_Amata.png) Modelled shape ofAmata from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 29 September 1924 |
| Designations | |
| (1035) Amata | |
| Pronunciation | /əˈmeɪtə/[2] |
Named after | Amata(Roman mythology)[3] |
| 1924 SW · 1935 SU 1969 TJ4 · A913 UC | |
| main-belt · (outer)[4] | |
| Orbital characteristics[1] | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 102.63 yr (37,484 days) |
| Aphelion | 3.7582AU |
| Perihelion | 2.5551 AU |
| 3.1566 AU | |
| Eccentricity | 0.1906 |
| 5.61yr (2,049 days) | |
| 242.46° | |
| 0° 10m 32.52s / day | |
| Inclination | 18.030° |
| 1.9593° | |
| 323.98° | |
| Physical characteristics | |
| Dimensions | 50.69±2.9 km(IRAS:5)[5] 50.74 km(derived)[4] 56.063±0.404[6] 59.28±0.79 km[7] 59.838±0.563 km[8] 60±6 km[9] 62.22±1.11 km[10] |
| 9.05±0.01h[11] 9.081±0.001 h[12] 9.08215±0.00001 h[13] 9.7±0.07 h[14] | |
| 0.0374±0.0079[8] 0.038±0.003[10][6] 0.039±0.001[7] 0.04±0.01[9] 0.0522±0.006(IRAS:5)[5] 0.0571(derived)[4] | |
| C[4] | |
| 10.2[4][9][10] · 10.3[1][5][7][8] | |
1035 Amata/əˈmeɪtə/ is a carbonaceousasteroid from the outer region of theasteroid belt, approximately 57 kilometers in diameter. It was discovered by German astronomerKarl Reinmuth atHeidelberg Observatory in southern Germany on 29 September 1924 and assigned the provisional designation1924 SW.[15] It was probably named afterAmata from Roman mythology.[3]
TheC-type asteroid orbits the Sun at a distance of 2.6–3.8 AU once every 5 years and 7 months (2,049 days). Its orbit has aneccentricity of 0.19 and aninclination of 18° with respect to theecliptic.[1] The first used observation was taken at the discovering observatory in 1913, extending the body'sobservation arc by 11 years prior to its discovery.[15]
Amata's name is ofuncertain origin. It is thought to have been named afterAmata, wife of King Latinus in Roman mythology and a character in Virgil'sAeneid. She is also the mother of Lavinia, the wife of Aeneas, after whom1172 Äneas, one of the largestJupiter trojans, is named.[3]
Among the many thousands ofnamed minor planets,Amata is one of 120 asteroids, for which no official naming citation has been published. All of these low-numbered asteroids have numbers between164 Eva and1514 Ricouxa and were discovered between 1876 and the 1930s, predominantly by astronomersAuguste Charlois,Johann Palisa,Max Wolf andKarl Reinmuth.[16]
In October 2002, a rotationallight-curve ofAmata was obtained from photometric observations by American amateur astronomer Robert Stevens at the Santana Observatory (646) in California. It gave arotation period of9.081±0.001 hours with a brightness variation of 0.44 inmagnitude (U=3).[12] In the same month, another observation was made at theOakley Observatory in the U.S. state of Indiana and gave a very similar period of9.05±0.01 hours and a variation in brightness of 0.32 in magnitude (U=2).[11]
According to the space-based surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite, and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Amata measures between 50.7 and 62.2 kilometers in diameter, and its surface has a lowalbedo between 0.038 and 0.052.[5][6][7][8][9][10] TheCollaborative Asteroid Lightcurve Link derived a diameter of 50.7 kilometers and an albedo of 0.057.[4]
