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146956 (2002 EE161)
Classification: Main-belt Asteroid          SPK-ID: 2146956
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0953386932241638 4.6285e-08  
a 3.162894478347354 3.5181e-08 au
q 2.861348251975794 1.3586e-07 au
i 11.57163637827203 6.4878e-06 deg
node 237.3775345280349 2.5226e-05 deg
peri 245.0560175898619 4.3807e-05 deg
M 134.9344368856834 3.6864e-05 deg
tp 2458230.402379155475
(2018-Apr-21.90237916)
0.00020794 TDB
period 2054.591473479102
5.63
3.428e-05
9.385e-08
d
yr
n .1752173143162135 2.9234e-09 deg/d
Q 3.464440704718914 3.8535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      396  
   data-arc span      21435 days (58.69 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53041  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:22:17  

Additional Information
 Earth MOID = 1.90126 au 
 Jupiter MOID = 1.82922 au 
 T_jup = 3.166 
[ 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 14.8   n/a MPO475273  
diameter diameter 5.222 km 1.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.085   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146956 (2002 EE161)          Discovered 2002-Mar-09 by NEAT at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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