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JPL Small-Body Database Browser
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160869 (2001 KM39)
Classification: Main-belt Asteroid          SPK-ID: 2160869
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3606781046032732 3.9876e-08  
a 3.193190629621238 2.5794e-08 au
q 2.041476685692517 1.288e-07 au
i 24.67675197885111 1.1961e-05 deg
node 223.5546344434354 1.2787e-05 deg
peri 111.7350014731539 2.6711e-05 deg
M 10.69873530981929 1.6674e-05 deg
tp 2458538.560793344566
(2019-Feb-24.06079334)
9.6366e-05 TDB
period 2084.182265495527
5.71
2.5253e-05
6.914e-08
d
yr
n .1727296148518027 2.0929e-09 deg/d
Q 4.344904573549958 3.5097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      496  
   data-arc span      10690 days (29.27 yr)  
   first obs. used      1990-07-25  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52118  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 18:42:51  

Additional Information
 Earth MOID = 1.16197 au 
 Jupiter MOID = 1.91064 au 
 T_jup = 2.957 
[ 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 14.8   n/a MPO273310  
diameter diameter 8.810 km 1.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.916 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.033   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160869 (2001 KM39)          Discovered 2001-May-22 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2001 KM39 = 1995 KA4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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