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JPL Small-Body Database Browser
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11551 (1993 BR3)
Classification: Main-belt Asteroid          SPK-ID: 2011551
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1015749520399931 3.4952e-08  
a 2.618221896615302 1.1438e-08 au
q 2.352276133036542 9.0537e-08 au
i 13.15035856888756 3.8131e-06 deg
node 120.3992702335359 1.7913e-05 deg
peri 8.865219471002739 2.8175e-05 deg
M 168.8205066947352 2.1688e-05 deg
tp 2458274.843981754910
(2018-Jun-05.34398175)
9.2196e-05 TDB
period 1547.419633330475
4.24
1.014e-05
2.776e-08
d
yr
n .2326453615075184 1.5245e-09 deg/d
Q 2.884167660194061 1.26e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1623  
   data-arc span      9709 days (26.58 yr)  
   first obs. used      1993-01-21  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47485  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:09:55  

Additional Information
 Earth MOID = 1.36829 au 
 Jupiter MOID = 2.17935 au 
 T_jup = 3.362 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO492883  
diameter diameter 4.680 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.464 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.321   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11551 (1993 BR3)          Discovered 1993-Jan-21 by Urata, T. at Oohira
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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