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100087 (1993 BW9)
Classification: Main-belt Asteroid          SPK-ID: 2100087
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05247928072172219 5.2007e-08  
a 3.136209898030823 3.1775e-08 au
q 2.971623858389819 1.537e-07 au
i 4.682029725507796 5.4025e-06 deg
node 99.94194975359075 7.7488e-05 deg
peri 192.6955049114368 0.00010124 deg
M 172.7148970808346 6.7262e-05 deg
tp 2458027.229845304655
(2017-Sep-30.72984530)
0.00037822 TDB
period 2028.645250712446
5.55
3.083e-05
8.441e-08
d
yr
n .177458330811447 2.6969e-09 deg/d
Q 3.300795937671826 3.3443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      9867 days (27.01 yr)  
   first obs. used      1993-01-22  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54573  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:00:29  

Additional Information
 Earth MOID = 1.95564 au 
 Jupiter MOID = 1.80363 au 
 T_jup = 3.205 
[ 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 15.1   n/a MPO333616  

100087 (1993 BW9)          Discovered 1993-Jan-22 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1993 BW9 = 2001 QK208 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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