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305351 (2008 BW12)
Classification: Main-belt Asteroid          SPK-ID: 2305351
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0195564038946373 7.3758e-08  
a 2.755837867955442 3.6686e-08 au
q 2.701943589541569 2.2609e-07 au
i 4.184803206024792 5.6116e-06 deg
node 257.5317808008076 8.7144e-05 deg
peri 106.4711226451735 0.00017514 deg
M .3923938736257727 0.00014909 deg
tp 2458998.678628068554
(2020-May-29.17862807)
0.00069206 TDB
period 1671.009512105059
4.57
3.3367e-05
9.135e-08
d
yr
n .2154386299970782 4.3019e-09 deg/d
Q 2.809732146369314 3.7403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      7923 days (21.69 yr)  
   first obs. used      1997-10-25  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62717  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:39  

Additional Information
 Earth MOID = 1.70194 au 
 Jupiter MOID = 2.27327 au 
 T_jup = 3.339 
[ 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 16.1   n/a MPO476360  
diameter diameter 4.000 km 1.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305351 (2008 BW12)          Discovered 2008-Jan-18 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2008 BW12 = 2002 XP66 = 2006 SH27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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