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123816 (2001 BU73)
Classification: Main-belt Asteroid          SPK-ID: 2123816
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05640321395843353 4.6075e-08  
a 2.736563168167311 2.0922e-08 au
q 2.582212210282401 1.2913e-07 au
i 5.678611370063054 4.8538e-06 deg
node 144.3147468343718 4.5839e-05 deg
peri 256.1916491714773 6.1868e-05 deg
M 178.0123732159508 4.0982e-05 deg
tp 2458182.874679506857
(2018-Mar-05.37467951)
0.00018692 TDB
period 1653.509304212549
4.53
1.8962e-05
5.192e-08
d
yr
n .2177187628051739 2.4968e-09 deg/d
Q 2.890914126052221 2.2102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      7511 days (20.56 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:04:02  

Additional Information
 Earth MOID = 1.5967 au 
 Jupiter MOID = 2.33629 au 
 T_jup = 3.342 
[ 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 15.5   n/a MPO422435  
diameter diameter 4.484 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123816 (2001 BU73)          Discovered 2001-Jan-29 by Uppsala-DLR Asteroid Survey at Kvistaberg
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2001 BU73 = 1999 TZ229 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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