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ISS Research Accommodations Status 4 December 2002 (Data through 30 November 2002)

Status Report From: Johnson Space Center
Posted: Wednesday, January 15, 2003

Source: ISS Monthly Program Review, Vol. 127, 6 December 2002

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ISS Research Accommodations Status 4 December 2002 (Data through 30 November 2002)

Definition of Terms and Status Levels

U.S Research Investigations Accommodated

U.S. Investigator: The principal person selected or approved by NASA to conduct a research investigation on-board ISS.

No. Of Investigations (Cumulative) and Total Number of Investigations to Date: The cumulative number of U.S.-sponsored investigations carried out on ISS to date. This number also includes any international investigations conducted within U.S.-provided accommodations as part of agreements with the ISS international partners. If an investigation requires experimentation on more than one increment, it is counted only once. The cumulative number is plotted at the date of each Shuttle flight to ISS, which is when new investigations are added.

Source: The Investigator Master List, maintained by the Lead Increment Scientist, provides the number per increment. The Increment Scientist also provides the cumulative number per Shuttle flight.

Increment Length: The time period that an expedition crew is on orbit. It is measured from their launch date to their ISS undock date, and is documented in the Increment Definition Requirements Document (IDRD) Flight Program Definition matrix.

Research Objectives Accommodated through Increment X: The percent of research objectives accommodated for each investigation is calculated, then the values are averaged together to determine percent of research objectives accommodated through Increment X.

Source: Accommodated Research Master List, maintained by the Lead Increment Scientist.

Total Investigation Duration to Date: The time that an investigation takes advantage of the effects of the space environment (microgravity, radiation, vacuum, vantage point, etc.) in the conduct of the research. The time starts with investigation setup and ends with investigation take-down or deactivation. The times calculated for each investigation are added together to produce this Total Investigation Duration to Date.

Source: The Increment Scientist assisted by investigation payload planners at NASA/Marshall Space Flight Center using Final Payload On-Orbit Operations Summaries, Payload Operation Integration Function (POIF) Crew Training Overviews, and Payload Tactical Plans.


ISS Research Accommodations Status 4 December 2002 (Data through 30 November 2002)

Human Research Investigation Duration to Date: The time that a human life sciences investigation takes advantage of human subjects being exposed to the space environment. The times calculated for each investigation are added together to produce this total Human Research Investigation Duration.

Source: The Increment Scientist assisted by investigation payload planners at NASA/Marshall Space Flight Center using Final Payload On-Orbit Operations Summaries, POIF Crew Training Overviews.

Crew-Tended Research Time: The cumulative hours of that the ISS crew performs U.S.-sponsored research investigations, including time both within and outside of the normal workday.

Source: 'Actual' crew time is documented in the Summary Crew Tracking Matrix, provided by the Payload Operations Integration Center (POIC).

Research Objectives Accommodated Per Increment: Each investigation may have several objectives, experiments, or steps to be carried out during an increment. The percent actually accommodated by the ISS is calculated for each investigation, then all investigations during the increment are averaged together to determine the per increment value. Only the performance of ISS to accommodate the investigation is measured, independent of the performance of the experiment hardware.

Source: Accommodated Research Master List, maintained by the lead increment scientist.

Number of Investigations Planned Per Increment: The number of U.S.-sponsored investigations planned 12 months in advance for an increment, including both new and continuing investigations occurring during that increment.

Source: Same as above.

Number of Investigations Executed Per Increment: The number of U.S.-sponsored investigations actually carried out during an increment, including both new and continuing investigations. Source: Same as above.


ISS Research Accommodations Status 4 December 2002 (Data through 30 November 2002)

Status Level Definitions

Research Objectives Accommodated (%)

Green: 90% or more of research objectives accommodated.

Yellow: 80-90% of research objectives accommodated.

Red: Less than 80% of research objectives accommodated.

Number of Investigations Executed Per Increment

Green: 90% or more investigations executed.

Yellow: 80-90% of investigations executed.

Red: Less than 80% of investigations executed.


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