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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1894855670059596 6.2546e-08  
a 2.234117747440395 1.2814e-08 AU
q 1.810784679308575 1.401e-07 AU
i 6.356470489478036 5.4312e-06 deg
node 284.1086870057289 6.5808e-05 deg
peri 120.1529086796914 6.875e-05 deg
M 72.64570394064259 2.0886e-05 deg
tp 2456754.369774060502
(2014-Apr-06.86977406)
6.9705e-05 JED
period 1219.712612470768
3.34
1.0493e-05
2.873e-08
d
yr
n .2951514941464359 2.5392e-09 deg/d
Q 2.657450815572216 1.5241e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      9932 days (27.19 yr)  
   first obs. used      1988-01-18  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51434  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:32:03  

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 14.9 mag n/a MPO337415  

18594 (1998 BJ)          Discovered 1998-Jan-16 by Shimizu, Y., Urata, T. at Nachi-Katsuura
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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