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117555 (2005 EP13)
Classification: Main-belt Asteroid          SPK-ID: 2117555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03944248501209513 5.7995e-08  
a 2.918962151719406 2.2268e-08 au
q 2.803831030799341 1.7025e-07 au
i 3.073475850672974 5.4246e-06 deg
node 118.1854922538314 0.00012 deg
peri 111.8179570831452 0.00015501 deg
M 319.9466464950804 9.906e-05 deg
tp 2459203.164417822817
(2020-Dec-19.66441782)
0.00050113 TDB
period 1821.550108338686
4.99
2.0845e-05
5.707e-08
d
yr
n .1976338714768226 2.2616e-09 deg/d
Q 3.034093272639472 2.3147e-08 au
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      7346 days (20.11 yr)  
   first obs. used      2000-03-11  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5675  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:13:12  

Additional Information
 Earth MOID = 1.79475 au 
 Jupiter MOID = 1.94113 au 
 T_jup = 3.277 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457157.5 (2015-May-15.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03981331816538257 5.9576e-08  
q 2.803681545114848 1.7522e-07 au
tp 2457370.122906074164
(2015-Dec-13.62290607)
0.00048633 TDB
node 118.2006626070972 0.00012001 deg
peri 109.6755625838212 0.00015301 deg
i 3.073304058635899 5.4238e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      7346 days (20.11 yr)  
   first obs. used      2000-03-11  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5675  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:13:12  

Additional Information
 Jupiter MOID = 1.94113 au 
 T_jup = 3.277 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.549245379190515E-15 -1.036147891580567E-14 -2.052519302421048E-11 2.982098810566578E-14 -3.936140337644577E-12 -7.367512210519432E-16
q -1.036147891580567E-14 3.070157223112854E-14 5.935139069154634E-11 -8.935631613307467E-14 1.136866551286842E-11 2.251147911679813E-15
tp -2.052519302421048E-11 5.935139069154634E-11 2.365153049787037E-7 -2.188138530709067E-10 4.623533341825165E-8 9.850770948262232E-12
node 2.982098810566578E-14 -8.935631613307467E-14 -2.188138530709067E-10 1.44016933652313E-8 -1.442293134227604E-8 4.088999002302203E-10
peri -3.936140337644577E-12 1.136866551286842E-11 4.623533341825165E-8 -1.442293134227604E-8 2.341262445820943E-8 -4.064110755075341E-10
i -7.367512210519432E-16 2.251147911679813E-15 9.850770948262232E-12 4.088999002302203E-10 -4.064110755075341E-10 2.941757502293735E-11

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 15.0   n/a MPO432680  
diameter diameter 3.168 km 0.685 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117555 (2005 EP13)          Discovered 2005-Mar-03 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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