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359304 (2009 HN85)
Classification: Main-belt Asteroid          SPK-ID: 2359304
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02008848415387382 6.337e-08  
a 2.63545564289366 3.1041e-08 au
q 2.582513333973154 1.591e-07 au
i 15.01722860309399 8.3756e-06 deg
node 194.26420034 1.9698e-05 deg
peri 53.97670268389899 0.00018029 deg
M 178.458997120604 0.00018123 deg
tp 2458225.827854147142
(2018-Apr-17.32785415)
0.00078513 TDB
period 1562.722961614305
4.28
2.7609e-05
7.559e-08
d
yr
n .2303671276629334 4.07e-09 deg/d
Q 2.688397951814166 3.1665e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6231 days (17.06 yr)  
   first obs. used      2002-10-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57738  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 23:25:25  

Additional Information
 Earth MOID = 1.5915 au 
 Jupiter MOID = 2.28622 au 
 T_jup = 3.349 
[ 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 16.6   n/a MPO503415  

359304 (2009 HN85)          Discovered 2009-Apr-29 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2009 HN85 = 2006 SV58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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