Dual-purpose SDA-compliant optical ground station and laser ranging system concept for satellite applications
Bibliographic record
Abstract
A system for combining laser ranging and high-speed optical communication reception into a single optical system for low-Earth orbit satellite applications at 1550 nm is proposed. This system would enable both optical data reception and ranging to be performed at one location, provided a satellite has both an SDA-compliant optical terminal and infrared retroreflectors on-board. An analysis of the expected returns is provided for both ideal and poor atmospheric conditions. The ranging system is projected to have a single-shot precision of 2.7 cm with sub-mm normal point accuracy pending further analysis. A system concept is presented, utilizing a single telescope and the same adaptive optics. Other methods of orbit determination using optical techniques are also identified. A proof-of-concept system will be considered for payload testing on the University of Alberta AlbertaSat’s Ex-Alta 4 cubesat, scheduled for launch in 2027-28.
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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 | 0.000 |
| 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".