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249387 (2009 BN76)
Classification: Main-belt Asteroid          SPK-ID: 2249387
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105889644532336 3.8953e-08  
a 2.334374981142157 2.0025e-08 au
q 1.842781371217894 8.5336e-08 au
i 23.42490404975957 9.565e-06 deg
node 331.0943711523374 9.7364e-06 deg
peri 276.0747899503248 3.4696e-05 deg
M 238.185525530264 3.7399e-05 deg
tp 2459041.309303565205
(2020-Jul-10.80930357)
0.00013849 TDB
period 1302.729827257923
3.57
1.6763e-05
4.589e-08
d
yr
n .2763427937761687 3.5558e-09 deg/d
Q 2.82596859106642 2.4242e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      7062 days (19.33 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54536  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:44:41  

Additional Information
 Earth MOID = .979808 au 
 Jupiter MOID = 2.62295 au 
 T_jup = 3.431 
[ 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 15.9   n/a MPO427416  
diameter diameter 1.891 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.742 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.259   0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249387 (2009 BN76)          Discovered 2009-Jan-26 by PMO NEO Survey Program at Purple Mountain
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

Alternate Designations
 2009 BN76 = 2002 ED119 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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