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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2523029000694227 5.1079e-08  
a 2.611210627587754 2.2037e-08 au
q 1.952394613555267 1.3275e-07 au
i 10.71414278713705 8.96e-06 deg
node 172.4309570772687 2.8211e-05 deg
peri 100.8134299770418 3.4916e-05 deg
M 85.33193517704053 1.6066e-05 deg
tp 2458235.182583361705
(2018-Apr-26.68258336)
6.9656e-05 TDB
period 1541.208103589
4.22
1.951e-05
5.342e-08
d
yr
n .2335829919150248 2.9569e-09 deg/d
Q 3.270026641620242 2.7597e-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 = .97021 au 
 Jupiter MOID = 1.99018 au 
 T_jup = 3.340 
[ 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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