| Discovery [1] | |
|---|---|
| Discovered by | T. Kagawa T. Urata |
| Discovery site | Gekko Obs. |
| Discovery date | 8 October 1997 |
| Designations | |
| (9992) 1997 TG19 | |
| 1997 TG19 ·1974 HC1 1980 BD | |
| Mars-crosser [1] [2] | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 42.77 yr (15,622 days) |
| Aphelion | 2.8054 AU |
| Perihelion | 1.5370 AU |
| 2.1712 AU | |
| Eccentricity | 0.2921 |
| 3.20 yr (1,169 days) | |
| 154.42° | |
| 0° 18m 29.16s / day | |
| Inclination | 2.5944° |
| 42.994° | |
| 234.83° | |
| Physical characteristics | |
| Dimensions | 3.07 km (derived) [2] 4.75±0.36 km [3] |
| 5.7300±0.0016 h [4] 5.7402±0.0005 h [5] 5.7408±0.0009 h [lower-alpha 1] | |
| 0.137±0.022 [3] 0.20 (assumed) [2] | |
| S [2] | |
| 14.40 [3] ·14.48±0.08(R) [lower-alpha 1] ·14.5 [1] ·14.663±0.004(R) [4] ·14.76±0.26 [6] ·14.97±0.094 [2] [7] | |
(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. [8]
The stony S-type asteroid orbits the Sun at a distance of 1.5–2.8 AU once every 3 years and 2 months (1,169 days). Its orbit has an eccentricity of 0.29 and an inclination of 3° with respect to the ecliptic. [1] The first used observation was made at the Cerro El Roble Station in 1974, extending the asteroid's observation arc by 23 prior to its discovery. [8]
Between 2006 and 2013, three rotational lightcurves for this asteroid were obtained from photometric observations made at the Hunters Hill Observatory, Australia, the Ondřejov Observatory, Czech Republic, and the U.S. Palomar Transient Factory, California. They gave a well-defined, concurring rotation period of 5.7402±0.0005 hours (best result) with a brightness amplitude of 0.42, 0.40 and 0.27 in magnitude, respectively ( U=3/3/2 ). [lower-alpha 1] [4] [5]
According to the survey carried out by the Japanese Akari satellite, the asteroid's surface has an albedo of 0.13 and a diameter of 4.75 kilometers. [3] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 3.1 kilometers, as the higher the body's albedo (reflectivity), the shorter its diameter, at a constant absolute magnitude (brightness). [2]
This minor planet was numbered by the Minor Planet Center on 2 February 1999. [9] As of 2018, it has not been named. [8]
4197 Morpheus, provisional designation 1982 TA, is a highly eccentric asteroid and near-Earth object of the Apollo group, approximately 3 kilometers in diameter. It was discovered on 11 October 1982, by American astronomers Eleanor Helin and Eugene Shoemaker at Palomar Observatory in California, United States. The asteroid was later named for Morpheus from Greek mythology.
795 Fini is a dark and large background asteroid, approximately 76 kilometers in diameter, located in the central region of the asteroid belt. It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 26 September 1914. The carbonaceous C-type asteroid has a poorly determined rotation period of 9.3 hours and seems rather spherical in shape. Any reference of the asteroid's name to a person is unknown.
9617 Grahamchapman, provisional designation 1993 FA5, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 2.8 kilometers in diameter.
1065 Amundsenia, provisional designation 1926 PD, is a stony asteroid and sizeable Mars-crosser on an eccentric orbit from the inner asteroid belt, approximately 10 kilometers in diameter. It was discovered on 4 August 1926, by Soviet astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after Norwegian polar explorer Roald Amundsen.
6084 Bascom, provisional designation 1985 CT, is a binary Phocaea asteroid from the inner regions of the asteroid belt, approximately 6.3 kilometers in diameter. It was discovered on 12 February 1985, by American astronomer couple Carolyn and Eugene Shoemaker at Palomar Observatory in California. It is named after American geologist Florence Bascom. Its satellite measures approximately 2.3 kilometers and has an orbital period of 43.51 hours.
