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90259 (2003 BU81)
Classification: Main-belt Asteroid          SPK-ID: 2090259
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1558645051264615 4.8868e-08  
a 2.57281083203057 1.5162e-08 au
q 2.171800944912125 1.267e-07 au
i 6.272813296020278 6.7575e-06 deg
node 291.6573314792081 4.8001e-05 deg
peri 276.4418176941296 5.354e-05 deg
M 32.65246951782637 2.5995e-05 deg
tp 2458863.782615288253
(2020-Jan-15.28261529)
0.0001083 TDB
period 1507.336480916356
4.13
1.3325e-05
3.648e-08
d
yr
n .2388318763313848 2.1112e-09 deg/d
Q 2.973820719149014 1.7525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      686  
   data-arc span      8768 days (24.01 yr)  
   first obs. used      1996-06-15  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55784  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:35:28  

Additional Information
 Earth MOID = 1.17779 au 
 Jupiter MOID = 2.04966 au 
 T_jup = 3.403 
[ 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 15.4   n/a MPO432441  
diameter diameter 4.416 km 1.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90259 (2003 BU81)          Discovered 2003-Jan-31 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2003 BU81 = 1999 GM52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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