4947 Ninkasi
| Discovery[1] | |
|---|---|
| Discovered by | C. S. Shoemaker |
| Discovery site | Palomar |
| Discovery date | 12 October 1988 |
| Designations | |
| MPC designation | 1988 TJ1 |
Named after | Ninkasi |
| MPO 337294 | |
| Amor | |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 13659 days (37.40 yr) |
| Aphelion | 1.600761485818500 AU (239.47050977701 Gm) |
| Perihelion | 1.13928481550582 AU (170.43458252051 Gm) |
| 1.370023150662 AU (204.9525461487 Gm) | |
| Eccentricity | 0.1684192964511710 |
| 1.60 yr (585.72 d) | |
| 337.8470256565600° | |
| 0° 36m 52.66s / day | |
| Inclination | 15.65150318051197° |
| 215.4605646418820° | |
| 192.858019947831° | |
| Earth MOID | 0.148912 AU (22.2769 Gm) |
| Jupiter MOID | 3.77641 AU (564.943 Gm) |
| Jupiter Tisserand parameter | 4.772 |
| Physical characteristics | |
| Dimensions | 670–1500 meters[3] |
| 18.0[2] | |
|
| |
4947 Ninkasi (or 1988 TJ1) is an Amor asteroid discovered on October 12, 1988 by C. S. Shoemaker at Palomar.
It was named after Ninkasi, the Sumerian goddess of wine and beer, who helped the god Lugalbanda rescue the tablets of fate from the demon Zu.[4]
With an absolute magnitude of 18.0,[2] the asteroid is about 670–1500 meters in diameter.[3] On 2031-Apr-20 the asteroid will pass 0.02917 AU (4,364,000 km; 2,712,000 mi) from Mars.[2]
References
- ↑ "(4947) Ninkasi = 1988 TJ1". Minor Planet Center. Retrieved 2015-06-04.
- 1 2 3 4 "JPL Small-Body Database Browser: 4947 Ninkasi (1988 TJ1)". Jet Propulsion Laboratory. Retrieved 13 April 2016.
- 1 2 "Absolute Magnitude (H)". NASA/JPL. Retrieved 2014-06-25.
- ↑ Dictionary of minor planet names, by Lutz D. Schmadel.
External links
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