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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1069005860440397 4.311e-08  
a 2.17646144091767 5.5399e-09 au
q 1.943796437381316 9.3955e-08 au
i 6.385518011072973 3.7073e-06 deg
node 110.2758117415335 3.6921e-05 deg
peri 310.694193349998 4.0107e-05 deg
M 167.0387993377985 1.5416e-05 deg
tp 2458456.323539039453
(2018-Dec-03.82353904)
4.994e-05 TDB
period 1172.802526852615
3.21
4.4779e-06
1.226e-08
d
yr
n .3069570466957571 1.172e-09 deg/d
Q 2.409126444454024 6.1322e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2170  
   data-arc span      13240 days (36.25 yr)  
   first obs. used      1984-01-27  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44762  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:06:03  

Additional Information
 Earth MOID = .963912 au 
 Jupiter MOID = 2.8395 au 
 T_jup = 3.669 
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Orbital Elements at Epoch 2456698.5 (2014-Feb-10.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1064690115740862 4.303e-08  
q 1.94501615399557 9.3742e-08 au
tp 2457283.048223047002
(2015-Sep-17.54822305)
5.0035e-05 TDB
node 110.3252097679125 3.6909e-05 deg
peri 310.6281131983893 4.0135e-05 deg
i 6.385873991502987 3.7072e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2170  
   data-arc span      13240 days (36.25 yr)  
   first obs. used      1984-01-27  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44762  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:06:03  

Additional Information
 Jupiter MOID = 2.8395 au 
 T_jup = 3.669 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.851596891801189E-15 -4.028028790988875E-15 -2.2678603456254E-13 -8.342396386245536E-15 -1.002943419364051E-13 -1.5745163816333E-15
q -4.028028790988875E-15 8.787504338219111E-15 4.98439870570522E-13 1.804331932169628E-14 2.162531786448781E-13 3.448454151356537E-15
tp -2.2678603456254E-13 4.98439870570522E-13 2.503479767664121E-9 2.098915162356565E-12 8.040067096315551E-10 -4.098356011461482E-13
node -8.342396386245536E-15 1.804331932169628E-14 2.098915162356565E-12 1.362277171186751E-9 -1.352390061480612E-9 -3.977330806512345E-11
peri -1.002943419364051E-13 2.162531786448781E-13 8.040067096315551E-10 -1.352390061480612E-9 1.610826173664746E-9 3.946220147236487E-11
i -1.5745163816333E-15 3.448454151356537E-15 -4.098356011461482E-13 -3.977330806512345E-11 3.946220147236487E-11 1.374345559315578E-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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