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58688 (1998 BJ4)
Classification: Main-belt Asteroid          SPK-ID: 2058688
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2775839367018478 6.3594e-08  
a 2.743178510995674 2.7508e-08 AU
q 1.981716220837582 1.7104e-07 AU
i 10.54480736813182 9.4422e-06 deg
node 314.6617779132806 2.5461e-05 deg
peri 140.6883821004678 3.2869e-05 deg
M 280.7081064311299 2.1822e-05 deg
tp 2457366.015518667364
(2015-Dec-09.51551867)
0.00010501 JED
period 1659.50869373501
4.54
2.4961e-05
6.834e-08
d
yr
n .2169316746330253 3.263e-09 deg/d
Q 3.504640801153766 3.5143e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      678  
   data-arc span      6652 days (18.21 yr)  
   first obs. used      1996-08-18  
   last obs. used      2014-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50585  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 14:46:52  

Additional Information
 Earth MOID = 1.01035 AU 
 T_jup = 3.268 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO302382  

58688 (1998 BJ4)          Discovered 1998-Jan-21 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BJ4 = 1996 QL2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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