Bibliographic record
Abstract
This paper provides a review of major Electric Propulsion activities within U.S. Industry over the past year. Boeing, Lockheed Martin, Loral and Orbital Sciences continue to offer and sell geosynchronous telecommunication spacecraft which either baseline EP or offer EP as an upgrade option. The Boeing EDD group has been sold to L3 Communications, but continues to supply XIPS-25 systems. NGST won NASA’s premier Prometheus program competition for the Jupiter Icy Moon Orbiter, however this program and in particular its near term mission set are currently under re-evaluation. High power (4-10 kW) Hall thruster and gridded Ion Engine development programs at Aerojet, Busek, and L3 have seen significant progress. Lower power engine programs involving various types of EP at AACS, Aerojet, and Busek are discussed. Component develop is reported at ATK-PSI, Moog, Stanford Mu, and Vacco. EP activities at EDA is also summarized.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.006 | 0.013 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.015 | 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".