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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05246061689454055 4.8216e-08  
a 3.136198938391789 2.8174e-08 au
q 2.971672007379752 1.4631e-07 au
i 4.681808396412293 5.1954e-06 deg
node 99.94066317043215 7.1752e-05 deg
peri 192.8601255872162 9.5481e-05 deg
M 208.0252224888865 6.599e-05 deg
tp 2460056.892484883305
(2023-Apr-22.39248488)
0.00037431 TDB
period 2028.634616921513
5.55
2.7336e-05
7.484e-08
d
yr
n .177459261020748 2.3913e-09 deg/d
Q 3.300725869403825 2.9652e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      10223 days (27.99 yr)  
   first obs. used      1993-01-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54683  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:24:21  

Additional Information
 Earth MOID = 1.95374 au 
 Jupiter MOID = 1.80301 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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