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JPL Small-Body Database Browser
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12657 Bonch-Bruevich (1971 QO1)
Classification: Main-belt Asteroid          SPK-ID: 2012657
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1041429182181005 5.1622e-08  
a 3.021496869142917 1.8823e-08 au
q 2.70682936780352 1.6003e-07 au
i 9.415731326580499 5.7964e-06 deg
node 321.1990847048288 2.7961e-05 deg
peri 37.05401403365146 3.6197e-05 deg
M 20.76903774394642 2.2159e-05 deg
tp 2458489.826020906329
(2019-Jan-06.32602091)
0.00011814 TDB
period 1918.366799893488
5.25
1.7926e-05
4.908e-08
d
yr
n .1876596279814621 1.7536e-09 deg/d
Q 3.336164370482314 2.0783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1725  
   data-arc span      17631 days (48.27 yr)  
   first obs. used      1971-08-30  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46597  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:26:48  

Additional Information
 Earth MOID = 1.70771 au 
 Jupiter MOID = 2.09397 au 
 T_jup = 3.217 
[ 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 12.6   n/a MPO458947  
diameter diameter 8.865 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.270   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12657 Bonch-Bruevich           Discovered 1971 Aug. 30 by T. M. Smirnova at the Crimean Astrophysical Observatory.
Aleksej Mikhajlovich Bonch-Bruevich (b. 1916), a corresponding member of the Russian Academy of Sciences, is renowned for his research in the field of laser radiation interaction with absorbing and transparent environments. He is founder of a new scientific branch on power optics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1971 QO1 = 1971 SC4 = 1982 VV1 = 1984 CE1 = 1998 XA32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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