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111 Ate

From Wikipedia, the free encyclopedia
Main-belt asteroid
For other uses, seeAte (disambiguation).

111 Ate
Orbital diagram
Discovery
Discovered byChristian Heinrich Friedrich Peters
Discovery date14 August 1870
Designations
(111) Ate
Pronunciation/ˈeɪtiː/[1]
Named after
Ate
A870 PA; 1911 KE;
1935 AA
Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc145.66 yr (53202 d)
Aphelion2.8614 AU (428.06 Gm)
Perihelion2.32553 AU (347.894 Gm)
2.59349 AU (387.981 Gm)
Eccentricity0.10332
4.18yr (1525.5d)
18.44 km/s
190.607°
0° 14m 9.532s / day
Inclination4.9318°
305.757°
166.424°
Earth MOID1.34088 AU (200.593 Gm)
Jupiter MOID2.23131 AU (333.799 Gm)
TJupiter3.406
Physical characteristics
Dimensions126.34 km[2]
142.85 ± 5.94 km[3]
Mass(1.76 ± 0.44) × 1018 kg[3]
1.15 ± 0.32 g/cm3[3]
0.0376 m/s²
Equatorialescape velocity
0.0712 km/s
22.072 h (0.9197 d)[2]
22.072 ± 0.001 h[4]
0.0605±0.004
Temperature~173K
C[5]
8.02

111 Ate is amain-beltasteroid discovered by the German-American astronomerC. H. F. Peters on August 14, 1870,[6] and named afterAte, the goddess of mischief and destruction inGreek mythology. In theTholen classification system, it is categorized as acarbonaceousC-type asteroid, while the Busasteroid taxonomy system lists it as an Ch asteroid.[5]

Twostellaroccultations by Ate were observed in 2000, twomonths apart. Its occultation of the star HIP 2559 was used to determine a chord length of 125.6 ± 7.2 km through the asteroid, giving a lower bound on the maximum dimension.[7] During 2000, 111 Ate was observed by radar from theArecibo Observatory. The return signal matched an effective diameter of 135 ± 15 km.[8] The estimated size of this asteroid is 143 km,[3] making it one ofthe larger asteroids.

Based upon an irregularlight curve generated fromphotometric observations of this asteroid atPulkovo Observatory, it has a rotation period of 22.072 ± 0.001 hours and varies in brightness by 0.12 ± 0.01 inmagnitude.[4]

References

[edit]
  1. ^Noah Webster (1884)A Practical Dictionary of the English Language
  2. ^abcYeomans, Donald K.,"111 Ate",JPL Small-Body Database Browser,NASA Jet Propulsion Laboratory, retrieved12 May 2016.
  3. ^abcdCarry, B. (December 2012), "Density of asteroids",Planetary and Space Science, vol. 73, pp. 98–118,arXiv:1203.4336,Bibcode:2012P&SS...73...98C,doi:10.1016/j.pss.2012.03.009. See Table 1.
  4. ^abPilcher, Frederick (October 2011), "Rotation Period Determinations for 11 Parthenope, 38 Leda, 111 Ate 194 Prokne, 217 Eudora, and 224 Oceana",The Minor Planet Bulletin, vol. 38, no. 4, pp. 183–185,Bibcode:2011MPBu...38..183P.
  5. ^abDeMeo, Francesca E.; et al. (July 2009),"An extension of the Bus asteroid taxonomy into the near-infrared"(PDF),Icarus, vol. 202, no. 1, pp. 160–180,Bibcode:2009Icar..202..160D,doi:10.1016/j.icarus.2009.02.005, archived fromthe original(PDF) on 17 March 2014, retrieved8 April 2013. See appendix A.
  6. ^"Numbered Minor Planets 1–5000",Discovery Circumstances, IAU Minor Planet center, retrieved7 April 2013.
  7. ^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, vol. 56, no. 14, pp. 1888–1892,Bibcode:2008P&SS...56.1888D,doi:10.1016/j.pss.2008.02.014. See Table 1.
  8. ^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

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