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52660 (1998 BJ8)
Classification: Main-belt Asteroid          SPK-ID: 2052660
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1691255207545595 4.3193e-08  
a 2.984573007003661 1.5884e-08 au
q 2.479805542964166 1.295e-07 au
i 9.387910039807455 4.9789e-06 deg
node 128.9200982371408 3.345e-05 deg
peri 332.2362553393663 3.8136e-05 deg
M 154.5289385096783 1.6951e-05 deg
tp 2458192.094875776145
(2018-Mar-14.59487578)
8.6969e-05 TDB
period 1883.309673432855
5.16
1.5034e-05
4.116e-08
d
yr
n .191152843888812 1.526e-09 deg/d
Q 3.489340471043157 1.857e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      10517 days (28.79 yr)  
   first obs. used      1991-09-11  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51691  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:16:45  

Additional Information
 Earth MOID = 1.50096 au 
 Jupiter MOID = 1.67199 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456791.5 (2014-May-14.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714771452390755 4.3347e-08  
q 2.468883484614407 1.3037e-07 au
tp 2456311.268782948162
(2013-Jan-18.76878295)
8.3757e-05 TDB
node 128.9763645367377 3.3499e-05 deg
peri 331.7693175062042 3.7984e-05 deg
i 9.386440556398844 4.9785e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      10517 days (28.79 yr)  
   first obs. used      1991-09-11  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51691  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:16:45  

Additional Information
 Jupiter MOID = 1.67199 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.878981185919109E-15 -5.620714367071212E-15 -4.675517715838924E-13 -1.323449037874967E-14 -1.016692987863292E-13 -1.752764158044602E-15
q -5.620714367071212E-15 1.699571375955351E-14 1.392871662219567E-12 4.398390252587609E-14 3.089290586555734E-13 5.31009444262234E-15
tp -4.675517715838924E-13 1.392871662219567E-12 7.015215493922163E-9 6.498273220347512E-12 1.539419562893715E-9 -1.535107060112614E-12
node -1.323449037874967E-14 4.398390252587609E-14 6.498273220347512E-12 1.122154690089452E-9 -1.104447676875029E-9 6.105179243030872E-12
peri -1.016692987863292E-13 3.089290586555734E-13 1.539419562893715E-9 -1.104447676875029E-9 1.442770331744245E-9 -6.435982888621939E-12
i -1.752764158044602E-15 5.31009444262234E-15 -1.535107060112614E-12 6.105179243030872E-12 -6.435982888621939E-12 2.478545364262192E-11

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 14.4   n/a MPO474411  
diameter diameter 7.703 km 0.309 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52660 (1998 BJ8)          Discovered 1998-Jan-25 by Kobayashi, T. at Oizumi
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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