| Discovery[1] | |
|---|---|
| Discovered by | J. Alu |
| Discovery site | Palomar Obs. |
| Discovery date | 14 March 1988 |
| Designations | |
| (6382) 1988 EL | |
| 1988 EL · 1983 EC1 | |
| main-belt · (inner)[1] Hungaria[2][3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 29.01 yr (10,596 days) |
| Aphelion | 1.9102AU |
| Perihelion | 1.7388 AU |
| 1.8245 AU | |
| Eccentricity | 0.0470 |
| 2.46yr (900 days) | |
| 349.44° | |
| 0° 23m 59.64s / day | |
| Inclination | 18.556° |
| 350.60° | |
| 191.91° | |
| Physical characteristics | |
| Dimensions | 4.22 km(calculated)[3] 4.931±0.042 km[1][4] 5.311±0.013 km[5] |
| 2.892±0.005 h[6] 2.8932±0.0005 h[7] 2.894±0.001 h[8] 2.895±0.002h[9] 2.898±0.001 h[10] | |
| 0.1896±0.0604[5] 0.254±0.035[1][4] 0.3(assumed)[3] | |
| E[3] · S[8] | |
| 13.8[1][3][5] · 14.08±0.49[11] | |
(6382) 1988 EL (provisional designation1988 EL) is a stony Hungariaasteroid from the inner regions of theasteroid belt, approximately 5 kilometers in diameter. It was discovered on 14 March 1988, by American astronomerJeffrey Alu at the U.S.Palomar Observatory, California.[2]
The presumedE-type asteroid may not be a member of theHungaria family, which form the innermost dense concentration of asteroids in the Solar System, but an unrelatedinterloper, which intruded into the Hungaria orbital space, as indicated by a lower albedos from observations by theNEOWISE mission.[7]: 169 It orbits the Sun at a distance of 1.7–1.9 AU once every 2 years and 6 months (900 days). Its orbit has aneccentricity of 0.05 and aninclination of 19° with respect to theecliptic.[1] The body's first yet unused observation was made at the ChinesePurple Mountain Observatory in 1983.[2] On 13 April 2042 and on 3 October 2113, the asteroid will pass 0.086 AU (12,900,000 km) and 0.092 AU (13,800,000 km) fromMars, respectively.[1]
Between February 2005 and January 2015, American astronomerBrian D. Warner obtained 5 rotationallightcurves for this asteroid fromphotometric observations at the CS3–Palmer Divide Station in Colorado. The lightcurves gave a well-definedrotation period of 2.892–2.898 hours with a low brightness variation between 0.06 and 0.15magnitude (U=2/3-/3/2+/3).[6][7][8][9][10]
According to two different data sets from space-based survey carried out by the NEOWISE mission of NASA'sWide-field Infrared Survey Explorer, the asteroid measures 4.9 and 5.3 kilometers in diameter and its surface has analbedo of 0.19 and 0.25, respectively,[5][4] while theCollaborative Asteroid Lightcurve Link assumes an albedo of 0.30 – a compromise value between 0.4 and 0.2, corresponding to the Hungaria asteroids ascollisional family and orbital group, respectively – and calculates a smaller diameter of 4.2 kilometers, based on anabsolute magnitude of 13.8.[3]
As of 2017,1988 EL remains unnamed.[2]
