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1373 Cincinnati (1935 QN)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001373
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 83 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3145412859861558 4.1482e-08  
a 3.419404096146831 1.5937e-08 au
q 2.343860334438478 1.4013e-07 au
i 38.93810015347039 6.1217e-06 deg
node 297.4741262346778 7.2994e-06 deg
peri 99.07000841864843 1.2982e-05 deg
M 160.4714211660318 9.6731e-06 deg
tp 2457971.016794027361
(2017-Aug-05.51679403)
5.7955e-05 TDB
period 2309.532447940959
6.32
1.6146e-05
4.421e-08
d
yr
n .1558757056307888 1.0897e-09 deg/d
Q 4.494947857855183 2.0949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2131  
   data-arc span      30816 days (84.37 yr)  
   first obs. used      1935-09-10  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37324  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:53:07  

Additional Information
 Earth MOID = 1.63304 au 
 Jupiter MOID = 1.77976 au 
 T_jup = 2.719 
[ 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 11.5   n/a MPO395004  
diameter diameter 19.448 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.2834 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2005) Minor Planet Bull. 32, 4-7.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.155   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Xk   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1373 Cincinnati (1935 QN)          Discovered 1935-Aug-30 by Hubble, E. at Mount Wilson
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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