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JPL Small-Body Database Browser
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27619 Ethanmessier (2001 KS57)
Classification: Main-belt Asteroid          SPK-ID: 2027619
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1977702207353957 3.4479e-08  
a 2.437694321305208 1.0854e-08 au
q 1.955590977295256 8.4845e-08 au
i 5.14916631092638 4.4472e-06 deg
node 155.0976815272965 4.8527e-05 deg
peri 152.4085562615124 5.0295e-05 deg
M 321.0071284938766 1.5484e-05 deg
tp 2459151.074008858305
(2020-Oct-28.57400886)
6.0311e-05 TDB
period 1390.168025467864
3.81
9.2848e-06
2.542e-08
d
yr
n .2589615020665154 1.7296e-09 deg/d
Q 2.919797665315159 1.3001e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1182  
   data-arc span      10813 days (29.60 yr)  
   first obs. used      1990-09-18  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49825  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:12:15  

Additional Information
 Earth MOID = .942687 au 
 Jupiter MOID = 2.35067 au 
 T_jup = 3.471 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456739.5 (2014-Mar-23.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1977788919030354 3.452e-08  
q 1.955115389419459 8.4869e-08 au
tp 2456367.825234553754
(2013-Mar-16.32523455)
5.2398e-05 TDB
node 155.1613075427568 4.8638e-05 deg
peri 151.7872448361322 5.0371e-05 deg
i 5.141944576843617 4.4406e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1182  
   data-arc span      10813 days (29.60 yr)  
   first obs. used      1990-09-18  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49825  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:12:15  

Additional Information
 Jupiter MOID = 2.35067 au 
 T_jup = 3.471 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.191609132644534E-15 -2.913653519736071E-15 7.468465358327054E-14 -9.132034299319263E-16 5.532482605044927E-14 1.033884052161262E-16
q -2.913653519736071E-15 7.202719112077817E-15 -5.606037522303594E-14 3.258292435718268E-15 -1.026212862508115E-13 -2.277574235894953E-17
tp 7.468465358327054E-14 -5.606037522303594E-14 2.745557396188785E-9 -6.879077599882719E-12 7.037929408043107E-10 1.655735400125183E-12
node -9.132034299319263E-16 3.258292435718268E-15 -6.879077599882719E-12 2.365645586715782E-9 -2.357730509356823E-9 6.371279143241766E-11
peri 5.532482605044927E-14 -1.026212862508115E-13 7.037929408043107E-10 -2.357730509356823E-9 2.537217818937887E-9 -6.306782740037899E-11
i 1.033884052161262E-16 -2.277574235894953E-17 1.655735400125183E-12 6.371279143241766E-11 -6.306782740037899E-11 1.971924059370737E-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 15.1   n/a MPO384983  

27619 Ethanmessier           Discovered 2001 May 25 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Ethan Wyatt Messier (b. 2000) is a finalist in the 2012 Broadcom MASTERS, a math and science competition for middle-school students, for his physical sciences project. He attends the New England Christian Academy, Swansea, Massachusetts.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121029/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2001 KS57 = 1990 SO12 = 1996 BA16 = 2000 DG19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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