4029 Bridges, provisional designation 1982 KC1, is a stony asteroid and binary system from the middle regions of the asteroid belt, approximately 8 kilometers in diameter.
1806 Derice, provisional designation 1971 LC, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. Discovered on 13 June 1971, at the Bickley site of the Perth Observatory in Western Australia, it was the first discovery of a minor planet ever made in Oceania. The asteroid was named after the wife of Dennis Harwood, staff member at Bickley.
1338 Duponta, provisional designation 1934 XA, is a stony Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 7.8 kilometers in diameter.
1736 Floirac, provisional designation 1967 RA, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8.7 kilometer in diameter.
5905 Johnson, provisional designation 1989 CJ1, is a Hungaria asteroid and synchronous binary system from the innermost regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 11 February 1989, by American astronomer Eleanor Helin at Palomar Observatory in California, United States. Its satellite measures approximately 1.6 km (1 mi) in diameter and orbits its primary every 21.8 hours. It was named after American astronomer and engineer Lindley N. Johnson.
19763 Klimesh is a stony Phocaea asteroid and slow rotator from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. Discovered by NEAT at Haleakala Observatory in 2000, the asteroid was named for NEAT's software specialist Matthew Klimesh.
15350 Naganuma, provisional designation 1994 VB2, is a stony background asteroid from the inner regions of the asteroid belt, approximately 4.3 kilometers (2.7 miles) in diameter. It was discovered on 3 November 1994, by Japanese astronomers Yoshio Kushida and Osamu Muramatsu at the Yatsugatake South Base Observatory. The likely S-type asteroid has a rotation period of 2.5 hours. It was named for the town of Naganuma in northern Japan.
13154 Petermrva, provisional designation 1995 RC, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 4.2 kilometers in diameter. It was discovered on 7 September 1995, by Slovak astronomers Adrián Galád and Alexander Pravda at the Modra Observatory in the Bratislava Region of Slovakia. The asteroid was named after Slovak amateur astronomer Peter Mrva.
2815 Soma, provisional designation 1982 RL, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 15 September 1982, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Flagstaff, Arizona, in the United States. It is named for the mechanical puzzle Soma cube.
1293 Sonja, provisional designation 1933 SO, is a stony asteroid and bright Mars-crosser from the innermost regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 26 September 1933, by Belgian astronomer Eugène Delporte at Uccle Observatory in Belgium. Two nights later, Sonja was independently discovered by Soviet astronomer Grigory Neujmin at Simeiz on the Crimean peninsula. The origin of the asteroid's name is unknown.
4082 Swann, provisional designation 1984 SW3, is a carbonaceous asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter.
3402 Wisdom, provisional designation 1981 PB, is a stony asteroid and Mars-crosser on an eccentric orbit from the inner regions of the asteroid belt, approximately 2.5 kilometers in diameter. It was discovered on 5 August 1981, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona, in the United States. The presumed bright S-type asteroid has a rotation period of 4.99 hours. It was named after American planetary scientist Jack Wisdom.
10208 Germanicus, provisional designation 1997 QN1, is a stony Florian asteroid and binary system from the inner regions of the asteroid belt, approximately 3.5 kilometers in diameter.
21088 Chelyabinsk (provisional designation 1992 BL2) is a stony asteroid and near-Earth object of the Amor group, approximately 4 kilometers in diameter. It was discovered on 30 January 1992, by Belgian astronomer Eric Elst at ESO's La Silla Observatory in northern Chile. The asteroid was named after the Russian city of Chelyabinsk and for its spectacular Chelyabinsk meteor event in 2013.
32008 Adriángalád (provisional designation 2000 HM53) is a background asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 29 April 2000, by astronomers with the LINEAR program at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States. The V-type asteroid has a rotation period of 3.0 hours. It was named for Slovak astronomer Adrián Galád. Its 1.6-kilometer sized minor-planet moon was discovered in August 2007.
