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18321 Bobrov (1982 UQ10)
Classification: Main-belt Asteroid          SPK-ID: 2018321
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2792739012709183 3.1473e-08  
a 2.702220251236479 1.0613e-08 au
q 1.947560659580386 8.4005e-08 au
i 3.324725649089296 4.5022e-06 deg
node 24.27885402076373 6.5407e-05 deg
peri 61.63723195682707 6.5912e-05 deg
M 182.0181984232918 9.0948e-06 deg
tp 2460002.644557491922
(2023-Feb-27.14455749)
4.3682e-05 TDB
period 1622.48071510072
4.44
9.5584e-06
2.617e-08
d
yr
n .2218824523764229 1.3072e-09 deg/d
Q 3.456879842892571 1.3577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1358  
   data-arc span      13777 days (37.72 yr)  
   first obs. used      1982-10-25  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4605  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:26:28  

Additional Information
 Earth MOID = .966051 au 
 Jupiter MOID = 1.80311 au 
 T_jup = 3.307 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457265.5 (2015-Aug-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2808102417182518 3.1483e-08  
q 1.941743179790971 8.4041e-08 au
tp 2456760.661267447129
(2014-Apr-13.16126745)
3.5701e-05 TDB
node 24.31709712220429 6.5371e-05 deg
peri 61.70007538089637 6.5867e-05 deg
i 3.327163101002839 4.505e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1358  
   data-arc span      13777 days (37.72 yr)  
   first obs. used      1982-10-25  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4605  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:26:28  

Additional Information
 Jupiter MOID = 1.80311 au 
 T_jup = 3.307 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.911812692670289E-16 -2.635127303360072E-15 8.280992042104087E-14 -3.143563641827696E-15 5.495941716857114E-16 -3.968812988308193E-16
q -2.635127303360072E-15 7.06294644120254E-15 -1.818190633823434E-13 6.724738809798563E-15 1.191665113727006E-14 1.311207778132709E-15
tp 8.280992042104087E-14 -1.818190633823434E-13 1.274548672083579E-9 2.049473803515999E-12 2.996239020115341E-10 -1.793715662639602E-12
node -3.143563641827696E-15 6.724738809798563E-15 2.049473803515999E-12 4.273370739814394E-9 -4.265560487814528E-9 -4.140792243835546E-11
peri 5.495941716857114E-16 1.191665113727006E-14 2.996239020115341E-10 -4.265560487814528E-9 4.338472695421093E-9 4.100403814741798E-11
i -3.968812988308193E-16 1.311207778132709E-15 -1.793715662639602E-12 -4.140792243835546E-11 4.100403814741798E-11 2.029544357196637E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.36   n/a MPCxxxxx  
diameter diameter 3.842 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.300   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18321 Bobrov           Discovered 1982 Oct. 25 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Vsevolod Mikhajlovich Bobrov (1922-1979) was an ice hockey champion of the 1956 winter Olympic games, a world champion in 1954 and 1956, a champion of Europe from 1954 to 1956 for ice-hockey and repeated champion of the former U.S.S.R. for football and hockey from 1945 to 1956.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

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Alternate Designations
 1982 UQ10 = 1991 VS1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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