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JPL Small-Body Database Browser
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(2002 EX8)
Classification: Apollo [NEO]          SPK-ID: 3117429
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5482504240916402 6.1217e-08  
a 1.892357699180522 1.6444e-09 au
q .8548717880717205 1.1549e-07 au
i 26.10947301976186 2.0371e-05 deg
node 177.5625395857819 5.8182e-06 deg
peri 66.42849279919862 1.9871e-05 deg
M 187.1160449053836 6.796e-06 deg
tp 2459057.120560432601
(2020-Jul-26.62056043)
1.8426e-05 TDB
period 950.830871874559
2.60
1.2394e-06
3.393e-09
d
yr
n .3786162299192721 4.9352e-10 deg/d
Q 2.929843610289324 2.546e-09 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      4937 days (13.52 yr)  
   first obs. used      2002-03-13  
   last obs. used      2015-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49325  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:15:21  

Additional Information
 Earth MOID = .0649486 au 
 Jupiter MOID = 2.50602 au 
 T_jup = 3.655 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.8   n/a MPO402924  
rotation period rot_per 5.45 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2015) Minor Planet Bull. 42, 172-183.]

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