From Surf Wiki (app.surf) — the open knowledge base

3169 Ostro

Hungaria family asteroid

Field	Value
minorplanet	yes
name	3169 Ostro
background	#D6D6D6
image	Asteroid (3169) Ostro.gif
caption
discovery_ref
discovered	4 June 1981
discoverer	E. Bowell
discovery_site	Anderson Mesa Stn.
mpc_name	(3169) Ostro
alt_names	1981 LA
named_after	Steven J. Ostro
(planetary scientist)
mp_category	main-belt(inner)Hungaria
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	63.43 yr (23,166 days)
aphelion	2.0184 AU
perihelion	1.7652 AU
semimajor	1.8918 AU
eccentricity	0.0669
period	2.60 yr (950 days)
mean_anomaly	120.41°
mean_motion	/ day
inclination	24.906°
asc_node	96.376°
arg_peri	32.622°
dimensions
km (derived)
rotation
albedo	(derived)

spectral_type	TS (Tholen)
Xe (SMASS)
B–V = 0.771
U–B = 0.306
abs_magnitude	12.73

(planetary scientist) km (derived)

Xe (SMASS) B–V = 0.771 U–B = 0.306

3169 Ostro, provisional designation , is a Hungaria family asteroid from the innermost regions of the asteroid belt, approximately 5 kilometers in diameter.

The asteroid was discovered on 4 June 1981, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Flagstaff, Arizona, and named after planetary scientist Steven J. Ostro at JPL.

Orbit and classification

Ostro is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System. It orbits the Sun at a distance of 1.8–2.0 AU once every 2 years and 7 months (950 days). Its orbit has an eccentricity of 0.07 and an inclination of 25° with respect to the ecliptic.

Physical characteristics

In the Tholen and SMASS taxonomy, Ostro is classified as a TS-type and Xe-type asteroid, respectively. It has also been characterized as an E-type asteroid.

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Ostro measures 4.662 kilometers in diameter and its surface has an outstandingly high albedo of 0.960. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.5152 and a diameter of 5.27 kilometers with an absolute magnitude of 12.73.

In May 2012, a rotational lightcurve of Ostro was obtained from photometric observations by American astronomer Brian Warner. Lightcurve analysis gave a well-defined rotation period of 6.503 hours with a brightness amplitude of 0.79 magnitude ().

Naming

This minor planet was named after American planetary scientist Steven J. Ostro at the Jet Propulsion Laboratory of the California Institute of Technology. The approved naming citation was published by the Minor Planet Center on 14 April 1987 (M.P.C. 11749).

References

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

hungaria-asteroids discoveries-by-edward-l.-g.-bowell named-minor-planets binary-asteroids ts-type-asteroids-(tholen) xe-type-asteroids-(smass) astronomical-objects-discovered-in-1981

Want to explore this topic further?

Ask Mako anything about 3169 Ostro — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report