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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05246061486730531 4.634e-08  
a 3.136198941439074 2.642e-08 au
q 2.971672016624987 1.4266e-07 au
i 4.681809558898793 5.0102e-06 deg
node 99.94064660363934 6.9029e-05 deg
peri 192.8601445394512 9.3023e-05 deg
M 208.0252200738421 6.558e-05 deg
tp 2460056.892499740482
(2023-Apr-22.39249974)
0.00037243 TDB
period 2028.634619878195
5.55
2.5635e-05
7.018e-08
d
yr
n .1774592607621058 2.2424e-09 deg/d
Q 3.300725866253159 2.7806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      10282 days (28.15 yr)  
   first obs. used      1993-01-22  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53076  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:31:03  

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 15.12   n/a MPCxxxxx  

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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