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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1069005835858687 4.3025e-08  
a 2.17646144045394 5.2867e-09 au
q 1.943796442317274 9.3744e-08 au
i 6.385520187673332 3.3903e-06 deg
node 110.2758217168179 3.623e-05 deg
peri 310.6941858566695 3.8633e-05 deg
M 167.038797561781 1.4137e-05 deg
tp 2458456.323544999254
(2018-Dec-03.82354500)
4.5472e-05 TDB
period 1172.802526477788
3.21
4.2732e-06
1.17e-08
d
yr
n .3069570467938602 1.1184e-09 deg/d
Q 2.409126438590607 5.8518e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2439  
   data-arc span      13373 days (36.61 yr)  
   first obs. used      1984-01-27  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:16:49  

Additional Information
 Earth MOID = .963912 au 
 Jupiter MOID = 2.8395 au 
 T_jup = 3.669 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457124.5 (2015-Apr-12.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062632131271873 4.2935e-08  
q 1.945470809288678 9.3476e-08 au
tp 2457283.276335804966
(2015-Sep-17.77633581)
4.4923e-05 TDB
node 110.3242739300192 3.6219e-05 deg
peri 310.6723081566963 3.8665e-05 deg
i 6.385702211124563 3.3896e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2439  
   data-arc span      13373 days (36.61 yr)  
   first obs. used      1984-01-27  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:16:49  

Additional Information
 Jupiter MOID = 2.8395 au 
 T_jup = 3.669 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.843409748639648E-15 -4.008213578045853E-15 -2.376308556781676E-13 -3.60792800854394E-15 -1.089269435935471E-13 1.440877890636528E-17
q -4.008213578045853E-15 8.737774410038404E-15 5.55009111096336E-13 7.876605135468052E-15 2.471779608396943E-13 -6.104972936277123E-18
tp -2.376308556781676E-13 5.55009111096336E-13 2.018047815307918E-9 -7.707802410689099E-13 6.246122267645503E-10 -7.439883942064766E-13
node -3.60792800854394E-15 7.876605135468052E-15 -7.707802410689099E-13 1.311847142829458E-9 -1.303465360333646E-9 -4.835493025180197E-11
peri -1.089269435935471E-13 2.471779608396943E-13 6.246122267645503E-10 -1.303465360333646E-9 1.495008809037185E-9 4.783651637830653E-11
i 1.440877890636528E-17 -6.104972936277123E-18 -7.439883942064766E-13 -4.835493025180197E-11 4.783651637830653E-11 1.148920273616412E-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 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

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