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| This user manual includes overviews, procedures and reference for executables, directories and files associated with the SPC (Stereophotoclinometry) software. | The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) mission will return the first pristine samples of carbonaceous material from the surface of a primitive asteroid. OSIRIS-REx’s target asteroid (101955) Bennu is the most exciting, accessible, volatile, and organic-rich remnant from the early solar system, as well as one of the most potentially hazardous asteroids known. |
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| This manual applies to SPC software version _____. | After launching in September 2016, OSIRIS-REx begins a two-year cruise to Bennu that includes an Earth flyby in September of 2017. OSIRIS-REx detects Bennu 60 days in advance of rendezvous and surveys its environment for natural satellites and other hazards. OSIRIS-REx then spends the next 7 months characterizing the surface and orbital environment of Bennu. Four candidate sample sites are characterized with OSIRIS-REx’s instrument suite and the Touch-And-Go (TAG) maneuver sequence is practiced. In October 2019, OSIRIS-REx executes the TAG maneuver and collects both bulk and surface samples. After a period of quiescent drifting away from Bennu, in March of 2021, OSIRIS-REx begins its return journey to the Earth. Following a 2.5 year return cruise, the Sample Return Capsule (SRC) is released, re-entering Earth’s atmosphere and landing at the Utah Test & Training Range in September of 2023. |
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| == Who This Manual Is Intended to Help == | == SPOC Overview == The Science Processing and Operations Center (SPOC) is the centralized location for all OSIRIS-REx science data processing during the operational phases of the mission. |
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| The SPC User Manual is intended for users who have training and experience using one or more of the programs included. (./) Do we want to include a bullet list of general knowledge assumed? Or maybe list what is not assumed?? This manual does not provide detailed trouble shooting assistance. (./) I think I need wording here on how that's expected to be handled. == What This Manual Includes == Each procedure or reference entry * provides a general description of the item * lists related files, directories, or programs * explains input, output, or contents * shows samples of input, output, or contents Some entries include additional references and more detailed information. == How This Manual Is Organized == === Part I: Overview === This section provides an overview of SPC and the purpose of the software. === Part II: How Tos === This section organizes the common activities the software is used to achieve into blocks of specific procedures. === Part III: Reference === This part includes reference entries for executables, directories and files. It is arranged alphabetically and subdivided into these sections: * Programs * Directories * Files * Input * Output * Support == How Standard Items Are Identified == Throughout this manual, we have used these systems for marking the items we discuss: * '''Names of programs, directories, and files''' - These usually appear as __hypertext links__ because they are entries in this manual. In the interactive version of the manual, you can click on the link to find out more specific information. * '''Names of programs, directories, and files''' - These appear in '''bold''' in the entry where they are discussed. This is used instead of hyperlinking to avoid circular references. * '''Names of DIRECTORIES''' - These written in ALL CAPS followed by /. * '''Names of files''' - These may appear in ALL CAPS, mixed case, or all lower case, depending on how the filename appears in the software. * '''<XXXX>''' - This indicates that all or part of filename or directory is required. The actual characters depend on your input or are automatically filled in by the program. * '''User keyboard inputs''' - These are shown in 'single' quotes. You should type what is in the 'single' quotes and then hit the Enter key. (!) 'Enter' means just hit the Enter key as the input. {X} '''''CRITICAL MESSAGES APPEAR LIKE THIS! You should pay particular attention to these to avoid data loss or other errors.''''' /!\ Warnings like this tell you actions you '''must''' take or information you ''should'' consider before you continue. (!) Information notes like this provide you with details and explanation that can help you understand the topic presented. |
Spacecraft telemetry, science instrument data, and tracking information are received by the SPOC. The Ingest portion of the SPOC system ingests the raw science and engineering telemetry for all instruments via the Front End Data System (FEDS) interface. The Digest portion of the SPOC server then composes complete telemetry products, reassembles data packets into complete buffers, generates L0 and L1 engineering data products for all science instruments, processes L0 un-calibrated science data products into L2 products ready for analysis, and creates FDS OpNav deliverables. The science team develops science data products for site selection as well as long-term science, and places those in the SPOC repository. All data products are available on the SPOC data repository for storage, retrieval, and delivery to the PDS. |
Introduction
The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) mission will return the first pristine samples of carbonaceous material from the surface of a primitive asteroid. OSIRIS-REx’s target asteroid (101955) Bennu is the most exciting, accessible, volatile, and organic-rich remnant from the early solar system, as well as one of the most potentially hazardous asteroids known.
After launching in September 2016, OSIRIS-REx begins a two-year cruise to Bennu that includes an Earth flyby in September of 2017. OSIRIS-REx detects Bennu 60 days in advance of rendezvous and surveys its environment for natural satellites and other hazards. OSIRIS-REx then spends the next 7 months characterizing the surface and orbital environment of Bennu. Four candidate sample sites are characterized with OSIRIS-REx’s instrument suite and the Touch-And-Go (TAG) maneuver sequence is practiced. In October 2019, OSIRIS-REx executes the TAG maneuver and collects both bulk and surface samples. After a period of quiescent drifting away from Bennu, in March of 2021, OSIRIS-REx begins its return journey to the Earth. Following a 2.5 year return cruise, the Sample Return Capsule (SRC) is released, re-entering Earth’s atmosphere and landing at the Utah Test & Training Range in September of 2023.
SPOC Overview
The Science Processing and Operations Center (SPOC) is the centralized location for all OSIRIS-REx science data processing during the operational phases of the mission.
Spacecraft telemetry, science instrument data, and tracking information are received by the SPOC. The Ingest portion of the SPOC system ingests the raw science and engineering telemetry for all instruments via the Front End Data System (FEDS) interface. The Digest portion of the SPOC server then composes complete telemetry products, reassembles data packets into complete buffers, generates L0 and L1 engineering data products for all science instruments, processes L0 un-calibrated science data products into L2 products ready for analysis, and creates FDS OpNav deliverables. The science team develops science data products for site selection as well as long-term science, and places those in the SPOC repository. All data products are available on the SPOC data repository for storage, retrieval, and delivery to the PDS.