5641 McCleese

Last updated

5641 McCleese
Discovery  [1]
Discovered by E. F. Helin
Discovery site Palomar Obs.
Discovery date27 February 1990
Designations
(5641) McCleese
Named after
Daniel McCleese
(JPL scientist) [2]
1990 DJ ·1973 GA
Mars-crosser   [1]  · Hungaria   [3] [4]
Orbital characteristics   [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 44.16 yr (16,131 days)
Aphelion 2.0497 AU
Perihelion 1.5894 AU
1.8195 AU
Eccentricity 0.1265
2.45 yr (896 days)
25.017°
0° 24m 5.76s / day
Inclination 22.201°
151.32°
57.026°
Earth  MOID 0.6553 AU
Physical characteristics
Dimensions3.67 km (derived) [4]
4.00±0.68 km [5]
5.68±0.5 km (IRAS:2) [6]
7.268±0.001 h [7]
28.8±0.6 h [8]
28.8 h [8]
418±10 h [9]
0.3 (assumed) [4]
0.34±0.09 [5]
0.4552±0.088(IRAS:2) [6]
SMASS = A   [1]  · A   [4]
12.70 [6]  ·14.00 [5]  ·14.1 [1] [4] [10]

    5641 McCleese, provisional designation 1990 DJ, is a rare-type Hungaria asteroid and slow rotator, classified as Mars-crosser from the innermost regions of the asteroid belt, approximately 4 kilometers in diameter.

    Contents

    It was discovered on 27 February 1990, by American astronomer Eleanor Helin at Palomar Observatory in California, and later named for JPL-scientist Daniel McCleese. [2] [3]

    Classification and orbit

    McCleese is classified as a bright and rare A-type asteroid in the SMASS taxonomy. [11] It is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System. [3] With a perihelion of 1.589  AU, McCleese also crosses the orbit of Mars.

    The asteroid orbits the Sun in the innermost main-belt at a distance of 1.6–2.0 AU once every 2 years and 5 months (896 days). Its orbit has an eccentricity of 0.13 and an inclination of 22° with respect to the ecliptic. [1] In 1973, it was first identified as 1973 GA at Lick Observatory, extending the body's observation arc by 17 years prior to its official discovery observation at Palomar. [3]

    Lightcurve

    Photometric observations of McCleese by Brian Warner and René Roy in 2005 and 2007, gave three rotational lightcurves that had a rotation period between 7.2 and 28.8 hours with a brightness variation of 0.06 to 0.50 magnitude ( U=2/2/1 ). [7] [8] In June 2010, McCleese was again observed by Brian Warner at his Palmer Divide Observatory in Colorado, United States. By combining his data points with the previously obtained photometric data, he was able to derive a period of 418±10 hours with an amplitude of 1.30 magnitude ( U=2 ). [9] With a period of 418 hours, the body is one of the Top 100 slow rotators known to exist.

    Diameter estimates

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, McCleese measures 5.68 and 4.00 kilometers in diameter, and its surface has an albedo of 0.455 and 0.34, respectively. [5] [6] In agreement with WISE, the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.3 and derives a diameter of 3.67 kilometers using an absolute magnitude of 14.1. [4]

    Naming

    This minor planet is named after American JPL scientist Daniel J. McCleese, who is a physicist and manager at JPL's Science Division. He also played an important role for the Near-Earth Asteroid Tracking program (NEAT). [2] The approved naming citation was published by the Minor Planet Center on 4 April 1996 ( M.P.C. 26930). [12]

    Related Research Articles

    1509 Esclangona, provisional designation 1938 YG, is a rare-type Hungaria asteroid and binary system from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It is named after French astronomer Ernest Esclangon.

    1019 Strackea, provisional designation 1924 QN, is a stony Hungaria asteroid of the inner asteroid belt, approximately 8 kilometers in diameter. It was discovered on 3 March 1924, by astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany. It is named for German astronomer Gustav Stracke.

    3309 Brorfelde, provisional designation 1982 BH, is a nearly spheroidal, binary Hungaria asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 28 January 1982, by Danish astronomers Kaare Jensen and Karl Augustesen at the Brorfelde Observatory near Holbæk, Denmark. It was named for the discovering observatory and the village where it is located.

