221628 Hyatt

Last updated

221628 Hyatt
Discovery  [1]
Discovered by A. R. Gibbs
Discovery site Catalina Sky Srvy.
Discovery date26 December 2006
Designations
(221628) Hyatt
Named after
 Hyatt M. Gibbs   [1]
(American physicist)
2006 YE13 ·2001 ES12
2005 WG1
main-belt   [1] [2]  ·(outer)
background   [3] [4]
Orbital characteristics   [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc 17.16 yr (6,266 d)
Aphelion 3.9134 AU
Perihelion 2.3515 AU
3.1324 AU
Eccentricity 0.2493
5.54 yr (2,025 d)
356.66°
0° 10m 40.08s / day
Inclination 32.475°
357.84°
176.49°
TJupiter 2.9290
Physical characteristics
3.8  km (est. at 0.22) [5]
7.4 km(est. at 0.057) [5]
9 km(est. at 0.039) [5]
14.4 [1] [2]

    221628 Hyatt, provisional designation 2006 YE13, is a background asteroid on an inclined, comet-like orbit in the outer regions of the asteroid belt, approximately 7 kilometers (4 miles) in diameter. It was discovered on 26 December 2006, by Alex Gibbs, an American software engineer with the Catalina Sky Survey, who named it after his father and renowned physicist Hyatt M. Gibbs. [1]

    Contents

    Orbit and classification

    Hyatt is a non-family asteroid from the main belt's background population. [4] It orbits the Sun in the outer asteroid belt at a distance of 2.4–3.9  AU once every 5 years and 6 months (2,025 days; semi-major axis of 3.13 AU). Its orbit has an eccentricity of 0.25 and a notable inclination of 32° with respect to the ecliptic. [2] While still considered a main-belt asteroid, [1] [2] Hyatt blurs the distinction between asteroids and comets due to its relatively high inclination and a Tisserand's parameter of 2.929, which already enters the territory of Jupiter-family comets.

    The body's observation arc begins with a precovery taken by LONEOS in December 2000, or six years prior to its official discovery observation at Catalina. [1]

    Physical characteristics

    Hyatt's spectral type is unknown. It has an absolute magnitude of 14.4. [2]

    Diameter and albedo

    Hyatt has not been observed by any of the space-based surveys such as the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission. Based on a generic magnitude-to-diameter conversion, it measures approximately 7.4 kilometers in diameter for an absolute magnitude of 14.4, and an assumed albedo of 0.057. [5] This is a typical value for carbonaceous C-type asteroids, which are the dominant type in the outer asteroid belt.

    Rotation period

    As of 2018, no rotational lightcurve of Hyatt has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown. [2]

    Naming

    This minor planet was named by the discoverer after his father, Hyatt M. Gibbs (1938–2012), who was a physicist and professor at the University of Arizona College of Optical Sciences. Gibbs is known for his research on quantum optics and received several awards. [1] The official naming citation was published by the Minor Planet Center on 3 July 2012 ( M.P.C. 79912), [6] just two months before he died on 3 September 2012.

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    References

    1. 1 2 3 4 5 6 7 8 "221628 Hyatt (2006 YE13)". Minor Planet Center. Retrieved 14 April 2018.
    2. 1 2 3 4 5 6 7 "JPL Small-Body Database Browser: 221628 Hyatt (2006 YE13)" (2018-02-26 last obs.). Jet Propulsion Laboratory . Retrieved 14 April 2018.
    3. ↑ "Small Bodies Data Ferret". Nesvorny HCM Asteroid Families V3.0. Archived from the original on 2 August 2017. Retrieved 14 April 2018.
    4. 1 2 "Asteroid 221628 Hyatt – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 30 October 2019.
    5. 1 2 3 4 "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 14 April 2018.
    6. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 14 April 2018.
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