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17157 (1999 KP6)
Classification: Main-belt Asteroid          SPK-ID: 2017157
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1211419816163968 3.9178e-08  
a 2.594085129649925 1.1434e-08 au
q 2.279832516562506 1.0207e-07 au
i 15.01154737076314 4.45e-06 deg
node 157.5095717822721 1.4771e-05 deg
peri 138.0825125431452 2.1933e-05 deg
M 313.5678685767978 1.8101e-05 deg
tp 2459197.329814114144
(2020-Dec-13.82981411)
7.726e-05 TDB
period 1526.071082872664
4.18
1.009e-05
2.762e-08
d
yr
n .2358998896187319 1.5597e-09 deg/d
Q 2.908337742737344 1.282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1993  
   data-arc span      13351 days (36.55 yr)  
   first obs. used      1983-07-16  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:57:37  

Additional Information
 Earth MOID = 1.28576 au 
 Jupiter MOID = 2.44116 au 
 T_jup = 3.360 
[ 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 13.0   n/a MPO473995  
diameter diameter 6.421 km 0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.72 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:
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
geometric albedo albedo 0.296   0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17157 (1999 KP6)          Discovered 1999-May-21 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 KP6 = 1983 QK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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