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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09539201202975184 4.8949e-08  
a 2.838907797599468 2.3171e-08 au
q 2.568098670819503 1.38e-07 au
i 16.19450946080569 4.9793e-06 deg
node 91.98839429356266 1.8072e-05 deg
peri 144.5318414680739 2.9437e-05 deg
M 294.9212810725548 2.4218e-05 deg
tp 2458916.336161544599
(2020-Mar-07.83616154)
0.00011893 TDB
period 1747.130552505472
4.78
2.139e-05
5.856e-08
d
yr
n .2060521461797701 2.5227e-09 deg/d
Q 3.109716924379433 2.5381e-08 au
  Orbit Determination Parameters
   # obs. used (total)      767  
   data-arc span      7023 days (19.23 yr)  
   first obs. used      2000-01-31  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5504  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 02:56:10  

Additional Information
 Earth MOID = 1.56908 au 
 Jupiter MOID = 1.99095 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 14.5   n/a MPO432680  
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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