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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2073836437439407 4.0996e-08  
a 2.167101021005799 7.2249e-09 au
q 1.717679714908402 9.1711e-08 au
i 5.206895803308134 3.6056e-06 deg
node 240.4248370131382 3.7922e-05 deg
peri 62.98738685775574 3.9079e-05 deg
M 309.4584790442989 8.1855e-06 deg
tp 2459560.092341423541
(2021-Dec-11.59234142)
2.6721e-05 TDB
period 1165.244769030472
3.19
5.8272e-06
1.595e-08
d
yr
n .3089479648979964 1.545e-09 deg/d
Q 2.616522327103196 8.7232e-09 au
  Orbit Determination Parameters
   # obs. used (total)      722  
   data-arc span      10106 days (27.67 yr)  
   first obs. used      1993-10-10  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50809  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:00:06  

Additional Information
 Earth MOID = .709678 au 
 Jupiter MOID = 2.6223 au 
 T_jup = 3.659 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.52   n/a MPCxxxxx  

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

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