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

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1972397489226291 6.5375e-08  
a 2.438876630889934 2.184e-08 AU
q 1.957833216559935 1.5406e-07 AU
i 5.143579756724141 8.388e-06 deg
node 155.1306761385588 6.6547e-05 deg
peri 151.9977350836904 7.0283e-05 deg
M 163.6609709297839 2.4357e-05 deg
tp 2456368.050580998840
(2013-Mar-16.55058100)
8.9273e-05 JED
period 1391.179519142049
3.81
1.8687e-05
5.116e-08
d
yr
n .2587732172926285 3.4759e-09 deg/d
Q 2.919920045219932 2.6147e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      613  
   data-arc span      8900 days (24.37 yr)  
   first obs. used      1990-09-18  
   last obs. used      2015-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51277  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:16:05  

Additional Information
 Earth MOID = .945927 AU 
 T_jup = 3.470 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a MPO267808  

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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