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18813 (1999 KH15)
Classification: Main-belt Asteroid          SPK-ID: 2018813
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342308157527897 3.9007e-08  
a 2.592743724239889 1.4109e-08 au
q 2.244717619097243 1.0559e-07 au
i 12.96902909621896 4.5696e-06 deg
node 212.6376334477472 1.6605e-05 deg
peri 33.89392496469814 2.4035e-05 deg
M 304.4819248102781 1.9288e-05 deg
tp 2458835.663391232262
(2019-Dec-18.16339123)
8.2537e-05 TDB
period 1524.887535353306
4.17
1.2447e-05
3.408e-08
d
yr
n .2360829842553538 1.9271e-09 deg/d
Q 2.940769829382535 1.6003e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1714  
   data-arc span      15423 days (42.23 yr)  
   first obs. used      1977-02-17  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46717  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:38:18  

Additional Information
 Earth MOID = 1.24404 au 
 Jupiter MOID = 2.08268 au 
 T_jup = 3.370 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1   n/a MPO474014  
diameter diameter 7.596 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.232   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18813 (1999 KH15)          Discovered 1999-May-20 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 KH15 = 1977 DJ = 1998 FS74 = 2000 RX49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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