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213989 (2004 BU17)
Classification: Main-belt Asteroid          SPK-ID: 2213989
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06738833580353662 3.5057e-08  
a 2.611243701044438 1.9966e-08 au
q 2.435276333653585 9.7503e-08 au
i 12.60162127887343 3.8986e-06 deg
node 49.74408267537444 2.1424e-05 deg
peri 190.8770334070491 4.6794e-05 deg
M 248.5847456455186 4.4647e-05 deg
tp 2459677.492653520586
(2022-Apr-07.99265352)
0.00019406 TDB
period 1541.237384973075
4.22
1.7677e-05
4.84e-08
d
yr
n .2335785541604216 2.679e-09 deg/d
Q 2.78721106843529 2.1312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      8155 days (22.33 yr)  
   first obs. used      1998-12-19  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50162  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:39:47  

Additional Information
 Earth MOID = 1.42305 au 
 Jupiter MOID = 2.2052 au 
 T_jup = 3.372 
[ 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 16.12   n/a MPCxxxxx  
diameter diameter 4.043 km 0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213989 (2004 BU17)          Discovered 2004-Jan-18 by CSS at Catalina
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

Alternate Designations
 2004 BU17 = 2006 SK123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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