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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1775201062490466 5.0386e-08  
a 2.535167812652159 1.2931e-08 au
q 2.085124553190985 1.2872e-07 au
i 6.724374595381224 4.9752e-06 deg
node 117.1522707504627 3.8724e-05 deg
peri 66.64153814621085 4.237e-05 deg
M 249.832084830646 2.0658e-05 deg
tp 2459451.691724402371
(2021-Aug-25.19172440)		 8.6686e-05 TDB
period 1474.376823189965
4.04		 1.128e-05
3.088e-08		 d
yr
n .2441709570699186 1.8681e-09 deg/d
Q 2.985211072113333 1.5226e-08 au
   Orbit Determination Parameters
   # obs. used (total)      610  
   data-arc span      8396 days (22.99 yr)  
   first obs. used      1997-01-30  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59876  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:07:25  

Additional Information
 Earth MOID = 1.09874 au 
 Jupiter MOID = 1.99929 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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