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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06752629966363888 6.0579e-08  
a 3.175100391193689 2.9749e-08 au
q 2.960697610715807 1.9353e-07 au
i 25.85870004895235 6.2277e-06 deg
node 162.2778535135502 1.2893e-05 deg
peri 55.89412814721137 4.2972e-05 deg
M 37.58583293470132 3.9261e-05 deg
tp 2458984.747271166388
(2020-May-15.24727117)
0.0002257 TDB
period 2066.496238490707
5.66
2.9043e-05
7.952e-08
d
yr
n .1742079144856953 2.4484e-09 deg/d
Q 3.389503171671571 3.1758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1999-09-09  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56062  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:59:32  

Additional Information
 Earth MOID = 2.01475 au 
 Jupiter MOID = 1.66762 au 
 T_jup = 3.041 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457387.5 (2015-Dec-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06727767176820817 6.0558e-08  
q 2.96266924155531 1.9364e-07 au
tp 2456910.176767926450
(2014-Sep-09.67676793)
0.00023108 TDB
node 162.306011885655 1.2892e-05 deg
peri 54.6607231782522 4.3057e-05 deg
i 25.85613238086056 6.2272e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1999-09-09  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56062  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:59:32  

Additional Information
 Jupiter MOID = 1.66762 au 
 T_jup = 3.041 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.667276640549431E-15 -1.160329692187508E-14 -1.274671559007606E-12 2.129401282045037E-14 -1.612595105209482E-13 -8.500928618805897E-15
q -1.160329692187508E-14 3.749679481027048E-14 2.593195443300477E-12 -6.541457686672273E-14 2.855682832053489E-13 3.268427436467471E-14
tp -1.274671559007606E-12 2.593195443300477E-12 5.339605729188479E-8 5.750875431758045E-12 9.53117626397995E-9 1.43810473364118E-11
node 2.129401282045037E-14 -6.541457686672273E-14 5.750875431758045E-12 1.6621046747453E-10 -1.475115856728616E-10 2.045524782141813E-11
peri -1.612595105209482E-13 2.855682832053489E-13 9.53117626397995E-9 -1.475115856728616E-10 1.85394477672393E-9 -1.555104369622146E-11
i -8.500928618805897E-15 3.268427436467471E-14 1.43810473364118E-11 2.045524782141813E-11 -1.555104369622146E-11 3.877756032815878E-11

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

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