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Updated: Dec 20, 2025
06:48
Surface Mapping of Earth-like Exoplanets using Single Point Light Curves
Published on: May 10, 2020
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LIGHTCURVE PHOTOMETRY OPPORTUNITIES: 2013 JULY-SEPTEMBER
Brian D Warner1, Alan W Harris2, Petr Pravec3
1Palmer Divide Observatory/MoreData!, 17995 Bakers Farm Rd., Colorado Springs, CO 80908 USA.
The Minor Planet Bulletin
|May 28, 2020
Summary
This study provides asteroid photometry opportunities for objects needing lightcurve data to improve shape and spin axis models. These observations will also aid radar studies by refining rotation periods and pole solutions.
Area of Science:
- Asteroid Science
- Observational Astronomy
- Photometry
Background:
- Asteroid shape and spin axis modeling relies on accurate lightcurve data.
- Many asteroids lack well-defined lightcurve parameters, hindering detailed physical characterization.
- Radar observations provide valuable rotation and shape information but can have ambiguities.
Purpose of the Study:
- To identify and list asteroid targets with favorable apparitions for photometry.
- To gather new lightcurve data for asteroids with poorly defined parameters.
- To supplement upcoming radar observations with complementary photometric data.
Main Methods:
- Compiling lists of asteroids based on orbital parameters and observational suitability.
- Identifying objects with existing sparse or absent lightcurve data.
- Cross-referencing with planned radar observation campaigns.
Main Results:
- Provided a curated list of asteroid photometry opportunities.
- Highlighted asteroids that will be targets of radar observations.
- Emphasized the synergistic value of combining photometry and radar data.
Conclusions:
- New photometric data will significantly improve asteroid shape and spin axis models.
- Lightcurve data can resolve ambiguities and enhance the accuracy of radar-derived rotation periods and pole solutions.
- This work facilitates more comprehensive physical characterization of asteroids.
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