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468727 (2010 JE87)
Classification: Aten [NEO, PHA]          SPK-ID: 2468727
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .436883520170567 1.3619e-07  
a .9043602699561707 5.6128e-09 au
q .5092601717153146 1.2041e-07 au
i 16.92222491332187 1.7511e-05 deg
node 120.5058148747481 3.6699e-05 deg
peri 242.319043358384 2.8056e-05 deg
M 29.42699872321299 1.8757e-05 deg
tp 2459174.822418949065
(2020-Nov-21.32241895)
1.6272e-05 TDB
period 314.1308859012075
0.86
2.9244e-06
8.007e-09
d
yr
n 1.146019115462649 1.0669e-08 deg/d
Q 1.299460368197027 8.0649e-09 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      3950 days (10.81 yr)  
   first obs. used      2010-05-10  
   last obs. used      2021-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51546  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-04 05:59:01  

Additional Information
 Earth MOID = .0352242 au 
 Jupiter MOID = 4.19398 au 
 T_jup = 6.471 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458113.5 (2017-Dec-26.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4369142063483678 1.3617e-07  
q .5092720878612486 1.204e-07 au
tp 2458232.385109895933
(2018-Apr-23.88510990)
1.5184e-05 TDB
node 120.5167071408029 3.6704e-05 deg
peri 242.3274059056131 2.807e-05 deg
i 16.92032339812616 1.751e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      3950 days (10.81 yr)  
   first obs. used      2010-05-10  
   last obs. used      2021-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51546  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-04 05:59:01  

Additional Information
 Jupiter MOID = 4.19398 au 
 T_jup = 6.471 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.854239869020528E-14 -1.639317194374299E-14 1.598160106373994E-13 -4.042369456622712E-13 -1.936232580179889E-13 9.988625804374931E-13
q -1.639317194374299E-14 1.44954266714206E-14 -1.52406519995156E-13 3.402942756589666E-13 1.843337974997257E-13 -8.912228092931956E-13
tp 1.598160106373994E-13 -1.52406519995156E-13 2.305617294005023E-10 4.736743776492991E-10 -3.234243520902805E-10 1.195067600343506E-10
node -4.042369456622712E-13 3.402942756589666E-13 4.736743776492991E-10 1.347180971341715E-9 -9.995364011612277E-10 3.779068796006275E-10
peri -1.936232580179889E-13 1.843337974997257E-13 -3.234243520902805E-10 -9.995364011612277E-10 7.879378620232867E-10 -3.364104220696162E-10
i 9.988625804374931E-13 -8.912228092931956E-13 1.195067600343506E-10 3.779068796006275E-10 -3.364104220696162E-10 3.06608659721194E-10

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 20.8   n/a E2021D10  
diameter diameter 0.308 km 0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
geometric albedo albedo 0.108   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

468727 (2010 JE87)          Discovered 2010-May-10 by WISE at WISE
Reference: Last Updated: 2016-06-21

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