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216380 (2008 BH40)
Classification: Main-belt Asteroid          SPK-ID: 2216380
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05391861720680589 6.2271e-08  
a 2.923369110772223 2.688e-08 au
q 2.765745090734295 1.9155e-07 au
i 13.15247965521466 5.5847e-06 deg
node 109.2497642040908 2.0046e-05 deg
peri 216.2017733300031 5.0247e-05 deg
M 12.02728761768484 4.4034e-05 deg
tp 2459139.505720792444
(2020-Oct-17.00572079)
0.00022333 TDB
period 1825.676845245922
5.00
2.518e-05
6.894e-08
d
yr
n .1971871423671955 2.7197e-09 deg/d
Q 3.080993130810151 2.8329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      6876 days (18.83 yr)  
   first obs. used      2001-11-11  
   last obs. used      2020-09-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56351  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:34  

Additional Information
 Earth MOID = 1.75961 au 
 Jupiter MOID = 2.14918 au 
 T_jup = 3.238 
[ 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 15.69   n/a E2021B55  
diameter diameter 4.941 km 0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216380 (2008 BH40)          Discovered 2008-Jan-30 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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