2052 Tamriko Explained

Minorplanet:yes
2052 Tamriko
Background:
  1. D6D6D6
Discovery Ref: 
Discovered:24 October 1976
Mpc Name:(2052) Tamriko
Alt Names:1976 UN1928 TD
1939 YA1942 JE
1949 UV
1952 FL
1954 TS
A902 UB
Named After:Tamara West
Mp Category:main-belt
Eos 
Orbit Ref: 
Epoch:4 September 2017 (JD 2458000.5)
Uncertainty:0
Observation Arc:114.10 yr (41,676 days)
Perihelion:2.7529 AU
Semimajor:3.0078 AU
Eccentricity:0.0848
Period:5.22 yr (1,905 days)
Mean Motion: / day
Inclination:9.5008°
Asc Node:213.86°
Arg Peri:204.82°
Dimensions: km
km
km
km
km
Rotation: h
h
h
h
Albedo:



Spectral Type:Tholen = S S 
B–V = 0.825
U–B = 0.433
Abs Magnitude:10.4010.48

2052 Tamriko, provisional designation, is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 24 October 1976, by Richard Martin West at ESO's La Silla Observatory in northern Chile. The asteroid was named after the discoverer's wife Tamara West.

Orbit and classification

Tamriko is a member of the Eos family, the largest asteroid family in the outer main belt consisting of nearly 10,000 asteroids. It orbits the Sun in the outer main-belt at a distance of 2.8–3.3 AU once every 5 years and 3 months (1,905 days). Its orbit has an eccentricity of 0.08 and an inclination of 10° with respect to the ecliptic.

The asteroid was first identified as at Heidelberg Observatory in October 1902. Its observation arc begins 24 years prior to the official discovery observation, with its identification at Goethe Link Observatory in March 1952.

Physical characteristics

In the Tholen classification, Tamriko is a stony S-type asteroid.

Rotation period

Between 2001 and 2011, four rotational lightcurve of Tamriko were obtained from photometric observations by Edwin Sheridan, Pierre Antonini, Laurent Bernasconi and Brian Warner. Lightcurve analysis gave a rotation period between 7.462 and 7.471 hours with a brightness variation between 0.11 and 0.15 magnitude .

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Tamriko measures between 26.799 and 30.45 kilometers in diameter and its surface has an albedo between 0.1225 and 0.158.

The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, a standard albedo of 0.1225 and a diameter of 30.45 kilometers with an absolute magnitude of 10.48.

Naming

This minor planet was named for Tamara West, wife of the discoverer Richard Martin West. The official was published by the Minor Planet Center on 1 July 1979 .

External links