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305697 (2009 BR149)
Classification: Main-belt Asteroid          SPK-ID: 2305697
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1723307443879363 5.8684e-08  
a 2.577157100917209 2.3395e-08 au
q 2.133033699311491 1.5643e-07 au
i 9.413398195306851 6.1849e-06 deg
node 157.0368735283843 3.2656e-05 deg
peri 183.7649132361102 3.853e-05 deg
M 340.3833191205527 1.7847e-05 deg
tp 2458682.844158077649
(2019-Jul-18.34415808)
7.4422e-05 TDB
period 1511.157626008595
4.14
2.0577e-05
5.634e-08
d
yr
n .2382279610042165 3.2439e-09 deg/d
Q 3.021280502522927 2.7427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      330  
   data-arc span      9206 days (25.20 yr)  
   first obs. used      1994-08-10  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58743  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:40:25  

Additional Information
 Earth MOID = 1.12365 au 
 Jupiter MOID = 2.37717 au 
 T_jup = 3.387 
[ 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 16.4   n/a MPO450229  
diameter diameter 3.572 km 0.549 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305697 (2009 BR149)          Discovered 2009-Jan-31 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 BR149 = 1994 PT37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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