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Record W4206434530 · doi:10.26685/urncst.327

Evaluating the Effectiveness and Efficiency of a Laser Guided and Electrodynamic Approach to Performing Space Debris Removal

2022· article· en· W4206434530 on OpenAlexafffund
Manish Angrish, Matthew Badal-Badalian, Edward Shen

Bibliographic record

VenueUndergraduate Research in Natural and Clinical Science and Technology (URNCST) Journal · 2022
Typearticle
Languageen
FieldEngineering
TopicSpace Satellite Systems and Control
Canadian institutionsMcMaster University
FundersMcMaster University
KeywordsSpace debrisDebrisSpacecraftAerospace engineeringSatelliteLaserRemote sensingAtmosphere (unit)Process (computing)Environmental scienceAstrobiologyComputer sciencePhysicsOpticsGeologyMeteorologyEngineering

Abstract

fetched live from OpenAlex

Introduction: Space debris is an alarming problem that researchers around the globe have been working to solve. These space particles consist of meteorites that exist in space as well as fragmentation originating from satellites and spacecraft. The effect of these debris can be devastating upon collision with devices such as satellites, telecommunicators, etc. The National Aeronautics and Space Administration database reported that approximately 200 million objects were found orbiting close to the Earth. Currently, different techniques are under investigation to eliminate space debris. Methods: Space debris varies in size, thus can only be fully removed if the various sizes are accounted for. We propose a model where efficiency and effectiveness can be optimized towards certain sizes of space debris. The laser ablation process involves concentrating multiple laser pulses on space debris to create plasma plumes which eject from the cavity created in the material at a substantial velocity, acting against the material’s original orbit and can be guided into Earth’s atmosphere where it will disintegrate or fall into the ocean. An electrodynamic net will also be used to attract and capture space debris. Once taken a hold of, this debris will be transported by the satellite towards the Earth's atmosphere. Here both the satellite and the debris will be disintegrated. Results: To solve this problem, this study proposes a dual-debris model which combines a laser-guided and electrodynamic approach. The first process involves short-wavelength laser pulses that focus on debris greater than 10 cm in diameter, generating plasma plume ejections that decrease orbital velocity. The electrodynamic approach will attract and dispose materials less than 10 cm in diameter with an electrically charged net dispatched by a satellite, which is then guided towards the Earth. Discussion: Based on the results of the studies analyzed, laser ablation is an effective method of removing large space debris while the electrodynamic net serves as a cost-efficient method of eliminating small debris. Both methods allow targeted debris to approach and disintegrate in the Earth's atmosphere or fall into the ocean. Results from previous studies were largely based on simulations, and further testing should be done.

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 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)0.017
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.873
Threshold uncertainty score0.770

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0170.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.002
Science and technology studies0.0010.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.002
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.044
GPT teacher head0.390
Teacher spread0.345 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2022
Admission routes2
Has abstractyes

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