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344821 (2004 ER6)
Classification: Main-belt Asteroid          SPK-ID: 2344821
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06305250438154311 4.6204e-08  
a 2.332862800504261 1.5096e-08 au
q 2.185769958553927 1.1213e-07 au
i 6.510611787230641 4.7712e-06 deg
node 351.611196354365 4.8439e-05 deg
peri 182.9635440085781 6.7294e-05 deg
M 252.7148899256229 4.8654e-05 deg
tp 2459588.354803256160
(2022-Jan-08.85480326)		 0.00017774 TDB
period 1301.464192705013
3.56		 1.2632e-05
3.458e-08		 d
yr
n .2766115287826414 2.6849e-09 deg/d
Q 2.479955642454595 1.6048e-08 au
   Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      6164 days (16.88 yr)  
   first obs. used      2004-02-26  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 16:02:42  

Additional Information
 Earth MOID = 1.18989 au 
 Jupiter MOID = 2.48365 au 
 T_jup = 3.558 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457830.5 (2017-Mar-18.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06218571137121418 4.6377e-08  
q 2.18818601511815 1.1243e-07 au
tp 2458287.718961950336
(2018-Jun-18.21896195)		 0.00017394 TDB
node 351.6844041435436 4.8424e-05 deg
peri 183.1521538415825 6.7675e-05 deg
i 6.511110921842008 4.7732e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      6164 days (16.88 yr)  
   first obs. used      2004-02-26  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 16:02:42  

Additional Information
 Jupiter MOID = 2.48365 au 
 T_jup = 3.558 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.150827231292685E-15 -5.174801123813383E-15 1.249021971361418E-12 -3.34110462976256E-15 4.146487022299964E-13 8.051239167633982E-16
q -5.174801123813383E-15 1.263939179372536E-14 -1.830569487711007E-12 9.413842645572664E-15 -6.965017923561074E-13 -1.118698722266198E-15
tp 1.249021971361418E-12 -1.830569487711007E-12 3.02542513541149E-8 3.0871870796223E-11 8.249433232540394E-9 1.139722135897767E-11
node -3.34110462976256E-15 9.413842645572664E-15 3.0871870796223E-11 2.344906498071871E-9 -2.320767756205569E-9 6.564746353786892E-11
peri 4.146487022299964E-13 -6.965017923561074E-13 8.249433232540394E-9 -2.320767756205569E-9 4.579849399061451E-9 -6.214527187532589E-11
i 8.051239167633982E-16 -1.118698722266198E-15 1.139722135897767E-11 6.564746353786892E-11 -6.214527187532589E-11 2.278368257167555E-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 17.2   n/a MPO437461  

344821 (2004 ER6)          Discovered 2004-Mar-12 by NEAT at Palomar
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

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