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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05247928877479418 5.1381e-08  
a 3.136209904857013 3.1056e-08 au
q 2.971623839601652 1.5254e-07 au
i 4.682029719322119 5.3777e-06 deg
node 99.94194748337979 7.6179e-05 deg
peri 192.6954971129251 9.9807e-05 deg
M 172.7149054572365 6.6821e-05 deg
tp 2458027.229794924987
(2017-Sep-30.72979493)
0.00037535 TDB
period 2028.645257335688
5.55
3.0133e-05
8.25e-08
d
yr
n .1774583302320704 2.6359e-09 deg/d
Q 3.300795970112374 3.2686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      436  
   data-arc span      10136 days (27.75 yr)  
   first obs. used      1993-01-22  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54539  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:08:07  

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

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