| Discovery[1] | |
|---|---|
| Discovered by | INAS |
| Discovery site | Palomar Obs. |
| Discovery date | 2 May 1986 |
| Designations | |
| (10046) Creighton | |
Named after | James M. Creighton (American architect)[1] |
| 1986 JC · 1986 LD 1990 KH2 · 1990 SJ10 | |
| main-belt[1][2] · (inner) background[3] | |
| Orbital characteristics[2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 63.74yr (23,280 d) |
| Aphelion | 2.8999AU |
| Perihelion | 1.7791 AU |
| 2.3395 AU | |
| Eccentricity | 0.2396 |
| 3.58 yr (1,307 d) | |
| 297.13° | |
| 0° 16m 31.44s / day | |
| Inclination | 8.3234° |
| 101.68° | |
| 176.98° | |
| Physical characteristics | |
| 9.80±2.58 km[4] 10.00±0.67 km[5] 10.428±0.207 km[6][7] 11.15±2.45 km[8] 12.40 km(derived)[9] | |
| 6.566±0.002 h[a] 6.567±0.0036 h[10] 6.5698±0.0002 h[11] | |
| 0.0417(derived)[9] 0.05±0.01[5] 0.052±0.038[8] 0.07±0.04[4] 0.071±0.013[6][7] | |
| X [12] · C[b] | |
| 13.4[7] 13.50[4] 13.60[2][8][9] 13.637±0.009(R)[10] 13.73±0.32[12] 13.85[5] | |
10046 Creighton, provisional designation1986 JC, is a carbonaceous backgroundasteroid from the inner regions of theasteroid belt, approximately 10 kilometers (6.2 miles) in diameter. It was discovered on 2 May 1986, by astronomers with theInternational Near-Earth Asteroid Survey (INAS) atPalomar Observatory, California, in the United States.[1] TheC-type asteroid has arotation period of 6.57 hours.[9] It was named after American architectJames M. Creighton.[1]
Creighton is a non-family asteroid from the main belt'sbackground population.[3] It orbits the Sun in theinner main-belt at a distance of 1.8–2.9 AU once every 3 years and 7 months (1,307 days;semi-major axis of 2.34 AU). Its orbit has aneccentricity of 0.24 and aninclination of 8° with respect to theecliptic.[2] The body'sobservation arc begins with aprecovery taken at the discovering observatory in July 1954, nearly 32 years prior to its official discovery observation.[1]
Creighton has been characterized as a commonX-type asteroid by Pan-STARRS' photometric survey.[12] It is also characterized as a darkC-type asteroid in theSDSS-MFB (Masi Foglia Binzel) taxonomy.[9][b]
In April 2011, a rotationallight-curve was obtained for this asteroid from photometric observations by American astronomerBrian Skiff. The light-curve gave a well-definedrotation period of6.566±0.002 hours with a brightness variation of 0.68 inmagnitude (U=3).[a] Two other light-curves – obtained at thePalomar Transient Factory, California, in February 2014, and by astronomer Maurice Clark at Texas Tech's Preston Gott Observatory in June 2011 – are in agreement with a period of6.5668±0.0036 and6.5698±0.0002 hours, and an amplitude of 0.46 and 0.65, respectively (U=2/3-).[10][11]
According to the survey carried out by theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Creighton measures between 9.80 and 11.15 kilometers in diameter and its surface has analbedo between 0.05 and 0.071.[4][5][6][7][8]
TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.0417 and a diameter of 12.40 kilometers based on anabsolute magnitude of 13.6.[9]
Thisminor planet was named after pioneering American architectJames M. Creighton (1856–1946), who designed theOld Main building at Arizona State University, and designed and constructed the original road to the summit ofPikes Peak in Colorado.[1] The official naming citation was published by theMinor Planet Center on 2 December 2009 (M.P.C. 67759).[13]
