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9008 Bohsternberk (1984 BS)
Classification: Main-belt Asteroid          SPK-ID: 2009008
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1069005844845164 4.3081e-08  
a 2.176461440605755 5.294e-09 au
q 1.943796440496987 9.3856e-08 au
i 6.385520137360949 3.3922e-06 deg
node 110.275819784277 3.6412e-05 deg
peri 310.6941871358131 3.8837e-05 deg
M 167.0387980256572 1.4188e-05 deg
tp 2458456.323543431108
(2018-Dec-03.82354343)
4.5647e-05 TDB
period 1172.802526600498
3.21
4.2791e-06
1.172e-08
d
yr
n .3069570467617435 1.12e-09 deg/d
Q 2.409126440714522 5.86e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2407  
   data-arc span      13338 days (36.52 yr)  
   first obs. used      1984-01-27  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43148  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:03:48  

Additional Information
 Earth MOID = .963912 au 
 Jupiter MOID = 2.8395 au 
 T_jup = 3.669 
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Orbital Elements at Epoch 2457073.5 (2015-Feb-20.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062924424616943 4.2991e-08  
q 1.945484695416235 9.3592e-08 au
tp 2457283.237161737711
(2015-Sep-17.73716174)
4.5114e-05 TDB
node 110.3248129831853 3.6401e-05 deg
peri 310.6579969532881 3.8867e-05 deg
i 6.385732042723733 3.3916e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2407  
   data-arc span      13338 days (36.52 yr)  
   first obs. used      1984-01-27  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43148  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:03:48  

Additional Information
 Jupiter MOID = 2.8395 au 
 T_jup = 3.669 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.848202820678449E-15 -4.018399485276243E-15 -2.461590419515175E-13 -3.082373238337944E-15 -1.126983271701755E-13 3.405214645028723E-17
q -4.018399485276243E-15 8.759472549985894E-15 5.724143440449979E-13 6.76479696416048E-15 2.549352544030193E-13 -4.793208155174503E-17
tp -2.461590419515175E-13 5.724143440449979E-13 2.035261742248942E-9 -9.996679604603123E-13 6.313531715908271E-10 -7.59439144929809E-13
node -3.082373238337944E-15 6.76479696416048E-15 -9.996679604603123E-13 1.325027322328755E-9 -1.316648753949551E-9 -4.795172568355649E-11
peri -1.126983271701755E-13 2.549352544030193E-13 6.313531715908271E-10 -1.316648753949551E-9 1.510659717130894E-9 4.743001346047277E-11
i 3.405214645028723E-17 -4.793208155174503E-17 -7.59439144929809E-13 -4.795172568355649E-11 4.743001346047277E-11 1.150263600592078E-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 13.9   n/a MPO452297  
diameter diameter 4.512 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 72.502 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.287   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9008 Bohsternberk (1984 BS)          Discovered 1984-Jan-27 by Mrkos, A. at Klet
Reference: 19980808/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1984 BS = 1991 HE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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