    4031 Mueller, provisional designation 1985 CL, is a Hungaria asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 12 February 1985, by American astronomer Carolyn Shoemaker at Palomar Observatory, California, and named after astronomer Jean Mueller.

    5806 Archieroy, provisional designation 1986 AG1, is a stony Hungaria asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 11 January 1986, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona. It is named after Scottish astrophysicist Archie Roy.

    6296 Cleveland, provisional designation 1988 NC, is a Hungaria asteroid from the innermost regions of the asteroid belt, approximately 3.5 kilometers in diameter. It was discovered on 12 July 1988, by American astronomer Eleanor Helin at the Palomar Observatory in California. The presumed E-type asteroid has a long rotation period of 30.8 hours and possibly an elongated shape. It was named for the city of Cleveland in the U.S. state of Ohio.

    1453 Fennia, provisional designation 1938 ED1, is a stony Hungaria asteroid and synchronous binary system from the innermost regions of the asteroid belt, approximately 7 kilometers in diameter. Discovered by Yrjö Väisälä at the Turku Observatory in 1938, the asteroid was later named after the Nordic country of Finland. The system's minor-planet moon was discovered in 2007. It has a derived diameter of 1.95 kilometers and is orbiting its primary every 23.55 hours.

    3854 George, provisional designation: 1983 EA, is a stony Hungaria asteroid and Mars-crosser from the innermost regions of the asteroid belt, approximately 3.5 kilometers in diameter. It was discovered on 13 March 1983, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California. The unlikely synchronous binary system has a rotation period of 3.3 hours. It was named after the discoverer's father-in-law, George Shoemaker.

    7187 Isobe, provisional designation 1992 BW, is a likely binary Hungaria asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 30 January 1992, by American astronomer Eleanor Helin at Palomar Observatory in California, United States. It is named after Japanese astronomer Syuzo Isobe.

    4868 Knushevia, provisional designation 1989 UN2 is a bright Hungaria asteroid and suspected binary system from the innermost regions of the asteroid belt, approximately 2 kilometers in diameter. It was discovered on 27 October 1989, by American astronomer Eleanor Helin at the Palomar Observatory in California, United States. The asteroid was named for the Kyiv University in Ukraine.

    3873 Roddy, provisional designation 1984 WB, is a stony Hungarian asteroid, Mars-crosser and suspected binary system, from the innermost regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 21 November 1984, by American astronomer Carolyn Shoemaker at the Palomar Observatory in California, United States. It was named after American astrogeologist David Roddy.

    2074 Shoemaker, provisional designation 1974 UA, is a stony Hungaria asteroid, Mars-crosser and suspected synchronous binary system from the innermost regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 17 October 1974, by astronomer Eleanor Helin at the Palomar Observatory. She named it after American astronomer Eugene Shoemaker.

    2047 Smetana, provisional designation 1971 UA1, is a bright Hungaria asteroid and synchronous binary system from the innermost regions of the asteroid belt, approximately 3.5 kilometers in diameter. It was discovered on 26 October 1971, by Czech astronomer Luboš Kohoutek at Bergedorf Observatory in Hamburg, Germany. The asteroid was named after Czech composer Bedřich Smetana. Its sub-kilometer sized minor-planet moon was discovered in 2012.

    2035 Stearns, provisional designation 1973 SC, is a bright Hungaria asteroid and sizable Mars-crosser inside the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 21 September 1973, by American astronomer James Gibson at the Leoncito Astronomical Complex in Argentina. The transitional E-type asteroid has a long rotation period of 93 hours. It was named after American astronomer Carl Leo Stearns.

    1656 Suomi is a binary Hungaria asteroid and sizable Mars-crosser from the innermost regions of the asteroid belt. It was discovered on 11 March 1942, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland, who named it "Suomi", the native name of Finland. The stony asteroid has a short rotation period of 2.6 hours and measures approximately 7.9 kilometers in diameter. In June 2020, a companion was discovered by Brian Warner, Robert Stephens and Alan Harris. The satellite measures more than 1.98 kilometers in diameter, about 26% of the primary, which it orbits once every 57.9 hours at an average distance of 30 kilometers.

