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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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .626742898754364 1.1465e-07  
a .626209974623962 1.071e-08 au
q .2337373198992434 7.2908e-08 au
i 5.109657176049199 9.3867e-06 deg
node 245.5003501038462 0.00030019 deg
peri 106.6144445426347 0.00029649 deg
M 29.61006607366485 7.597e-05 deg
tp 2458985.612722828744
(2020-May-16.11272283)
3.7886e-05 TDB
period 180.9999264546979
0.50
4.6433e-06
1.271e-08
d
yr
n 1.988951084408886 5.1023e-08 deg/d
Q 1.018682629348681 1.7422e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -5.179939918392275E-14 1.439E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      158  
   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      .37555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-12 09:00:37  

Additional Information
 Earth MOID = .0788292 au 
 Jupiter MOID = 4.42326 au 
 T_jup = 8.848 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 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

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