| Discovery[1] | |
|---|---|
| Discovered by | E. F. Helin |
| Discovery site | Palomar Obs. |
| Discovery date | 18 May 1990 |
| Designations | |
| (8013) Gordonmoore | |
Named after | Gordon Moore (Intel co-founder)[2] |
| 1990 KA | |
| NEO · Amor[1][3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 64.90 yr (23,703 days) |
| Earliestprecovery date | 1 September 1951 |
| Aphelion | 3.1498AU |
| Perihelion | 1.2503 AU |
| 2.2000 AU | |
| Eccentricity | 0.4317 |
| 3.26yr (1,192 days) | |
| 126.01° | |
| 0° 18m 7.2s / day | |
| Inclination | 7.5685° |
| 105.57° | |
| 146.73° | |
| Earth MOID | 0.2472 AU · 96.3LD |
| Physical characteristics | |
| Dimensions | 1.04 km(derived)[4] 2.3 km[1] |
| 6h(dated)[5] 8.40±0.01 h[6] | |
| 0.20(assumed)[4] | |
| S[4] | |
| 16.67±0.2(R)[4] · 16.9[1] · 17.26±0.149[7] · 17.26[4] · 17.27±0.15[8] | |
8013 Gordonmoore, provisional designation1990 KA, is an eccentric, stonyasteroid andnear-Earth object of theApollo group, approximately 1–2 kilometers in diameter.
The asteroid was discovered on 18 May 1990, by American astronomerEleanor Helin atPalomar Observatory in California, United States.[3] It was named after Intel co-founderGordon Moore.[2]
Gordonmoore orbits the Sun at a distance of 1.3–3.1 AU once every 3 years and 3 months (1,192 days). Its orbit has aneccentricity of 0.43 and aninclination of 8° with respect to theecliptic.[1]
It has aminimum orbit intersection distance with Earth of 0.2472 AU (37,000,000 km), or 96.3lunar distance. Due to its eccentric orbit,Gordonmoore is alsoMars-crosser. In 2127, the asteroid will pass the Red Planet within 0.02776 AU (4,150,000 km).[1]
A firstprecovery was taken at the discovering Palomar Observatory in 1951, extending the body'sobservation arc by 39 years prior to its official discovery observation.[3]
In April 2016, a rotationallightcurve ofGordonmoore was obtained from photometric observations by astronomerBrian Warner at the Palmer Divide Station (716) in Colorado. It gave arotation period of8.40 hours with a brightness variation of 0.25magnitude. Lightcurve analysis also gave an alternative period solution of 4.19 hours with an amplitude of 0.25 magnitude. (U=2).[6] The results supersede a previous observations made at theHoher List Observatory in Germany, that gave a shorter period of 6 hours (U=1).[5]
TheCollaborative Asteroid Lightcurve Link assumes a standardalbedo forstony asteroids of 0.20 and calculates a diameter of 1.04 kilometers with anabsolute magnitude of 17.26.[4] In the 1990s,Tom Gehrels estimated the body's diameter to be 2.3 kilometers, assuming an albedo of 0.15.[1]
Thisminor planet was named in honour of American entrepreneur and billionaire,Gordon Moore (1929–2023), co-founder ofIntel, known for his revolutionary vision of the future of computers, and author ofMoore's law. As a philanthropist, Moore has supported research and education all his life.[2] The official naming citation was published by theMinor Planet Center on 26 May 2002 (M.P.C. 45747).[9]
