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54631 (2000 SJ115)
Classification: Outer Main-belt Asteroid          SPK-ID: 2054631
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05639072707616165 4.8294e-08  
a 3.970936070245138 3.7721e-08 au
q 3.747012098071058 1.8822e-07 au
i 6.102210658021449 5.1011e-06 deg
node 28.78298103109083 4.2886e-05 deg
peri 126.6350828207081 5.7964e-05 deg
M 45.96193973350057 3.8518e-05 deg
tp 2458631.493838478000
(2019-May-27.99383848)
0.00030952 TDB
period 2890.265705019724
7.91
4.1183e-05
1.128e-07
d
yr
n .1245560224358484 1.7748e-09 deg/d
Q 4.194860042419217 3.9848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1315  
   data-arc span      8883 days (24.32 yr)  
   first obs. used      1996-02-14  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52669  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 22:13:44  

Additional Information
 Earth MOID = 2.76088 au 
 Jupiter MOID = .798532 au 
 T_jup = 3.045 
[ 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 12.7   n/a MPO347891  
diameter diameter 17.071 km 0.328 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.061   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

54631 (2000 SJ115)          Discovered 2000-Sep-24 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 SJ115 = 1999 RY68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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