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227902 (2007 EV156)
Classification: Main-belt Asteroid          SPK-ID: 2227902
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1296498800389062 5.6389e-08  
a 3.078170249996415 4.1423e-08 au
q 2.67908584634505 1.6919e-07 au
i 22.95976789068463 1.2226e-05 deg
node 32.6252979395522 1.4989e-05 deg
peri 274.9115092562796 4.9817e-05 deg
M 102.5930095444419 4.9752e-05 deg
tp 2458638.349435949554
(2019-Jun-03.84943595)
0.00026796 TDB
period 1972.59251830891
5.40
3.9818e-05
1.09e-07
d
yr
n .1825009456634387 3.6839e-09 deg/d
Q 3.47725465364778 4.6794e-08 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      6813 days (18.65 yr)  
   first obs. used      2002-05-16  
   last obs. used      2021-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61253  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 13:12:27  

Additional Information
 Earth MOID = 1.78515 au 
 Jupiter MOID = 1.94995 au 
 T_jup = 3.095 
[ 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 15.1   n/a MPO450054  
diameter diameter 4.228 km 0.602 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.108   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227902 (2007 EV156)          Discovered 2007-Mar-12 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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