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359290 (2009 HK40)
Classification: Main-belt Asteroid          SPK-ID: 2359290
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .252186027332894 5.1119e-08  
a 2.611890098190838 2.2127e-08 au
q 1.953207910497968 1.3293e-07 au
i 10.71305918897842 8.9596e-06 deg
node 172.4138004457914 2.8213e-05 deg
peri 100.8994384357948 3.4916e-05 deg
M 178.6540330482468 1.5923e-05 deg
tp 2458235.359660644686
(2018-Apr-26.85966064)
6.9717e-05 TDB
period 1541.80970598926
4.22
1.9593e-05
5.364e-08
d
yr
n .2334918496112436 2.9671e-09 deg/d
Q 3.270572285883708 2.7708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      9124 days (24.98 yr)  
   first obs. used      1993-09-15  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53538  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:17:22  

Additional Information
 Earth MOID = .971471 au 
 Jupiter MOID = 1.99086 au 
 T_jup = 3.339 
[ 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 17.3   n/a MPO450333  

359290 (2009 HK40)          Discovered 2009-Apr-20 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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