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120100 (2003 EY57)
Classification: Main-belt Asteroid          SPK-ID: 2120100
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06752630623227873 5.9375e-08  
a 3.175100393748357 2.957e-08 au
q 2.960697592241877 1.9031e-07 au
i 25.85869928601109 6.0982e-06 deg
node 162.2778522136867 1.2686e-05 deg
peri 55.89412755622877 4.2673e-05 deg
M 37.58583414149841 3.9111e-05 deg
tp 2458984.747263978660
(2020-May-15.24726398)
0.00022481 TDB
period 2066.496240984744
5.66
2.8869e-05
7.904e-08
d
yr
n .1742079142754452 2.4337e-09 deg/d
Q 3.389503195254837 3.1567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      652  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1999-09-09  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55952  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:04:56  

Additional Information
 Earth MOID = 2.01475 au 
 Jupiter MOID = 1.66762 au 
 T_jup = 3.041 
[ 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 14.4   n/a MPO469244  
diameter diameter 7.295 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.638 h n/a LCDB (Rev. 2020-October); 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.069   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120100 (2003 EY57)          Discovered 2003-Mar-09 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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