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100520 (1997 BU2)
Classification: Main-belt Asteroid          SPK-ID: 2100520
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1774195765292475 4.9405e-08  
a 2.535598692753129 1.042e-08 au
q 2.085733846436755 1.2736e-07 au
i 6.724354965842036 4.8841e-06 deg
node 117.1520843758842 3.3575e-05 deg
peri 66.58708476778305 3.7272e-05 deg
M 298.7060362133962 1.8867e-05 deg
tp 2459451.592888267555
(2021-Aug-25.09288827)
7.8037e-05 TDB
period 1474.752719387286
4.04
9.0904e-06
2.489e-08
d
yr
n .2441087209180186 1.5047e-09 deg/d
Q 2.985463539069503 1.2268e-08 au
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      8754 days (23.97 yr)  
   first obs. used      1997-01-30  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55282  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:31  

Additional Information
 Earth MOID = 1.09885 au 
 Jupiter MOID = 1.99802 au 
 T_jup = 3.417 
[ 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 15.6   n/a MPO299587  

100520 (1997 BU2)          Discovered 1997-Jan-30 by Kobayashi, T. at Oizumi
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1997 BU2 = 1998 MH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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