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3406 Omsk

Main-belt asteroid

Field	Value
minorplanet	yes
name	3406 Omsk
background	#D6D6D6
discovery_ref
discoverer	B. Burnasheva
discovery_site	Crimean Astrophysical Obs.
discovered	21 February 1969
mpc_name	(3406) Omsk
alt_names	1969 DA

named_after	Omsk (Russian city)
mp_category	main-belt(middle)
background
orbit_ref
epoch	23 March 2018 (JD 2458200.5)
uncertainty	0
observation_arc	48.69 yr (17,783 d)
aphelion	3.1645 AU
perihelion	2.4279 AU
semimajor	2.7962 AU
eccentricity	0.1317
period	4.68 yr (1,708 d)
mean_anomaly	124.44°
mean_motion	/ day
inclination	8.3583°
asc_node	269.84°
arg_peri	310.19°
mean_diameter
14.42 km (derived)

rotation
albedo
(derived)

spectral_type	SMASS X
MC
abs_magnitude	11.30
11.60
11.8

background 14.42 km (derived)

(derived)

MC 11.60 11.8

3406 Omsk, provisional designation , is a background asteroid from the central regions of the asteroid belt, approximately 15 km in diameter. It was discovered on 21 February 1969, by Soviet astronomer Bella Burnasheva at the Crimean Astrophysical Observatory on the Crimean peninsula in Nauchnij. The possibly metallic M/X-type asteroid has a rotation period of 7.3 hours. It was named for the Russian city of Omsk.

Orbit and classification

Omsk is a non-family asteroid from the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 2.4–3.2 AU once every 4 years and 8 months (1,708 days; semi-major axis of 2.8 AU). Its orbit has an eccentricity of 0.13 and an inclination of 8° with respect to the ecliptic.

The asteroid was first observed as at McDonald Observatory in May 1951. The body's observation arc begins with its official discovery observation at Nauchnij in February 1969.

Physical characteristics

In the SMASS classification, Omsk is an X-type asteroid. It has also been characterized as a metallic M-type and carbonaceous C-type by the Wide-field Infrared Survey Explorer (WISE) and Pan-STARRS, respectively.

Rotation period

In May 2007, a rotational lightcurve of Omsk was obtained from photometric observations at the Mount Tarana Observatory in Bathurst, Australia. Lightcurve analysis gave a well-defined rotation period of 7.275 hours with a brightness amplitude of 0.28 magnitude ().

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, Omsk measures between 13.43 and 16.59 kilometers in diameter and its surface has an albedo between 0.1569 and 0.2476.

The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1619 and a diameter of 14.42 kilometers based on an absolute magnitude of 11.8.

Naming

This minor planet was named after the Siberian city of Omsk, the discoverer's birthplace and the administrative center of Omsk Oblast, Russia. The official naming citation was published by the Minor Planet Center on 18 February 1992 (M.P.C. 19693).

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.

background-asteroids discoveries-by-bella-a.-burnasheva named-minor-planets x-type-asteroids-(smass) astronomical-objects-discovered-in-1969

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