On the control of a permanent tethered observatory at Jupiter
Bibliographic record
Abstract
Outer planet exploration has always been handicapped by a scarcity of power. The conversion of solar energy to electricity becomes rapidly ineffective further from the Sun. Solar intensity at Jupiter, the nearest of the outer planets, is only 4% of its value at Earth. For a mission to Jupiter any extra power will allow the use of in- struments which normally cannot be deployed in space because they need too much energy. Electrodynamic tethers could be used in some missions as an alternative to produce required levels of onboard energy. This paper describes the essential dy- namical issues arising in the placement of a permanent observatory located at one of the Jupiter inner moonlets (Adrastea, Metis, Amalthea, Thebe) and sustained by an electrodynamic tether working in the generator regime. The electrodynamic tether will be deorbiting the moonlet by using its gravitational attraction; in doing so it converts the mechanical energy of the moonlet into electrical energy that can be used onboard. The aim of the work is to analyze the dynamical problem posed by such a observatory ?orbital and attitude dynamics? and also essential aspects related with its control. A feedback control law is deduced; it allows to control and stabilize the system when is operated at unstable equilibrium positions.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".