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100186 (1994 BL2)
Classification: Main-belt Asteroid          SPK-ID: 2100186
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1938958231202059 4.4003e-08  
a 2.38946975858502 1.1277e-08 au
q 1.926161552923338 1.0713e-07 au
i 1.768386238989114 4.1961e-06 deg
node 291.5069542432706 0.00014649 deg
peri 12.18895713899846 0.00014687 deg
M 273.9686466669376 1.1741e-05 deg
tp 2459522.907390429545
(2021-Nov-04.40739043)
4.5012e-05 TDB
period 1349.120478266741
3.69
9.5508e-06
2.615e-08
d
yr
n .2668405126149326 1.889e-09 deg/d
Q 2.852777964246702 1.3464e-08 au
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      9560 days (26.17 yr)  
   first obs. used      1994-01-18  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:07:34  

Additional Information
 Earth MOID = .908944 au 
 Jupiter MOID = 2.38231 au 
 T_jup = 3.507 
[ 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 16.36   n/a E2021B55  

100186 (1994 BL2)          Discovered 1994-Jan-19 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1994 BL2 = 2002 ER63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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