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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .20726441372657 4.3344e-08  
a 2.167625167215165 7.9147e-09 au
q 1.718353607753356 9.5887e-08 au
i 5.206598402315189 4.0943e-06 deg
node 240.4372445875953 4.5976e-05 deg
peri 62.90079933527023 4.7148e-05 deg
M 187.2188984720791 8.1926e-06 deg
tp 2459559.959227916264
(2021-Dec-11.45922792)
2.6996e-05 TDB
period 1165.667542739382
3.19
6.3843e-06
1.748e-08
d
yr
n .3088359131575205 1.6915e-09 deg/d
Q 2.616896726676974 9.5551e-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 = .710811 au 
 Jupiter MOID = 2.62308 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

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