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Updated: Dec 20, 2025

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ARL Spectral Fitting as an Application to Augment Spectral Data via Franck-Condon Lineshape Analysis and Color Analysis
Published on: August 19, 2021
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SAVE THE LIGHTCURVES! AN UPDATE ON THE ALCDEF PROJECT
1Center for Solar System Studies / MoreData! 446 Sycamore Ave., Eaton, CO 80615 USA.
Summary
The Asteroid Lightcurve Data Exchange Format (ALCDEF) project has gathered millions of asteroid observations. A new simple interface aims to increase data submissions for asteroid research.
Area of Science:
- Planetary Science
- Astronomy
- Astrophysics
Background:
- The Asteroid Lightcurve Data Exchange Format (ALCDEF) project has been ongoing for over five years.
- The ALCDEF database, hosted by the Minor Planet Center, contains nearly 2.5 million time-series data points for over 11,400 asteroids.
Purpose of the Study:
- To summarize the progress and impact of the ALCDEF project.
- To encourage further data submission through the introduction of a simplified interface (S-ALCDEF).
- To facilitate and expedite research in asteroid shape and spin axis modeling.
Main Methods:
- Data aggregation and management through the ALCDEF database.
- Development and deployment of the Simple-ALCDEF (S-ALCDEF) web interface.
- Utilizing submitted time-series observations for asteroid characterization.
Main Results:
- Accumulation of a substantial dataset: nearly 2.5 million data points for over 11,400 asteroids.
- Facilitation of the creation of hundreds of asteroid shape and spin axis models.
- Introduction of S-ALCDEF to streamline data submission.
Conclusions:
- The ALCDEF project has successfully built a valuable resource for asteroid research.
- The S-ALCDEF interface is expected to boost data submission rates.
- Continued data contributions will further advance the understanding of asteroid physical properties.
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