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JPL Small-Body Database Browser
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74427 (1999 BU2)
Classification: Inner Main-belt Asteroid          SPK-ID: 2074427
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04714443610805858 4.6353e-08  
a 1.908680905608326 7.4392e-09 au
q 1.818697220603203 8.9498e-08 au
i 23.98511217142953 5.4911e-06 deg
node 121.0321752547382 1.3477e-05 deg
peri 21.39873284566616 6.9286e-05 deg
M 240.3668931794721 6.5348e-05 deg
tp 2458920.571717822587
(2020-Mar-12.07171782)		 0.00017462 TDB
period 963.1599603025588
2.64		 5.631e-06
1.542e-08		 d
yr
n .3737696902256119 2.1852e-09 deg/d
Q 1.998664590613449 7.7899e-09 au
   Orbit Determination Parameters
   # obs. used (total)      564  
   data-arc span      7650 days (20.94 yr)  
   first obs. used      1998-12-17  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59378  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:47:05  

Additional Information
 Earth MOID = .839196 au 
 Jupiter MOID = 3.07189 au 
 T_jup = 3.832 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO319937  

74427 (1999 BU2)          Discovered 1999-Jan-18 by Kobayashi, T. at Oizumi
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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