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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1100904454634849 1.3464e-08  
a 2.670172511030918 1.0583e-08 au
q 2.376212029827173 3.9548e-08 au
i 13.95561429376792 3.9443e-07 deg
node 110.8502066767217 1.5065e-06 deg
peri 11.37720790956769 7.7626e-06 deg
M 329.9968055856747 1.0004e-05 deg
tp 2459333.322730242229
(2021-Apr-28.82273024)
4.4486e-05 TDB
period 1593.70306464341
4.36
9.4744e-06
2.594e-08
d
yr
n .2258890052900474 1.3429e-09 deg/d
Q 2.964132992234664 1.1748e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2533  
   data-arc span      19051 days (52.16 yr)  
   first obs. used      1969-01-15  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .388  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:22:24  

Additional Information
 Earth MOID = 1.3936 au 
 Jupiter MOID = 2.13444 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. 2020-October); 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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