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183971 (2004 EG8)
Classification: Main-belt Asteroid          SPK-ID: 2183971
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06745957518671516 3.9076e-08  
a 2.579060744173981 1.8868e-08 au
q 2.405078401991271 9.69e-08 au
i 22.49879836222249 6.8949e-06 deg
node 356.4328335446953 1.2134e-05 deg
peri 59.73160210261726 0.00010653 deg
M 88.02841116468726 9.8726e-05 deg
tp 2458630.577160457471
(2019-May-27.07716046)
0.00041609 TDB
period 1512.832283047416
4.14
1.6601e-05
4.545e-08
d
yr
n .2379642502570238 2.6113e-09 deg/d
Q 2.753043086356691 2.0141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      6291 days (17.22 yr)  
   first obs. used      2003-01-28  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 04:40:51  

Additional Information
 Earth MOID = 1.45657 au 
 Jupiter MOID = 2.47271 au 
 T_jup = 3.315 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457690.5 (2016-Oct-29.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06639463478176612 3.8478e-08  
q 2.408892498662876 9.5077e-08 au
tp 2457118.843508046179
(2015-Apr-06.34350805)
0.00043069 TDB
node 356.4614968451934 1.2126e-05 deg
peri 60.0727997549542 0.00010854 deg
i 22.50480034526815 6.897e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      6291 days (17.22 yr)  
   first obs. used      2003-01-28  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 04:40:51  

Additional Information
 Jupiter MOID = 2.47271 au 
 T_jup = 3.315 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.480569664381881E-15 -3.599502986395604E-15 -7.536862502121661E-12 -1.119940231205803E-14 -1.891485243632559E-12 1.342843016414622E-14
q -3.599502986395604E-15 9.039570643774305E-15 1.652572210243122E-11 2.7531078831603E-14 4.169345825927983E-12 -2.841190783811379E-14
tp -7.536862502121661E-12 1.652572210243122E-11 1.854968404305989E-7 1.725705523735796E-10 4.647281032316524E-8 -4.361539117969894E-10
node -1.119940231205803E-14 2.7531078831603E-14 1.725705523735796E-10 1.470327418359288E-10 -9.189070924314895E-11 -3.918814096950271E-11
peri -1.891485243632559E-12 4.169345825927983E-12 4.647281032316524E-8 -9.189070924314895E-11 1.178081402844264E-8 -7.33791640036863E-11
i 1.342843016414622E-14 -2.841190783811379E-14 -4.361539117969894E-10 -3.918814096950271E-11 -7.33791640036863E-11 4.756805632141276E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO454266  

183971 (2004 EG8)          Discovered 2004-Mar-13 by NEAT at Palomar
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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