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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899639250607425 6.1315e-08  
a 2.233180686058629 1.2768e-08 au
q 1.80895691756509 1.3754e-07 au
i 6.355448298399906 5.4104e-06 deg
node 284.0802360104021 6.5322e-05 deg
peri 120.0374873760461 6.824e-05 deg
M 249.9643110510059 2.1631e-05 deg
tp 2457973.076353462488
(2017-Aug-07.57635346)
7.5152e-05 JED
period 1218.945312449209
3.34
1.0454e-05
2.862e-08
d
yr
n .2953372857037016 2.5328e-09 deg/d
Q 2.657404454552168 1.5193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      750  
   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      .5156  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:20:37  

Additional Information
 Earth MOID = .826846 au 
 Jupiter MOID = 2.75167 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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