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18594 (1998 BJ)
Classification: Main-belt Asteroid          SPK-ID: 2018594
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1894855274832184 7.2874e-08  
a 2.234117755973667 1.493e-08 AU
q 1.810784774523372 1.6638e-07 AU
i 6.356473613902281 6.0686e-06 deg
node 284.1086327358764 7.6991e-05 deg
peri 120.1529565257179 7.9666e-05 deg
M 72.64570357028194 2.1125e-05 deg
tp 2456754.369773905167
(2014-Apr-06.86977391)
7.0404e-05 JED
period 1219.712619458855
3.34
1.2226e-05
3.347e-08
d
yr
n .2951514924554277 2.9585e-09 deg/d
Q 2.657450737423961 1.7759e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      9445 days (25.86 yr)  
   first obs. used      1988-01-18  
   last obs. used      2013-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5254  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:09:36  

Additional Information
 Earth MOID = .829846 AU 
 T_jup = 3.608 
[ 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 14.8 mag n/a MPO279709  

18594 (1998 BJ)          Discovered 1998-Jan-16 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BJ = 1990 UR14 = 2000 RB44 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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