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68267 (2001 EA16)
Classification: Apollo [NEO]          SPK-ID: 2068267
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 104 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4274470660328586 6.0878e-08  
a 1.509675042091005 2.9541e-09 au
q .8643688746861725 9.2359e-08 au
i 38.8235549723459 1.9319e-05 deg
node 8.016425396831089 5.7163e-06 deg
peri 317.4005545194228 9.9622e-06 deg
M 33.14515275936593 6.0939e-06 deg
tp 2458938.120604175743
(2020-Mar-29.62060418)
1.1398e-05 TDB
period 677.5223713635427
1.85
1.9887e-06
5.445e-09
d
yr
n .5313477683039227 1.5596e-09 deg/d
Q 2.154981209495837 4.2168e-09 au
  Orbit Determination Parameters
   # obs. used (total)      373  
   # delay obs. used      3  
   # Doppler obs. used      1  
   data-arc span      5701 days (15.61 yr)  
   first obs. used      2001-03-04  
   last obs. used      2016-10-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49546  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:28:48  

Additional Information
 Earth MOID = .0581442 au 
 Jupiter MOID = 3.4538 au 
 T_jup = 4.205 
[ 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 16.8   n/a MPO390186  
diameter diameter 0.875 km 0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 3.5 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Vaduvescu, O.; Aznar Macias, A.; Tudor, V.; Predatu, M.; et al. (2017) Earth, Moon, and Planets 120, 41-100.]
geometric albedo albedo 0.401   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

68267 (2001 EA16)          Discovered 2001-Mar-04 by NEAT at Haleakala
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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