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56104 (1999 BA20)
Classification: Main-belt Asteroid          SPK-ID: 2056104
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1785850267239105 4.3236e-08  
a 2.428368898787109 1.0915e-08 au
q 1.9946985741017 1.0411e-07 au
i 5.993687323810999 4.6479e-06 deg
node 45.56002045188754 4.7021e-05 deg
peri 44.56455640020592 4.8788e-05 deg
M 144.2211523414846 1.2862e-05 deg
tp 2458046.771495486914
(2017-Oct-20.27149549)
4.8726e-05 TDB
period 1382.198508251492
3.78
9.3194e-06
2.552e-08
d
yr
n .2604546292380298 1.7561e-09 deg/d
Q 2.862039223472519 1.2865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      929  
   data-arc span      20995 days (57.48 yr)  
   first obs. used      1960-11-24  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51139  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 01:19:01  

Additional Information
 Earth MOID = 1.01613 au 
 Jupiter MOID = 2.35995 au 
 T_jup = 3.480 
[ 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 15.0   n/a MPO337703  
diameter diameter 5.681 km 0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56104 (1999 BA20)          Discovered 1999-Jan-16 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 BA20 = 1960 WZ = 1979 YB3 = 2001 QM273 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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