Discovery [1] | |
---|---|
Discovered by | LINEAR |
Discovery site | Lincoln Lab's ETS |
Discovery date | 10 December 1999 |
Designations | |
(75482) 1999 XC173 | |
1999 XC173 ·2001 KY49 | |
main-belt · Vestian [2] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 16.82 yr (6,143 days) |
Aphelion | 2.5436 AU |
Perihelion | 2.1844 AU |
2.3640 AU | |
Eccentricity | 0.0760 |
3.63 yr (1,328 days) | |
310.28° | |
0° 16m 16.32s / day | |
Inclination | 6.1205° |
58.882° | |
48.553° | |
Physical characteristics | |
Dimensions | 2.96 km (calculated) [2] |
1234.1709±89.9916 h [3] | |
0.20 (assumed) [2] | |
S [2] | |
14.5 [1] ·14.557±0.004(R) [3] ·15.01 [2] | |
(75482) 1999 XC173 is a stony Vestian asteroid and an exceptionally slow rotating body from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 10 December 1999, by LINEAR at Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, United States. [4]
The body is classified as a S-type member of the Vesta family by the Collaborative Asteroid Lightcurve Link's Light Curve Data Base (LCDB) . [2] It orbits the Sun at a distance of 2.2–2.5 AU once every 3 years and 8 months (1,328 days). Its orbit has an eccentricity of 0.08 and an inclination of 6° with respect to the ecliptic. [1] A first precovery was obtained at the discovering observatory in October 1999, extending the asteroid's observation arc by 2 months prior to its official discovery observation. [4]
A rotational lightcurve was obtained for this asteroid from photometric observations at the Californian Palomar Transient Factory in September 2013. It gave a rotation period of 1234 hours with an estimated error margin of ±90 hours. As of 2016 [update] , it is the 6th slowest rotating minor planet known to exist. Its high brightness variation of 0.69 magnitude indicates that it has a non-spheroidal shape ( U=2 ). [3]
According to the LCDB, the body's surface has an assumed standard albedo for stony asteroids of 0.20 and a calculated diameter of 2.96 kilometers with an absolute magnitude of 15.01. [2]
This minor planet was numbered by the Minor Planet Center on 15 April 2004. [5] As of 2018, it has not been named. [4]
1988 Delores, provisional designation 1952 SV, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter.
(9992) 1997 TG19 is a stony asteroid and eccentric Mars-crosser, approximately 4 kilometers in diameter. It was discovered on 8 October 1997, by Japanese astronomers Tetsuo Kagawa and Takeshi Urata at Gekko Observatory near Shizuoka, Japan.
16879 Campai, provisional designation 1998 BH10, is a stony Witt asteroid and slow rotator from the central region of the asteroid belt, approximately 10 kilometers (6 miles) in diameter. The S-type asteroid was discovered on 24 January 1998, by Italian astronomers Andrea Boattini and Maura Tombelli at the Pistoia Mountains Astronomical Observatory in San Marcello Pistoiese, Tuscany, central Italy. It was named for Italian amateur astronomer Paolo Campai.
(9942) 1989 TM1, provisional designation 1989 TM1, is a background asteroid from the central region of the asteroid belt, approximately 4.5 kilometers (2.8 miles) in diameter. It was discovered on 8 October 1989, by Japanese astronomers Nobuhiro Kawasato and Tsutomu Hioki at the Okutama Observatory (877) in Japan. The asteroid has a tentative rotation period of 3.1 hours.
9910 Vogelweide, provisional designation 3181 T-2, is a stony Koronian asteroid and elongated slow rotator from the outer regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered during the second Palomar–Leiden trojan survey in 1973, and named after German medieval poet Walther von der Vogelweide.
49777 Cappi, provisional designation 1999 XS, is a stony background asteroid from the inner regions of the asteroid belt, approximately 2 kilometers in diameter.
