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HST INS Work Item Data Sheet

1. SI/Title: WFC3/Pipeline Update for IR Channel

2. INS Lead: Howard Bushouse

3. Description of Work:
Audit the ACS pipeline status to identify changes that need to migrate
to the WFC3 pipeline.

Determine and document the requirements and algorithms needed to
properly process the detector data for the as-built instrument.
Determine and document requirements for keyword changes, possibly
including the QEKEYWORD relation fields (implying possible TRANS work).
Modify the pipeline code, CALWFC3A, with the new algorithms and
keyword needs. Update the TRANS code if QEKEYWORD changes are needed.
Test the new implementations.

The basic pipeline structure should be unaffected. The changes will be
concentrated on the IR channel.

4. Schedule Constraints and Dependencies:
Work must start after the IR channel Thermal Vacuum Test (TV3; January
2007), so the start date would be approximately March 2007.

Requirements depend on the flight IR detector as installed in the
instrument.

5. Risks and Open Issues:
Open Issue - The detector level corrections are not yet known since no
flight detector has been chosen.

6. Priority: High

7. Priority Justification:
Needed at launch to support SMOV and ERO data.

8. Resources (including estimated calendar duration for each portion):
a. Requirements
WFC3 IPT

b. Development
CALWFC3A Developer (Bushouse; 1 FTE for 1 year)
TRANS Developer

c. Testing
WFC3 IPT (Data Analyst 0.5 FTE; some Scientist effort)
OPUS Test Engineer
TRANS Test Engineer

9. Documentation and Deliverables:
Requirements Document
Design Review
CALWFC3A Code Delivery
TRANS Code Delivery
Test Report