag = 1.42 mag
  N (IRAS) = 11.8500 Jy
  Simbad Remark: Variable Star
  
  HD102839:
  Position =  11 49 56.6100 -70 13 32.9000
  Diameter =  2.01000 +- 0.560000 marcsec
  Spectral Type: G6Ib
  Vmag = 4.99 mag
  Hmag = 2.11 mag
  N (Iras) = 5.86 Jy
  Simbad Remark: Star
  
  HD151011:
  Position =  16 45 30.1800 -19 8 12.9000
  Diameter =  2.77 +- 0.62 marcsec
  Spectral Type: K5II
  Vmag = 6.67 mag
  Hmag = 1.85 mag
  N (IRAS) = 8.57 Jy
  Simbad Remark: Variable Star

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 ?

• 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

Did you indicate for each science star OB the corresponding calibrator
 star OB (and vice versa) in the 'Instrument Comments' field ?

• YES

Did you check that your chosen calibrator is bright enough for the instrument
 mode used ?

• YES

If you use calibrator stars which are not in the CalVin database, did
 you specify their characteristics in the README file and in the OBs ?

• YES

Did you verify that your coordinates are as accurate as possible (2Mass
 coordinates recommended) and that they include proper motions if available ?

• YES

Did you specify the LST range of the calibrators such that they cover
 the range from 30 min before the start of the LST range of the science target to
 30 min after the end of the LST range of the science target ?

• YES