6470 Aldrin, provisional designation 1982 RO1, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter.
3771 Alexejtolstoj (provisional designation 1974 SB3) is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 3.7 kilometers in diameter. It was discovered on 20 September 1974, by Russian–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula. The asteroid was named after writer Aleksey Nikolayevich Tolstoy.
11824 Alpaidze, provisional designation 1982 SO5, is a stony background asteroid from the middle region of the asteroid belt, approximately 5 kilometers (3.1 miles) in diameter. It was discovered on 16 September 1982, by Russian astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula. The asteroid was named for Soviet General Galaktion Alpaidze.
9344 Klopstock, provisional designation 1991 RB4, is a background asteroid from the inner regions of the asteroid belt. It was discovered on 12 September 1991, by German astronomers Freimut Börngen and Lutz Schmadel at the Karl Schwarzschild Observatory in Tautenburg, Germany. Poor observational data suggests that the asteroid is one of the darkest known objects with a diameter of approximately 17 kilometers (11 miles), while it is also an assumed stony asteroid with a much smaller diameter. It has a rotation period of 5.84 hours and was named after German poet Friedrich Gottlieb Klopstock.
17163 Vasifedoseev, provisional designation 1999 LT19, is a stony Koronian asteroid from the outer region of the asteroid belt, approximately 4 kilometers in diameter.
9641 Demazière, provisional designation 1994 PB30, is a stony asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered by Belgian astronomer Eric Elst at ESO's La Silla Observatory site in northern Chile on 12 August 1994. The asteroid was named for Belgian scientist Martine De Mazière.
10551 Göteborg, provisional designation 1992 YL2, is a stony Eoan asteroid and slow rotator from the outer region of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 18 December 1992, by Belgian astronomer Eric Elst at CERGA in Caussols (010), southeastern France. The asteroid was named after the Swedish city of Gothenburg (Göteborg).
12838 Adamsmith, provisional designation 1997 EL55, is a stony Koronis asteroid from the outer region of the asteroid belt, approximately 6 kilometers in diameter. The asteroid was discovered on 9 March 1997, by Belgian astronomer Eric Walter Elst at ESO's La Silla Observatory in northern Chile. It was named after Scottish philosopher and economist Adam Smith.
21501 Acevedo, provisional designation 1998 KC8, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 2.4 kilometers in diameter.
22577 Alfiuccio, provisional designation 1998 HT51, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 2.4 kilometers in diameter. It was discovered on 30 April 1998, by the Lowell Observatory Near-Earth-Object Search at Anderson Mesa Station in Flagstaff, Arizona, United States. It was named in memory of Alfio Grasso, an Italian boy from Sicily.
(11474) 1982 SM2 is a carbonaceous Baptistina asteroid and potentially slow rotator from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 18 September 1982, by Belgian astronomer Henri Debehogne at ESO' La Silla Observatory in northern Chile.
31641 Cevasco, provisional designation 1999 GW34, is a stony Nysian asteroid from the inner regions of the asteroid belt, approximately 3.3 kilometers in diameter. It was discovered on 6 April 1999, by the Lincoln Near-Earth Asteroid Research project at Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, United States. The asteroid was named for Hannah Cevasco, a 2015 Broadcom MASTERS awardee.
50719 Elizabethgriffin, provisional designation 2000 EG140, is a stony Maria asteroid and exceptionally slow rotator from the central region of the asteroid belt, approximately 3.3 kilometers (2.1 miles) in diameter. It was discovered on 1 March 2000, by astronomers with the Catalina Sky Survey at Mount Lemmon Observatory, Arizona, United States. It was named for Canadian astronomer Elizabeth Griffin.
(219774) 2001 YY145, provisional designation 2001 YY145 is a stony background asteroid and exceptionally slow rotator from the central region of the asteroid belt, approximately 1.5 kilometers (0.9 miles) in diameter. It was discovered on 18 December 2001, by astronomers with the Lowell Observatory Near-Earth-Object Search at Anderson Mesa Station near Flagstaff, Arizona, in the United States. The assumed S-type asteroid is likely elongated and has a rarely seen rotation period of 1007 hours, making it the 13th slowest rotator.