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(2008 HJ)
Classification: Apollo [NEO]          SPK-ID: 3409625
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4066037805009542 9.2893e-05  
a 1.632139274304177 0.0002427 AU
q .9685052750680148 7.5981e-06 AU
i .9256643553401639 0.00012946 deg
node 47.4694931448094 0.00093912 deg
peri 204.1574747244461 0.00073478 deg
M 314.1442748459149 0.23229 deg
tp 2456897.511968002934
(2014-Aug-28.01196800)
0.51307 JED
period 761.6128272686377
2.09
0.16988
0.0004651
d
yr
n .4726811144857727 0.00010543 deg/d
Q 2.295773273540339 0.00034139 AU
  Orbit Determination Parameters
   # obs. used (total)      78  
   data-arc span      6 days  
   first obs. used      2008-04-24  
   last obs. used      2008-04-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      6  
   fit RMS      .52891  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 10:52:31  

Additional Information
 Earth MOID = .00165232 AU 
 T_jup = 4.211 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.8 mag n/a MPO139312  
rotation period rot_per 0.01185 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Incomplete or inconclusive result.
Published Reference List:
[Miles, R. (2008) CBET 1382.]

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