Bibliographic record
Abstract
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.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.010 | 0.007 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".