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(2001 EC16)
Classification: Apollo [NEO]          SPK-ID: 3071762
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3639857264231107 3.8815e-08  
a 1.345404999863643 3.7775e-09 au
q .8556967836549897 5.074e-08 au
i 4.712192293970282 7.2177e-06 deg
node 175.5292958415187 1.234e-05 deg
peri 70.49276088769957 1.8033e-05 deg
M 75.83637480383041 2.466e-05 deg
tp 2458880.424875294429
(2020-Jan-31.92487529)
3.854e-05 TDB
period 570.0041043077676
1.56
2.4006e-06
6.572e-09
d
yr
n .6315743996917289 2.6599e-09 deg/d
Q 1.835113216072296 5.1524e-09 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   # delay obs. used      4  
   # Doppler obs. used      6  
   data-arc span      5346 days (14.64 yr)  
   first obs. used      2001-01-28  
   last obs. used      2015-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5935  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:16:30  

Additional Information
 Earth MOID = .0115219 au 
 Jupiter MOID = 3.19833 au 
 T_jup = 4.812 
[ 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 22.3   n/a MPO48015  
rotation period rot_per 200. h n/a LCDB (Rev. 2019-August); 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:
[NRAO press release. (2001) http://www.nrao.edu/pr/2001/gbtfirstsci/]

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