3074 Popov

3074 Popov, provisional designation 1979 YE9, is a carbonaceous Nysian asteroid from the inner regions of the asteroid belt, approximately 10 kilometers (6 miles) in diameter. It was discovered on 24 December 1979, by Soviet–Russian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula. The B-type asteroid has an unknown rotation period. It was named after Russian physicist Alexander Stepanovich Popov, an early radio pioneer in Russia.[1][2]

3074 Popov
Discovery [1]
Discovered byL. Zhuravleva
Discovery siteCrimean Astrophysical Obs.
Discovery date24 December 1979
Designations
(3074) Popov
Named after
Alexander Stepanovich Popov [1]
(Russian inventor of radio)
1979 YE9 · 1964 TZ
1975 XK1 · 1978 RF14
main-belt [1][2] · (inner) · Nysa [3]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc52.74 yr (19,262 d)
Aphelion2.5981 AU
Perihelion2.0800 AU
2.3391 AU
Eccentricity0.1107
3.58 yr (1,307 d)
228.45°
0° 16m 31.8s / day
Inclination2.4157°
348.70°
151.19°
Physical characteristics
Mean diameter
9.875±0.064 km[4]
0.070±0.008[4]
SMASS = B [2]
13.7[2]

    Orbit and classification

    Popov is a member of the carbonaceous subgroup of the Nysa family (FIN: 405), a group of asteroids in the inner main-belt not far from the Kirkwood gap at 2.5 AU, a depleted zone where a 3:1 orbital resonance with the orbit of Jupiter exists. The Nysian group is named after its largest member 44 Nysa.[5][3]

    It orbits the Sun in the inner asteroid belt at a distance of 2.1–2.6 AU once every 3 years and 7 months (1,307 days; semi-major axis of 2.34 AU). Its orbit has an eccentricity of 0.11 and an inclination of 2° with respect to the ecliptic.[2]

    The asteroid was first observed as 1964 TZ at the Purple Mountain Observatory in October 1964. The body's observation arc begins with its observations as 1975 XK1 at Crimea–Nauchnij in December 1975, or four years prior to its official discovery observation.[1]

    Physical characteristics

    In the SMASS classification, Popov is a B-type asteroid, which have a "brighter" surface than the common carbonaceous C-types.[2]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Popov measures 9.875 kilometers in diameter and its surface has an albedo of 0.070.[4]

    Rotation period

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

    Naming

    This minor planet was named after Russian physicist Alexander Stepanovich Popov (1859–1906), who is considered to be the inventor of radio in his homeland and in eastern European countries.[1] The official naming citation was published by the Minor Planet Center on 31 May 1988 (M.P.C. 13174).[6] The lunar crater Popov was also named in his honor.

    References
    1. "3074 Popov (1979 YE9)". Minor Planet Center. Retrieved 4 April 2018.
    2. "JPL Small-Body Database Browser: 3074 Popov (1979 YE9)" (2017-07-04 last obs.). Jet Propulsion Laboratory. Retrieved 4 April 2018.
    3. "Asteroid 3074 Popov – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
    4. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68.
    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 4 April 2018.

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