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129276 (2005 RJ8)
Classification: Outer Main-belt Asteroid          SPK-ID: 2129276
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0635820370594542 4.4521e-08  
a 3.213730487217715 3.1251e-08 au
q 3.00939495628034 1.4314e-07 au
i 16.86719697293429 7.1075e-06 deg
node 13.75622795712629 1.8516e-05 deg
peri 65.91788558629113 6.2042e-05 deg
M 137.771389232948 5.9493e-05 deg
tp 2458195.178779749292
(2018-Mar-17.67877975)
0.00034428 TDB
period 2104.323988488327
5.76
3.0694e-05
8.404e-08
d
yr
n .1710763180809489 2.4953e-09 deg/d
Q 3.418066018155089 3.3237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      390  
   data-arc span      7083 days (19.39 yr)  
   first obs. used      2000-12-05  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64091  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:42:41  

Additional Information
 Earth MOID = 2.06437 au 
 Jupiter MOID = 1.80401 au 
 T_jup = 3.120 
[ 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 14.8   n/a MPO385564  
diameter diameter 5.856 km 2.379 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129276 (2005 RJ8)          Discovered 2005-Sep-08 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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