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70239 (1999 RA71)
Classification: Main-belt Asteroid          SPK-ID: 2070239
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1751082766940809 4.5253e-08  
a 2.531145724100196 8.6181e-09 au
q 2.087921158291419 1.158e-07 au
i .7484196059392891 5.7784e-06 deg
node 322.567502245963 0.00024635 deg
peri 56.28845122553683 0.00024686 deg
M 29.76157725523098 1.5706e-05 deg
tp 2458878.901674761309
(2020-Jan-30.40167476)
6.403e-05 TDB
period 1470.86952786532
4.03
7.5121e-06
2.057e-08
d
yr
n .2447531838683678 1.25e-09 deg/d
Q 2.974370289908972 1.0127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      901  
   data-arc span      8924 days (24.43 yr)  
   first obs. used      1995-08-19  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54615  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:06:52  

Additional Information
 Earth MOID = 1.09015 au 
 Jupiter MOID = 2.48932 au 
 T_jup = 3.429 
[ show covariance matrix ]

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 15.8   n/a MPO493358  

70239 (1999 RA71)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RA71 = 1995 SM49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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