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55860 (1997 BQ6)
Classification: Main-belt Asteroid          SPK-ID: 2055860
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216267600676166 4.5939e-08  
a 3.198094253835799 2.3203e-08 au
q 2.809120411350889 1.4822e-07 au
i .9045725324224103 4.9438e-06 deg
node 57.8721237677786 0.00031697 deg
peri 98.31882828280723 0.00031765 deg
M 13.82840850100161 1.9388e-05 deg
tp 2458920.257395750514
(2020-Mar-11.75739575)
0.00011248 TDB
period 2088.984970882406
5.72
2.2735e-05
6.225e-08
d
yr
n .1723324988058352 1.8755e-09 deg/d
Q 3.587068096320709 2.6026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      657  
   data-arc span      10247 days (28.05 yr)  
   first obs. used      1992-05-01  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55341  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:01:57  

Additional Information
 Earth MOID = 1.81896 au 
 Jupiter MOID = 1.39932 au 
 T_jup = 3.183 
[ 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 15.1   n/a MPO280077  
diameter diameter 5.571 km 0.886 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.85 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.039   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

55860 (1997 BQ6)          Discovered 1997-Jan-31 by Sarounova, L. at Ondrejov
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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