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(2004 RE84)
Classification: Apollo [NEO, PHA]          SPK-ID: 3251712
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .605917362241827 1.5935e-08  
a 1.67407585031657 2.2675e-09 au
q .6597242269000103 2.6238e-08 au
i 1.9969288075058 7.3184e-06 deg
node 321.9406205344396 0.00018497 deg
peri 131.8394814307599 0.00018621 deg
M 149.4911092608779 4.4196e-06 deg
tp 2458871.970791209415
(2020-Jan-23.47079121)
9.7645e-06 TDB
period 791.1541746487134
2.17
1.6074e-06
4.401e-09
d
yr
n .455031410483104 9.2451e-10 deg/d
Q 2.68842747373313 3.6415e-09 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      5708 days (15.63 yr)  
   first obs. used      2004-09-10  
   last obs. used      2020-04-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48066  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 22:17:58  

Additional Information
 Earth MOID = .0202966 au 
 Jupiter MOID = 2.53626 au 
 T_jup = 4.010 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.9   n/a MPO437948  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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