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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06742969128436303 6.1316e-08  
a 3.174546203815991 3.1755e-08 au
q 2.960487533324732 1.9778e-07 au
i 25.85877769137582 6.7134e-06 deg
node 162.2828354873107 1.3063e-05 deg
peri 55.71150420981236 4.5198e-05 deg
M 2.900973742339565 4.266e-05 deg
tp 2458983.851994811664
(2020-May-14.35199481)
0.00024481 TDB
period 2065.955227491151
5.66
3.0999e-05
8.487e-08
d
yr
n .1742535342535839 2.6146e-09 deg/d
Q 3.38860487430725 3.3896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      7538 days (20.64 yr)  
   first obs. used      1999-09-09  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56992  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:34:40  

Additional Information
 Earth MOID = 2.0147 au 
 Jupiter MOID = 1.66875 au 
 T_jup = 3.042 
[ 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. 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 0.069   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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