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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05246061536789422 4.6423e-08  
a 3.136198941831163 2.6498e-08 au
q 2.971672015426562 1.4282e-07 au
i 4.68180962897209 5.0224e-06 deg
node 99.94064583323623 6.9137e-05 deg
peri 192.8601448810697 9.3123e-05 deg
M 208.0252203988939 6.5599e-05 deg
tp 2460056.892498069384
(2023-Apr-22.39249807)
0.00037252 TDB
period 2028.634620258626
5.55
2.571e-05
7.039e-08
d
yr
n .1774592607288267 2.249e-09 deg/d
Q 3.300725868235765 2.7888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      10276 days (28.13 yr)  
   first obs. used      1993-01-22  
   last obs. used      2021-03-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53273  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:30:32  

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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