| Tailored product |
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Any product modified to be different from its GOES-R required definition (e.g., sectorization, another format). A tailored product is no longer a GOES-R product. |
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| Tailoring |
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The modification of a product to a form other than one of the standard forms produced by the GOES-R program, as defined and agreed in a Ground Segment IRD. OSDPD is responsible for tailoring GOES products. |
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| Technical Performance Measurement System |
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The Technical Performance Measurement System is the system that will be used to track actual versus planned progress of critical performance and technical metrics. |
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| Technology Refresh |
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Upgrade or replacement of ground-based equipment and system support software to reflect advances in technology occurring throughout the mission lifecycle. |
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| Temperature Cycle |
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A transition from some initial temperature condition to temperature stabilization at one extreme and then to temperature stabilization at the opposite extreme and returning to the initial temperature condition. |
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| Temporal Coverage Qualifier |
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Provides product-specific limitations to the solar zenith angle coverage of the products. When the term Day is used in the temporal qualifier, Day is defined as solar zenith angles less than or equal to 96 degrees. When the term Night is used in the temporal qualifier, Night is defined as solar zenith angles greater than 96 degrees and includes the period of twilight. |
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| Theoretical Available Observable Data |
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Data collected during time periods when the instrument theoretically should be able to collect useful data |
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| Thermal Balance Test |
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A test conducted to verify the adequacy of the thermal model, the adequacy of the thermal design, and the capability of the thermal control system to maintain thermal conditions within established mission limits. |
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| Thermal-Vacuum Test |
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A test conducted to demonstrate the capability of the test item to operate satisfactorily in vacuum at temperatures based on those expected for the mission. The test, including the gradient shifts induced by cycling between temperature extremes, can also uncover latent defects in design, parts, and workmanship. |
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| TMON Rule |
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A TMON Rule defines the action to be taken when a red limit violation is detected. |
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| To Be Determined (TBD) |
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Information that is currently unknown or uncertain and must be proposed by the contractor. |
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| To Be Reviewed (TBR) |
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Statements, requirements, or values that are subject to review by the Government and the contractor. The requirement applies as written, and “TBR” indicates that the value may change upon review. Contractor may review and suggest a modified value and rationale for TBR values. |
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| To Be Supplied (TBS) |
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Information, data, or details to be supplied at a future time by the government. The government will provide a date or milestone to resolve each TBS requirement. |
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| Total Mass Loss (TML) |
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Total mass of material outgassed from a specimen that is maintained at a specified constant temperature and operating pressure for a specified time. |
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| Transmission rate |
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The total downlink or uplink data rate that includes the rate of observation data as well as coding or other overhead. |
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| Two Step Command |
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A command that requires a confirmation from the Space Operations Control Center (SOCC) once the command is initiated. |
