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JPL Small-Body Database Browser
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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
4.994e-05 TDB
period 1172.802526852615
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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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] (  
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] (  

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2025-Aug-04 04:41 < 00:01 Iris 0.0439150000900147 0.0439123875365387 0.0439176126458529 4.88522260727676 4.8852225804804 2460891.694809937 0.346640413672932 131.233349506753 19.8751787357296 7.18200253631698 64584.7506396166 T 25 CATAB v2.0f-lin.ifort 2020-May-20 03:06:15 2020-May-20 03:06

Alternate Designations
 1984 BS = 1991 HE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Jun-04 15:17 UT
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