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100747 (1998 EO4)
Classification: Main-belt Asteroid          SPK-ID: 2100747
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132529858115049 5.0772e-08  
a 2.150284280169885 1.0874e-08 au
q 1.86530740961195 1.1451e-07 au
i 5.046433462171312 4.4149e-06 deg
node 138.8590703066065 5.5346e-05 deg
peri 113.8431896396436 6.0548e-05 deg
M 303.3901789041432 2.8052e-05 deg
tp 2459181.605453646553
(2020-Nov-28.10545365)
9.064e-05 TDB
period 1151.707637485021
3.15
8.7362e-06
2.392e-08
d
yr
n .3125793285404708 2.371e-09 deg/d
Q 2.43526115072782 1.2315e-08 au
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      9174 days (25.12 yr)  
   first obs. used      1995-04-08  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:04:26  

Additional Information
 Earth MOID = .857631 au 
 Jupiter MOID = 2.60455 au 
 T_jup = 3.689 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457501.5 (2016-Apr-23.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1328913275435899 5.0696e-08  
q 1.864372354669355 1.1435e-07 au
tp 2458029.458006411463
(2017-Oct-02.95800641)
8.4997e-05 TDB
node 138.8848381948753 5.534e-05 deg
peri 113.781347409596 6.053e-05 deg
i 5.046825314148798 4.4158e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      9174 days (25.12 yr)  
   first obs. used      1995-04-08  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:04:26  

Additional Information
 Jupiter MOID = 2.60455 au 
 T_jup = 3.689 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.570100275660446E-15 -5.783223821117194E-15 -2.688644346233966E-12 2.470982314744208E-15 -7.006023758102976E-13 -4.525922593116057E-15
q -5.783223821117194E-15 1.307641917976844E-14 6.259704928123235E-12 -6.320058272801339E-15 1.630346659080506E-12 1.042171796800122E-14
tp -2.688644346233966E-12 6.259704928123235E-12 7.224488125987953E-9 -1.165994281005578E-11 2.098077144463379E-9 8.869826758945402E-12
node 2.470982314744208E-15 -6.320058272801339E-15 -1.165994281005578E-11 3.062548451832225E-9 -3.053586533819631E-9 7.777977145699704E-11
peri -7.006023758102976E-13 1.630346659080506E-12 2.098077144463379E-9 -3.053586533819631E-9 3.663824879827392E-9 -7.502756476304317E-11
i -4.525922593116057E-15 1.042171796800122E-14 8.869826758945402E-12 7.777977145699704E-11 -7.502756476304317E-11 1.949896710787969E-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 17.0   n/a MPO453461  

100747 (1998 EO4)          Discovered 1998-Mar-03 by Teide at Teide
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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