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JPL Small-Body Database Browser
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5293 Bentengahama (1991 BQ2)
Classification: Main-belt Asteroid          SPK-ID: 2005293
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1099935832756764 3.9192e-08  
a 2.66954394009792 1.2105e-08 au
q 2.375911236414682 1.0445e-07 au
i 13.9557934473736 4.4088e-06 deg
node 110.8495218454347 1.7719e-05 deg
peri 11.48072520004914 2.6328e-05 deg
M 284.7098188207034 2.0155e-05 deg
tp 2459333.688404469215
(2021-Apr-29.18840447)
8.9929e-05 TDB
period 1593.140350177575
4.36
1.0836e-05
2.967e-08
d
yr
n .2259687917388281 1.5369e-09 deg/d
Q 2.963176643781158 1.3436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2064  
   data-arc span      18620 days (50.98 yr)  
   first obs. used      1969-01-15  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40879  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:56:35  

Additional Information
 Earth MOID = 1.39341 au 
 Jupiter MOID = 2.1356 au 
 T_jup = 3.331 
[ show covariance matrix ]

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 11.8   n/a MPO452241  
diameter diameter 11.932 km 0.308 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 15.781 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Marchini, A.; Ballini, E.; Chianese, E.; Maggioni, E.; et al. (2017) Minor Planet Bull. 44, 274-276.]
geometric albedo albedo 0.284   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5293 Bentengahama (1991 BQ2)          Discovered 1991-Jan-23 by Matsuyama and Watanabe at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 BQ2 = 1969 AB = 1978 EZ6 = 1985 VA3 = 1989 UW7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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