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118252 (1998 BW33)
Classification: Main-belt Asteroid          SPK-ID: 2118252
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1902087014701145 3.8643e-08  
a 2.658204304260005 1.298e-08 au
q 2.15259071530444 1.0103e-07 au
i 13.45014402036378 5.0746e-06 deg
node 352.78408002817 2.1891e-05 deg
peri 141.6788453689533 2.8097e-05 deg
M 65.02364987194457 1.6987e-05 deg
tp 2458714.576530640808
(2019-Aug-19.07653064)
7.3795e-05 TDB
period 1583.000172583684
4.33
1.1595e-05
3.175e-08
d
yr
n .2274162733743915 1.6657e-09 deg/d
Q 3.16381789321557 1.5449e-08 au
  Orbit Determination Parameters
   # obs. used (total)      699  
   data-arc span      8172 days (22.37 yr)  
   first obs. used      1998-01-31  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55213  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:51:32  

Additional Information
 Earth MOID = 1.18119 au 
 Jupiter MOID = 1.8951 au 
 T_jup = 3.322 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO502793  

118252 (1998 BW33)          Discovered 1998-Jan-31 by Kobayashi, T. at Oizumi
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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