164589 La Sagra

164589 La Sagra, provisional designation 2007 PC11, is an asteroid of the Euterpe family from the inner regions of the asteroid belt, approximately 1.2 kilometers (0.75 miles) in diameter. It was discovered on 11 August 2007, by astronomers of the Astronomical Observatory of Mallorca at its robotic La Sagra Observatory in Grenada, Spain. It was named after Mount La Sagra and the discovering La Sagra Observatory.[1]

164589 La Sagra
Discovery [1]
Discovered byOAM
Discovery siteLa Sagra Obs.
Discovery date11 August 2007
Designations
(164589) La Sagra
Named after
Sierra de La Sagra [1]
La Sagra Observatory
(mountain and observatory)
2007 PC11 · 2000 WD196
2003 OS32 · 2006 FH21
main-belt [1][2] · (inner)
Euterpe [3]
Orbital characteristics [2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc25.59 yr (9,347 d)
Aphelion2.9805 AU
Perihelion1.9053 AU
2.4429 AU
Eccentricity0.2201
3.82 yr (1,395 d)
41.049°
0° 15m 29.16s / day
Inclination1.3394°
128.30°
175.08°
Physical characteristics
Mean diameter
1.2 km (est. at 0.26)[4]
S (likely)[3][5]
16.6[1][2]

    Orbit and classification

    La Sagra is a member of the Euterpe family (410),[3] a small family of stony asteroids named after its principal body, 27 Euterpe.[5] It orbits the Sun in the inner asteroid belt at a distance of 1.9–3.0 AU once every 3 years and 10 months (1,395 days; semi-major axis of 2.44 AU). Its orbit has an eccentricity of 0.22 and an inclination of 1° with respect to the ecliptic.[2] The body's observation arc begins with a precovery taken by Spacewatch in October 1992, nearly 15 years prior to its official discovery observation at La Sagra Observatory.[1]

    Naming

    This minor planet takes its name from the mountain La Sagra ("Sierra de La Sagra"; 2,382 meters above sea level), the highest mountain of the Prebetic mountain range, on whose north hillside the La Sagra Observatory is located. This asteroid was the observatory's first numbered discovery. The official naming citation was published by the Minor Planet Center on 21 March 2008 (M.P.C. 62357).[6]

    Physical characteristics

    Since Euterpe asteroids are of silicaceous rather than carbonaceous composition, with a relatively high albedo around 0.26 (also see list of families),[5] La Sagra measures approximately 1.2 kilometer in diameter,[4] based on an absolute magnitude of 16.6.[2] As of 2018, no rotational lightcurve of La Sagra has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.[2][7]

    References
    1. "164589 La Sagra (2007 PC11)". Minor Planet Center. Retrieved 3 December 2018.
    2. "JPL Small-Body Database Browser: 164589 La Sagra (2007 PC11)" (2018-05-24 last obs.). Jet Propulsion Laboratory. Retrieved 3 December 2018.
    3. "Asteroid 164589 La Sagra". Small Bodies Data Ferret. Retrieved 3 December 2018.
    4. "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 3 December 2018.
    5. Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). Identification and Dynamical Properties of Asteroid Families. Asteroids IV. pp. 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131.
    6. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 3 December 2018.
    7. "LCDB Data for (164589) La Sagra". Asteroid Lightcurve Database (LCDB). Retrieved 3 December 2018.

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