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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6268015203585804 1.1462e-07  
a .6262098999601733 1.1825e-08 au
q .2337005826015421 7.2885e-08 au
i 5.109155941591646 9.3971e-06 deg
node 245.4709489487198 0.0003001 deg
peri 106.6488706559844 0.0002964 deg
M 97.24358750175777 9.3868e-05 deg
tp 2459347.608113783025
(2021-May-13.10811378)
4.5993e-05 TDB
period 180.9998940834317
0.50
5.127e-06
1.404e-08
d
yr
n 1.98895144012658 5.6339e-08 deg/d
Q 1.018719217318804 1.9237e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -5.188215346324868E-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .37555  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 07:19:45  

Additional Information
 Earth MOID = .0786449 au 
 Jupiter MOID = 4.42416 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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