Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1069005845449321 4.3085e-08  
a 2.176461440620654 5.306e-09 au
q 1.943796440378802 9.3861e-08 au
i 6.385520166121871 3.4051e-06 deg
node 110.2758196797256 3.6531e-05 deg
peri 310.6941869404601 3.8993e-05 deg
M 167.0387982619242 1.4258e-05 deg
tp 2458456.323542655813
(2018-Dec-03.82354266)
4.5894e-05 TDB
period 1172.802526612541
3.21
4.2888e-06
1.174e-08
d
yr
n .3069570467585915 1.1225e-09 deg/d
Q 2.409126440862507 5.8732e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2331  
   data-arc span      13292 days (36.39 yr)  
   first obs. used      1984-01-27  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:54:26  

Additional Information
 Earth MOID = .963912 au 
 Jupiter MOID = 2.8395 au 
 T_jup = 3.669 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457029.5 (2015-Jan-07.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1063089862523604 4.2995e-08  
q 1.945501597123138 9.3605e-08 au
tp 2457283.203649624257
(2015-Sep-17.70364962)
4.5394e-05 TDB
node 110.3250727711098 3.6519e-05 deg
peri 310.6458958607633 3.9022e-05 deg
i 6.385758033817591 3.4045e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2331  
   data-arc span      13292 days (36.39 yr)  
   first obs. used      1984-01-27  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:54:26  

Additional Information
 Jupiter MOID = 2.8395 au 
 T_jup = 3.669 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.848555154066065E-15 -4.019314644604234E-15 -2.479221511292944E-13 -3.217549133234602E-15 -1.132454434006722E-13 1.756299903729652E-17
q -4.019314644604234E-15 8.761892666779924E-15 5.745735707640661E-13 7.060435309764778E-15 2.555115048789196E-13 -1.12041916321867E-17
tp -2.479221511292944E-13 5.745735707640661E-13 2.060657625257382E-9 -9.818608502159195E-13 6.408217502199733E-10 -7.725950634566706E-13
node -3.217549133234602E-15 7.060435309764778E-15 -9.818608502159195E-13 1.333655776753554E-9 -1.325203178557264E-9 -4.710360461108965E-11
peri -1.132454434006722E-13 2.555115048789196E-13 6.408217502199733E-10 -1.325203178557264E-9 1.522684785389487E-9 4.658364121717055E-11
i 1.756299903729652E-17 -1.12041916321867E-17 -7.725950634566706E-13 -4.710360461108965E-11 4.658364121717055E-11 1.159028180155617E-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

[ show close-approach data ]
Alternate Designations
 1984 BS = 1991 HE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-12 16:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin