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100449 (1996 RJ9)
Classification: Main-belt Asteroid          SPK-ID: 2100449
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1988578943561266 4.3243e-08  
a 2.744090568440794 1.2089e-08 au
q 2.198406496078152 1.1521e-07 au
i 8.166943112284482 4.7485e-06 deg
node 346.9998206097121 2.6692e-05 deg
peri 9.21878295820993 2.8654e-05 deg
M 114.8960030887279 9.9302e-06 deg
tp 2458670.594400353758
(2019-Jul-06.09440035)		 4.5023e-05 TDB
period 1660.336397649349
4.55		 1.0972e-05
3.004e-08		 d
yr
n .2168235307674255 1.4328e-09 deg/d
Q 3.289774640803437 1.4493e-08 au
   Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      12175 days (33.33 yr)  
   first obs. used      1987-09-24  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4805  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:18  

Additional Information
 Earth MOID = 1.19259 au 
 Jupiter MOID = 2.15738 au 
 T_jup = 3.305 
[ 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 15.28   n/a E2021B55  
diameter diameter 6.026 km 0.531 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.043   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

100449 (1996 RJ9)          Discovered 1996-Sep-07 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1996 RJ9 = 2001 SD261 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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