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117703 (2005 EK300)
Classification: Main-belt Asteroid          SPK-ID: 2117703
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03381654127642347 5.584e-08  
a 2.843571204808077 2.483e-08 au
q 2.747411461788236 1.6e-07 au
i 1.279020626670505 8.1513e-06 deg
node 210.2708485945071 0.00020868 deg
peri 236.9605604125054 0.00023914 deg
M 136.8917966985972 0.00011739 deg
tp 2458334.507234880470
(2018-Aug-04.00723488)
0.00056776 TDB
period 1751.437275463035
4.80
2.294e-05
6.281e-08
d
yr
n .2055454711644328 2.6922e-09 deg/d
Q 2.939730947827919 2.5669e-08 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      7920 days (21.68 yr)  
   first obs. used      1998-10-18  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59078  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:16:47  

Additional Information
 Earth MOID = 1.76394 au 
 Jupiter MOID = 2.12392 au 
 T_jup = 3.307 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457725.5 (2016-Dec-03.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0345272045529418 5.527e-08  
q 2.746166136367221 1.5839e-07 au
tp 2458339.326532847119
(2018-Aug-08.82653285)
0.00055976 TDB
node 210.2807063563149 0.00020871 deg
peri 238.0032521062957 0.00023836 deg
i 1.278657399210585 8.1513e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      7920 days (21.68 yr)  
   first obs. used      1998-10-18  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59078  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:16:47  

Additional Information
 Jupiter MOID = 2.12392 au 
 T_jup = 3.307 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.054816793957486E-15 -8.653149020310373E-15 -1.330482654904131E-11 -5.948064552072199E-15 -2.833201077151775E-12 -9.221131444764168E-16
q -8.653149020310373E-15 2.508680597808556E-14 4.284077092182958E-11 1.90040084297789E-14 9.040561369761467E-12 2.704742910843167E-15
tp -1.330482654904131E-11 4.284077092182958E-11 3.13336078906611E-7 8.211587676527374E-11 6.44457200440358E-8 -3.941707280766098E-12
node -5.948064552072199E-15 1.90040084297789E-14 8.211587676527374E-11 4.356070437581267E-8 -4.353242425619899E-8 1.037390258583965E-11
peri -2.833201077151775E-12 9.040561369761467E-12 6.44457200440358E-8 -4.353242425619899E-8 5.681617954455339E-8 -1.114771438109083E-11
i -9.221131444764168E-16 2.704742910843167E-15 -3.941707280766098E-12 1.037390258583965E-11 -1.114771438109083E-11 6.644358889254617E-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 16.5   n/a MPO426743  

117703 (2005 EK300)          Discovered 2005-Mar-11 by Buie, M. W. at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 EK300 = 2003 WF42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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