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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1061003726939211 1.1864e-08  
a 2.177331762241836 5.1919e-09 au
q 1.946316050789666 2.5321e-08 au
i 6.383993440301989 5.9392e-07 deg
node 110.2713304633955 5.184e-06 deg
peri 310.6456230281918 9.1473e-06 deg
M 288.5501164655399 7.1471e-06 deg
tp 2459629.407977044453
(2022-Feb-18.90797704)
2.3579e-05 TDB
period 1173.506065906515
3.21
4.1974e-06
1.149e-08
d
yr
n .3067730201478811 1.0973e-09 deg/d
Q 2.408347473694007 5.7428e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2509  
   data-arc span      13664 days (37.41 yr)  
   first obs. used      1984-01-27  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43439  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 01:51:58  

Additional Information
 Earth MOID = .966094 au 
 Jupiter MOID = 2.83933 au 
 T_jup = 3.668 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457213.5 (2015-Jul-10.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .106213838384037 1.1886e-08  
q 1.945471103905169 2.5399e-08 au
tp 2457283.305119198465
(2015-Sep-17.80511920)
2.2099e-05 TDB
node 110.3229060581034 5.1813e-06 deg
peri 310.6834018423954 9.1483e-06 deg
i 6.38569649368843 5.9409e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2509  
   data-arc span      13664 days (37.41 yr)  
   first obs. used      1984-01-27  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43439  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 01:51:58  

Additional Information
 Jupiter MOID = 2.83933 au 
 T_jup = 3.668 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.412754979459168E-16 -2.971159541513757E-16 1.246934907038366E-13 -2.192602687136678E-14 6.214581786204024E-14 -2.404522123463056E-16
q -2.971159541513757E-16 6.451246986044287E-16 -2.715637178013798E-13 4.744281676806119E-14 -1.353021814878039E-13 4.521695293303475E-16
tp 1.246934907038366E-13 -2.715637178013798E-13 4.883791385721048E-10 -2.486534068035186E-12 1.714411578686166E-10 -4.293702738290323E-12
node -2.192602687136678E-14 4.744281676806119E-14 -2.486534068035186E-12 2.684586116570125E-11 -2.573250062495292E-11 6.067495645335141E-13
peri 6.214581786204024E-14 -1.353021814878039E-13 1.714411578686166E-10 -2.573250062495292E-11 8.369059095787771E-11 -2.035170626876019E-12
i -2.404522123463056E-16 4.521695293303475E-16 -4.293702738290323E-12 6.067495645335141E-13 -2.035170626876019E-12 3.529468613678971E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.94   n/a E2021B10  
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 35.6604 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

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