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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


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

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