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102151 (1999 RA198)
Classification: Main-belt Asteroid          SPK-ID: 2102151
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961894395451359 3.0509e-08  
a 2.285128171786383 7.8315e-09 au
q 1.836810156474811 6.9209e-08 au
i 5.895437166114533 6.6571e-06 deg
node 235.3537297708394 3.9908e-05 deg
peri 68.31993495636567 4.5164e-05 deg
M 91.06398911007139 2.1968e-05 deg
tp 2458881.340009327238
(2020-Feb-01.84000933)
7.6101e-05 TDB
period 1261.723736957257
3.45
6.4862e-06
1.776e-08
d
yr
n .2853239496533269 1.4668e-09 deg/d
Q 2.733446187097954 9.368e-09 au
  Orbit Determination Parameters
   # obs. used (total)      725  
   data-arc span      10338 days (28.30 yr)  
   first obs. used      1992-09-19  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54611  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:40:35  

Additional Information
 Earth MOID = .829594 au 
 Jupiter MOID = 2.51172 au 
 T_jup = 3.570 
[ 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 16.25   n/a E2021B55  

102151 (1999 RA198)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RA198 = 2002 JH58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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