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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4066403376059309 0.0001122  
a 1.631924064603035 0.00028959 au
q .9683179120256137 1.1283e-05 au
i .9255787688391206 0.00015599 deg
node 47.47003579162804 0.001213 deg
peri 204.1346175128919 0.00089734 deg
M 237.9116764274893 0.35587 deg
tp 2457658.737897067704
(2016-Sep-27.23789707)
0.82145 JED
period 761.462195761573
2.08
0.20268
0.0005549
d
yr
n .4727746196775372 0.00012584 deg/d
Q 2.295530217180456 0.00040734 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      .45234  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 09:21:13  

Additional Information
 Earth MOID = .00170917 au 
 Jupiter MOID = 2.75111 au 
 T_jup = 4.212 
[ 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 LCDB (Rev. 2015-December); Warner et al., 2009 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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