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117678 (2005 EX222)
Classification: Main-belt Asteroid          SPK-ID: 2117678
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09588159803805432 4.8706e-08  
a 2.840181935667041 2.209e-08 au
q 2.567860752956471 1.374e-07 au
i 16.19368691641959 4.955e-06 deg
node 91.98959596491223 1.7621e-05 deg
peri 144.6195713774781 2.8426e-05 deg
M 17.26003025557401 2.3607e-05 deg
tp 2458916.678250688423
(2020-Mar-08.17825069)
0.00011429 TDB
period 1748.306886218955
4.79
2.0396e-05
5.584e-08
d
yr
n .2059135057109843 2.4023e-09 deg/d
Q 3.112503118377611 2.4208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      791  
   data-arc span      7386 days (20.22 yr)  
   first obs. used      2000-01-31  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55749  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:13:57  

Additional Information
 Earth MOID = 1.56901 au 
 Jupiter MOID = 1.98864 au 
 T_jup = 3.245 
[ 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 14.6   n/a MPO475033  
diameter diameter 3.858 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.226   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117678 (2005 EX222)          Discovered 2005-Mar-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 EX222 = 2003 YY57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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