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Record W2324831403 · doi:10.2514/6.2015-3792

Orion EFT-1 Propulsion Test Results

2015· article· en· W2324831403 on OpenAlex
Scott D. Norris, Amber Gell

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venue51st AIAA/SAE/ASEE Joint Propulsion Conference · 2015
Typearticle
Languageen
FieldEngineering
TopicSpacecraft Design and Technology
Canadian institutionsLockheed Martin (Canada)
Fundersnot available
KeywordsPropulsionTest (biology)Aerospace engineeringAeronauticsComputer scienceEngineeringGeology

Abstract

fetched live from OpenAlex

The Orion program, originally known as the Crew Exploration Vehicle (CEV) project, was awarded to Lockheed Martin in September 2006 for the Design, Development, Test and Evaluation (DDT&E) and production phases. The 2011 President’s Budget Request, released in February 2010, called for the cancellation of the Constellation Program, including Orion, however, Orion was ultimately reformed as the Multi-Purpose Crew Vehicle (MPCV) program and, although the fundamental design requirements of the vehicle have remained stable since the reformulation, the vehicle’s mission has significantly changed from ISS crew servicing to focusing primarily on beyond earth orbit (BEO) exploration. Since the reestablishment of Orion as the BEO MPCV the design requirements have stabilized and the program has been focusing more on test and evaluation. Following the reformulation of Orion MPCV in 2011, Lockheed Martin’s contract was modified to focus on an efficient flight test strategy starting with a very important risk reduction flight called Exploration Flight Test 1 (EFT-1) to validate the subsystems on Orion required for a high speed re-entry similar to a BEO return. This mission will be followed by an uncrewed Exploration Mission 1 (EM-1) in 2018, an Ascent Abort test (AA-2) in 2019, and then a crewed Exploration Mission 2 (EM-2) in 2021. The EFT-1 mission was launched and successfully completed on December 5 th 2014. This paper will present a general overview of the Orion propulsion system and provide a more detailed report on the test results of the propulsion system flown on the EFT-1 mission. The purpose of the paper is to inform the aerospace community of the progress the Orion Program is making and in particular the status of the in-space propulsion system and its performance on the successful EFT-1 mission. The technical foundation for the topics to be discussed include a summary overview of the Orion deep space mission requirements and the baseline design concept. A status of ground testing and preliminary EFT-1 results will be summarized and include key figures, tables, and references as appropriate.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.235
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0000.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.055
GPT teacher head0.239
Teacher spread0.183 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it