| Off-gassing |
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The emanation of volatile matter of any kind from materials into a manned pressurized volume. |
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| Off-line development |
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The build-up and testing of components for an operational system without interference with the operational system. |
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| On-orbit check-out location |
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90 degrees West Longitude |
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| On-orbit storage location |
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105 degrees West Longitude |
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| Open |
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An attribute of a hardware or software system’s design such that it employs modular design tenets and uses widely supported, consensus-based, and non-proprietary standards for its key interfaces, operating systems, data formats, and languages. |
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| Operational |
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A status designation that indicates readiness, capability, and authorization to support or conduct mission operations. Also a descriptive term to refer to something in an operations-like state or configuration. |
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| Operational Activation |
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Activation of a satellite from a non-operational state (e.g., storage) to a state that is able to perform full mission operations. |
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| Operational Availability |
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teady-state availability through the GOES-R series operational lifetime, averaged over 30 days, including the GOES-R facilities and networks (to the extent of the demarcations defined in the applicable IRDs). |
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| Operational Lifetime |
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GOES-R series operational lifetime begins immediately after instrument check-out of the first satellite on-orbit and extends through the operational usage of a OES-R series satellite (providing at least partial CONUS coverage) (TBR) while meeting the mission availability requirements. |
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| Operational Loads |
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The expected on-orbit structural loads |
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| Operations |
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See Mission Operations |
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| Operations Concept |
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A concept that defines how the GOES-R system will be verified, launched, commissioned, operated, and disposed. Defines how the design is used to meet the requirements. If separate concepts for maintenance and testing are not provided, then these items are also included in the operations concept. |
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| Operator |
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Authorized and certified personnel who operate the Ground Segment according to their operator role and privileges (e.g., flight and ground controller, mission planners and scheduler, ground systems engineer). |
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| Orbit Reference Frame |
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Refer to the General Interface Requirements Document (GIRD). |
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| Organization Head |
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The head of any organization needing to establish configuration management procedures. Examples include project managers, project scientists, branch heads, Directors of, etc. |
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| Outgassing |
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The emanation of volatile materials resulting in a mass loss and/or material condensation on nearby surfaces. |
