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19204 JOSHUATREE - NOT SO FAST
Robert D Stephens1, Brian D Warner2
1Center for Solar System Studies (CS3) / MoreData!, 11355 Mount Johnson Ct., Rancho Cucamonga, CA 91737 USA.
The Minor Planet Bulletin
|May 27, 2020
Summary
New observations suggest asteroid 19204 Joshuatree may be a wide binary system. Analysis reveals distinct light curves for both potential components, indicating orbital dynamics.
Area of Science:
- Astronomy and Astrophysics
- Solar System Studies
Background:
- Asteroid 19204 Joshuatree was observed using CCD photometry.
- Previous observations from 2013 were reevaluated alongside new data from 2016.
Purpose of the Study:
- To determine if asteroid 19204 Joshuatree is a binary system.
- To classify 19204 Joshuatree as a potential candidate for very wide binaries.
Main Methods:
- CCD photometric observations were conducted in February-March 2016.
- Reevaluation of existing photometric data from June 2013.
Main Results:
- Photometric data indicates 19204 Joshuatree is a possible binary.
- The primary light curve exhibits a period of 480 ± 5 hours and an amplitude of 0.25 ± 0.02 magnitudes.
- The secondary light curve shows a period of 21.25 ± 0.05 hours.
Conclusions:
- Asteroid 19204 Joshuatree is a strong candidate for a very wide binary system.
- The distinct light curve periods suggest the presence of two orbiting bodies.
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