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JPL Small-Body Database Browser
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325102 (2008 EY5)
Classification: Aten [NEO]          SPK-ID: 2325102
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6267428656526002 1.1519e-07  
a .6262100164727521 3.6539e-09 au
q .2337373562482575 7.321e-08 au
i 5.10965590721915 1.0171e-05 deg
node 245.5002965106668 0.00037334 deg
peri 106.6144928880284 0.0003714 deg
M 29.60974987632551 7.1465e-05 deg
tp 2458985.612880313345
(2020-May-16.11288031)
3.582e-05 TDB
period 180.9999445986793
0.50
1.5842e-06
4.337e-09
d
yr
n 1.988950885030419 1.7408e-08 deg/d
Q 1.018682676697247 5.944e-09 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      4347 days (11.90 yr)  
   first obs. used      2008-03-04  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .38922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-29 04:59:12  

Additional Information
 Earth MOID = .0788291 au 
 Jupiter MOID = 4.42326 au 
 T_jup = 8.848 
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Orbital Elements at Epoch 2457185.5 (2015-Jun-12.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6265099231670022 1.1535e-07  
q .2339632784468602 7.3498e-08 au
tp 2457175.202133045886
(2015-Jun-01.70213305)
2.187e-05 TDB
node 245.760327713389 0.00037466 deg
peri 106.3498609225127 0.00037267 deg
i 5.100953212214393 1.0068e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      4347 days (11.90 yr)  
   first obs. used      2008-03-04  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .38922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-29 04:59:12  

Additional Information
 Jupiter MOID = 4.42326 au 
 T_jup = 8.848 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.330517009030422E-14 -8.476950288825923E-15 -6.41153957470745E-13 -4.161945564344685E-12 4.554887315145974E-12 4.962094531575939E-13
q -8.476950288825923E-15 5.401961284243097E-15 4.251113593418481E-13 2.764610744382224E-12 -3.011730188560294E-12 -3.206246313093685E-13
tp -6.41153957470745E-13 4.251113593418481E-13 4.782806106787233E-10 2.321271792193022E-9 -2.159808263085863E-9 -1.006094901932629E-10
node -4.161945564344685E-12 2.764610744382224E-12 2.321271792193022E-9 1.403723424624479E-7 -1.395709505296024E-7 -2.976225287953038E-9
peri 4.554887315145974E-12 -3.011730188560294E-12 -2.159808263085863E-9 -1.395709505296024E-7 1.388865079572516E-7 2.959309726463137E-9
i 4.962094531575939E-13 -3.206246313093685E-13 -1.006094901932629E-10 -2.976225287953038E-9 2.959309726463137E-9 1.013730281383352E-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 20.1   n/a MPO258248  
diameter diameter 0.361 km 0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
geometric albedo albedo 0.124   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

325102 (2008 EY5)          Discovered 2008-Mar-04 by Siding Spring Survey at Siding Spring
Reference: 20120406/Numbers.arcLast Updated: 2012-04-09

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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