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173244 (1999 KD)
Classification: Main-belt Asteroid          SPK-ID: 2173244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2666829370398541 6.634e-08  
a 2.332063095280316 1.6899e-08 au
q 1.710141659668708 1.478e-07 au
i 6.015092015719857 7.8675e-06 deg
node 61.24609074479103 4.9288e-05 deg
peri 270.2164014792777 5.4178e-05 deg
M 257.3668527406548 3.1345e-05 deg
tp 2459371.346357268514
(2021-Jun-05.84635727)
0.0001167 TDB
period 1300.795037292485
3.56
1.4139e-05
3.871e-08
d
yr
n .2767538233765983 3.0082e-09 deg/d
Q 2.953984530891924 2.1406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      8597 days (23.54 yr)  
   first obs. used      1996-10-09  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59354  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:25:27  

Additional Information
 Earth MOID = .713002 au 
 Jupiter MOID = 2.44334 au 
 T_jup = 3.515 
[ 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 17.4   n/a MPO469856  
diameter diameter 1.831 km 0.312 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173244 (1999 KD)          Discovered 1999-May-16 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1999 KD = 1996 TG46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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