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469125 (2015 EG2)
Classification: Main-belt Asteroid          SPK-ID: 2469125
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0659019525191315 5.7658e-08  
a 2.773935812770493 3.4993e-08 au
q 2.591128026546174 1.5853e-07 au
i 6.830306231187429 5.2209e-06 deg
node 132.8364335436485 4.7108e-05 deg
peri 220.7473376301143 5.716e-05 deg
M 217.0684208076343 3.3391e-05 deg
tp 2459670.490630723422
(2022-Mar-31.99063072)
0.00015953 TDB
period 1687.497111718155
4.62
3.1932e-05
8.743e-08
d
yr
n .213333698469836 4.0368e-09 deg/d
Q 2.956743598994813 3.7299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      4229 days (11.58 yr)  
   first obs. used      2008-09-24  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59465  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 04:45:46  

Additional Information
 Earth MOID = 1.58911 au 
 Jupiter MOID = 2.36421 au 
 T_jup = 3.323 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO437767  
rotation period rot_per 3.30 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

469125 (2015 EG2)          Discovered 2008-Sep-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-06-21

Alternate Designations
 2015 EG2 = 2013 WY6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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