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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .406594951292017 0.00011179  
a 1.632063354512258 0.00029156 AU
q .9684746343788604 9.4415e-06 AU
i .9256164918966964 0.00015696 deg
node 47.47064304026185 0.0011596 deg
peri 204.157142587267 0.00084924 deg
M 48.76948142704903 0.30529 deg
tp 2456897.330913768011
(2014-Aug-27.83091377)
0.61818 JED
period 761.5596876721506
2.09
0.20407
0.0005587
d
yr
n .4727140969086838 0.00012667 deg/d
Q 2.295652074645655 0.0004101 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 = .00152129 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. 2014-Mar-01) 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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