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JPL Small-Body Database Browser
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379664 (2011 EX68)
Classification: Main-belt Asteroid          SPK-ID: 2379664
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07647049685535962 4.8142e-08  
a 2.657818373523882 2.7071e-08 au
q 2.454573681949207 1.3102e-07 au
i 7.786139714304905 5.9849e-06 deg
node 131.3952981407647 3.8157e-05 deg
peri 275.8260734487487 5.5332e-05 deg
M 174.1162524114367 4.1024e-05 deg
tp 2458235.038792378065
(2018-Apr-26.53879238)
0.00017761 TDB
period 1582.655443862495
4.33
2.418e-05
6.62e-08
d
yr
n .2274658084272686 3.4752e-09 deg/d
Q 2.861063065098557 2.9141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      5224 days (14.30 yr)  
   first obs. used      2006-01-07  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55641  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:30:00  

Additional Information
 Earth MOID = 1.47935 au 
 Jupiter MOID = 2.41116 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457702.5 (2016-Nov-10.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07648353241499037 4.8109e-08  
q 2.454737668887787 1.3093e-07 au
tp 2458237.655692445359
(2018-Apr-29.15569245)
0.00017762 TDB
node 131.4052363638063 3.8159e-05 deg
peri 276.4944332529436 5.5336e-05 deg
i 7.785728115312321 5.9846e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      5224 days (14.30 yr)  
   first obs. used      2006-01-07  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55641  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:30:00  

Additional Information
 Jupiter MOID = 2.41116 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.314518488987059E-15 -6.182679082450375E-15 -7.350695508888614E-14 4.430042172450328E-15 -8.833510680546437E-14 2.579924647693481E-15
q -6.182679082450375E-15 1.714188874413E-14 1.074155120101522E-12 -1.314451912526548E-14 3.880295046760974E-13 -5.91975026169258E-15
tp -7.350695508888614E-14 1.074155120101522E-12 3.154805345652275E-8 -4.848945768739025E-11 7.131420976356197E-9 1.559169198113712E-12
node 4.430042172450328E-15 -1.314451912526548E-14 -4.848945768739025E-11 1.45611894413935E-9 -1.453291590907549E-9 1.375592654763403E-11
peri -8.833510680546437E-14 3.880295046760974E-13 7.131420976356197E-9 -1.453291590907549E-9 3.062036969907361E-9 -1.341258943086037E-11
i 2.579924647693481E-15 -5.91975026169258E-15 1.559169198113712E-12 1.375592654763403E-11 -1.341258943086037E-11 3.581566948266557E-11

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 16.6   n/a MPO423397  
diameter diameter 2.504 km 0.558 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

379664 (2011 EX68)          Discovered 2006-Jan-07 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

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Alternate Designations
 2011 EX68 = 2006 AR47 = 2010 DW67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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