111 Ate
| Discovery | |
|---|---|
| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | 14 August 1870 |
| Designations | |
| 1935 AA, A911 KE | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 145.66 yr (53202 d) |
| Aphelion | 2.8614 AU (428.06 Gm) |
| Perihelion | 2.32553 AU (347.894 Gm) |
| 2.59349 AU (387.981 Gm) | |
| Eccentricity | 0.10332 |
| 4.18 yr (1525.5 d) | |
Average orbital speed | 18.44 km/s |
| 190.607° | |
| 0° 14m 9.532s / day | |
| Inclination | 4.9318° |
| 305.757° | |
| 166.424° | |
| Earth MOID | 1.34088 AU (200.593 Gm) |
| Jupiter MOID | 2.23131 AU (333.799 Gm) |
| Jupiter Tisserand parameter | 3.406 |
| Physical characteristics | |
| Dimensions |
134.55±4.6 km[1] 142.85 ± 5.94 km[2] |
| Mass | (1.76 ± 0.44) × 1018 kg[2] |
Mean density | 1.15 ± 0.32 g/cm3[2] |
Equatorial surface gravity | 0.0376 m/s² |
Equatorial escape velocity | 0.0712 km/s |
|
22.072 h (0.9197 d)[1] 22.072 ± 0.001 h[3] | |
| 0.0605±0.004 | |
| Temperature | ~173 K |
| C[4] | |
| 8.02 | |
|
| |
111 Ate is a main-belt asteroid that was discovered by the German-American astronomer C. H. F. Peters on August 14, 1870,[5] and named after Ate, the goddess of mischief and destruction in Greek mythology. In the Tholen classification system, it is categorized as a carbonaceous C-type asteroid, while the Bus asteroid taxonomy system lists it as an Ch asteroid.[4]
Two stellar occultations by Ate were observed in 2000, only two months apart. The occultation of the star HIP 2559 by 111 Ate was used to determine a chord length of 125.6 ± 7.2 km through the asteroid, giving a lower bound on the maximum dimension.[6] During 2000, 111 Ate was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 135 ± 15 km.[7] The estimated size of this asteroid is 143[2] km, making it one of the larger asteroids.
Based upon an irregular light curve that was generated from photometric observations of this asteroid at Pulkovo Observatory, it has a rotation period of 22.072 ± 0.001 hours and varies in brightness by 0.12 ± 0.01 in magnitude.[3]
References
- 1 2 3 Yeomans, Donald K., "111 Ate", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
- 1 2 3 4 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336
, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1. - 1 2 Pilcher, Frederick (October 2011), "Rotation Period Determinations for 11 Parthenope, 38 Leda, 111 Ate 194 Prokne, 217 Eudora, and 224 Oceana", The Minor Planet Bulletin, 38 (4), pp. 183–185, Bibcode:2011MPBu...38..183P.
- 1 2 DeMeo, Francesca E.; et al. (July 2009), "An extension of the Bus asteroid taxonomy into the near-infrared" (PDF), Icarus, 202 (1), pp. 160–180, Bibcode:2009Icar..202..160D, doi:10.1016/j.icarus.2009.02.005, retrieved 2013-04-08. See appendix A.
- ↑ "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 2013-04-07.
- ↑ Devyatkin, A. V.; et al. (November 2008), "Photometric observations of solar system bodies with ZA-320M automatic mirror astrograph in Pulkovo observatory", Planetary and Space Science, 56 (14), pp. 1888–1892, Bibcode:2008P&SS...56.1888D, doi:10.1016/j.pss.2008.02.014. See Table 1.
- ↑ Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999–2003", Icarus, 186 (1): 126–151, Bibcode:2007Icar..186..126M, doi:10.1016/j.icarus.2006.08.018
External links
- 111 Ate at the JPL Small-Body Database
