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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1891951610256148 7.2887e-08  
a 2.233469022172651 1.4809e-08 AU
q 1.810907490876974 1.6626e-07 AU
i 6.357557508724796 6.0694e-06 deg
node 284.1106140749325 7.6974e-05 deg
peri 120.1232076234016 7.9657e-05 deg
M 13.64960269638064 2.0869e-05 deg
tp 2456754.274050937743
(2014-Apr-06.77405094)
7.0461e-05 JED
period 1219.181395428113
3.34
1.2126e-05
3.32e-08
d
yr
n .2952800964237048 2.9369e-09 deg/d
Q 2.656030553468328 1.7611e-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 = .829124 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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