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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .157089601796799 4.7492e-08  
a 2.57292776686226 1.5196e-08 au
q 2.16874756851394 1.2295e-07 au
i 6.268429747547285 6.679e-06 deg
node 291.6325213693868 4.7273e-05 deg
peri 276.4449898622828 5.2465e-05 deg
M 127.1109082161105 2.4751e-05 deg
tp 2458864.244523485222
(2020-Jan-15.74452349)
0.00010169 TDB
period 1507.439245257744
4.13
1.3354e-05
3.656e-08
d
yr
n .2388155948125436 2.1157e-09 deg/d
Q 2.97710796521058 1.7583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      9183 days (25.14 yr)  
   first obs. used      1996-06-15  
   last obs. used      2021-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55304  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:00:38  

Additional Information
 Earth MOID = 1.17539 au 
 Jupiter MOID = 2.04432 au 
 T_jup = 3.403 
[ 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 15.45   n/a E2021B10  
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

Alternate Designations
 2003 BU81 = 1999 GM52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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