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100445 (1996 RA4)
Classification: Main-belt Asteroid          SPK-ID: 2100445
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2073326468433292 4.3348e-08  
a 2.167387406602493 7.936e-09 au
q 1.718017238856699 9.589e-08 au
i 5.206552523073316 4.094e-06 deg
node 240.4287849192092 4.598e-05 deg
peri 62.94456117589032 4.7151e-05 deg
M 248.9454172240777 8.2297e-06 deg
tp 2459560.031734026079
(2021-Dec-11.53173403)
2.6981e-05 TDB
period 1165.475759884179
3.19
6.4012e-06
1.753e-08
d
yr
n .308886733118993 1.6965e-09 deg/d
Q 2.616757574348287 9.5814e-09 au
  Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      9603 days (26.29 yr)  
   first obs. used      1993-10-10  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51906  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:06:25  

Additional Information
 Earth MOID = .708537 au 
 Jupiter MOID = 2.62283 au 
 T_jup = 3.658 
[ 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 16.5   n/a MPO449610  

100445 (1996 RA4)          Discovered 1996-Sep-12 by Casulli, V. S. at Colleverde
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1996 RA4 = 2002 JB93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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