    4142 Dersu-Uzala, provisional designation 1981 KE, is a Hungaria asteroid, sizable Mars-crosser and potentially slow rotator from the innermost region of the asteroid belt, approximately 6 kilometers in diameter. It was discovered by Czech astronomer Zdeňka Vávrová at Kleť Observatory on 28 May 1981. The rare A-type asteroid has a rotation period of 140 hours. It was named after the Siberian trapper and hunter Dersu Uzala.

    <span class="mw-page-title-main">1600 Vyssotsky</span>

    1600 Vyssotsky, provisional designation 1947 UC, is a rare-type Hungaria asteroid and suspected interloper from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 22 October 1947, by American astronomer Carl Wirtanen at Lick Observatory in California, United States. It was named after astronomer Alexander Vyssotsky.

    (6382) 1988 EL, is a stony Hungaria asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 14 March 1988, by American astronomer Jeffrey Alu at the U.S. Palomar Observatory, California.

    8026 Johnmckay, provisional designation 1991 JA1, is a binary Hungaria asteroid and very slow rotator from the inner regions of the asteroid belt, approximately 2 kilometers in diameter. It was discovered on 8 May 1991, by American astronomer Eleanor Helin at the U.S. Palomar Observatory, California, and later named for NASA test pilot John B. McKay.

    20936 Nemrut Dagi, provisional designation: 4835 T-1, is a stony Hungaria asteroid and Mars-grazer from the innermost regions of the asteroid belt, approximately 3.5 kilometers in diameter. It was discovered on 13 May 1971, by Dutch astronomer couple Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Dutch–American astronomer Tom Gehrels at Palomar Observatory in California, United States. The asteroid has a rotation period of 3.28 hours, a likely spheroidal shape, and a high albedo typically seen among the enstatite-rich E-type asteroids. In 2012, it was named after the a dormant volcano Nemrut in Turkey.

    References

    1. 1 2 3 4 5 6 "JPL Small-Body Database Browser: 5641 McCleese (1990 DJ)" (2017-06-05 last obs.). Jet Propulsion Laboratory. Retrieved 4 July 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(5641) McCleese". Dictionary of Minor Planet Names – (5641) McCleese. Springer Berlin Heidelberg. p. 478. doi:10.1007/978-3-540-29925-7_5345. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 "5641 McCleese (1990 DJ)". Minor Planet Center. Retrieved 15 February 2017.
    4. 1 2 3 4 5 6 "LCDB Data for (5641) McCleese". Asteroid Lightcurve Database (LCDB). Retrieved 15 February 2017.
    5. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv: 1509.02522 . Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117 . Retrieved 15 February 2017.
    6. 1 2 3 4 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T . Retrieved 22 October 2019.
    7. 1 2 Warner, Brian D.; Pravec, Petr; Kusnirák, Peter; Galad, Adrian; Kornos, Leos; Pray, Donald P.; et al. (March 2006). "The enigmatic lightcurve for the Hungaria asteroid 5641 McCleese". The Minor Planet Bulletin. 33 (1): 21–23. Bibcode:2006MPBu...33...21W. ISSN   1052-8091 . Retrieved 15 February 2017.
    8. 1 2 3 Behrend, Raoul. "Asteroids and comets rotation curves – (5641) McCleese". Geneva Observatory . Retrieved 15 February 2017.
    9. 1 2 Warner, Brian D. (October 2010). "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2010 March - June". The Minor Planet Bulletin. 37 (4): 161–165. Bibcode:2010MPBu...37..161W. ISSN   1052-8091 . Retrieved 15 February 2017.
    10. ↑ Faure, Gerard; Garret, Lawrence (December 2007). "Suggested Revised H Values of Selected Asteroids: Report Number 3". The Minor Planet Bulletin. 34 (4): 95–99. Bibcode:2007MPBu...34...95F. ISSN   1052-8091 . Retrieved 15 February 2017.
    11. ↑ "JPL Small-Body Database Search Engine: spec. type: A (SMASSII)". JPL Solar System Dynamics . Retrieved 14 June 2015.
    12. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 15 February 2017.
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