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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1214715017157811 2.7885e-08  
a 2.595220435114999 9.1248e-09 au
q 2.279975111578097 7.493e-08 au
i 15.01342390141223 7.2271e-07 deg
node 157.49469887 3.5638e-06 deg
peri 137.9629782731706 5.2771e-06 deg
M .8543231615826118 5.2405e-06 deg
tp 2459196.876072629155
(2020-Dec-13.37607263)
2.2224e-05 TDB
period 1527.073023617153
4.18
8.0537e-06
2.205e-08
d
yr
n .2357451113551033 1.2433e-09 deg/d
Q 2.910465758651901 1.0233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2493  
   data-arc span      13615 days (37.28 yr)  
   first obs. used      1983-07-16  
   last obs. used      2020-10-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45843  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:55:47  

Additional Information
 Earth MOID = 1.28407 au 
 Jupiter MOID = 2.43864 au 
 T_jup = 3.359 
[ 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 13.05   n/a E2021B10  
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. 2020-October); 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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