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3177 Chillicothe (1934 AK)
Classification: Main-belt Asteroid          SPK-ID: 2003177
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .14930724184671 4.4636e-08  
a 2.632883605514202 1.0172e-08 au
q 2.239775016271456 1.1635e-07 au
i 15.9627066834851 6.5355e-06 deg
node 35.03950706902438 1.4815e-05 deg
peri 40.63204776028354 2.9521e-05 deg
M 92.24103256977509 2.288e-05 deg
tp 2458600.677185137999
9.9031e-05 TDB
period 1560.435842274868
n .2307047750679561 1.337e-09 deg/d
Q 3.025992194756949 1.1691e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2299  
   data-arc span      31599 days (86.51 yr)  
   first obs. used      1934-01-08  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3997  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:02:32  

Additional Information
 Earth MOID = 1.27468 au 
 Jupiter MOID = 2.41124 au 
 T_jup = 3.329 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.9   n/a MPO502183  
diameter diameter 15.419 km 3.671 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 3.54722 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2014) Observatoire de Geneve web site,]
[Mansego, E.A.; Rodriguez, P.B.; de Haro, J.L.; Chiner, O.R.; et al. (2016) Minor Planet Bull. 43, 332-336.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.058   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

3177 Chillicothe           Discovered 1934 Jan. 8 by H. L. Giclas at the Lowell Observatory.
Named for the southern Ohio city of Chillicothe, located at the confluence of the Scioto River and Paint Creek, on the occasion of the bicentennial of its founding by Nathanial Massie. The name is derived from the Shawnee Indian word meaning "principal town". This area was occupied by the Adena Mound Builders over 2000 years ago and at the time of its founding by the Shawnee Indians. Chillicothe served as the capital of the eastern section of the Northwest Territory and was the first capital of Ohio from 1803 to 1816. Name proposed by F. N. Bowman, who independently made the principal identification involving this planet and who lives 20 miles southwest of Chillicothe.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19960828/MPCPages.arcLast Updated: 2003-09-26

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Alternate Designations
 1934 AK = 1937 VC = 1952 HC = 1967 UL = 1971 TG1 = 1984 US 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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