Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/instruments/ins_mstr_sched/stis/STIS_Faint_Stds_Data_Sheet.doc Дата изменения: Wed Oct 19 17:48:44 2005 Дата индексирования: Sat Dec 22 21:29:03 2007 Кодировка: Поисковые слова: hawaii

HST INS Work Item Data Sheet

1. SI/Title: STIS/Faint Standards Extension

2. INS Lead: L. Dressel

3. Description of Work:
This activity involves analysis of CCD spectra of (faint) white dwarfs
which were previously identified and verified as bona fide
spectrophotometric standard stars. The purpose of this analysis is to
provide a thorough verification of the previously established CTE
corrections for CCD spectroscopy, namely by stepping the target along
the slit (5 positions) with two (short) exposure times. This will
verify the results using the two-amplifier readout method, and provide
high-S/N data at low intensity levels and low background level. This
activity involves the writing of one ISR and may also involve an update
of the CTE parameters in the CCD Table Reference File, if necessary.

4. Schedule Constraints and Dependencies:

5. Risks and Open Issues:

6. Priority: High

7. Priority Justification:


8. Resources (including estimated calendar duration for each portion):
a. Requirements
STIS Instrument Scientist

b. Development
STIS Instrument Scientist
CDBS Administrator

c. Testing
STIS Instrument Scientist
CDBS Administrator

9. Documentation and Deliverables:
Calibration ISR
CDBS Reference File(s) Delivery