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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1977702157897952 3.3575e-08  
a 2.43769431679981 8.7845e-09 au
q 1.955590985736754 8.3676e-08 au
i 5.149168651398803 3.7542e-06 deg
node 155.0976910175704 4.7396e-05 deg
peri 152.4085420308643 4.8702e-05 deg
M 321.0071356778914 1.1769e-05 deg
tp 2459151.073980699231
(2020-Oct-28.57398070)
4.5624e-05 TDB
period 1390.168021613857
3.81
7.5145e-06
2.057e-08
d
yr
n .2589615027844426 1.3998e-09 deg/d
Q 2.919797647862865 1.0522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1337  
   data-arc span      10864 days (29.74 yr)  
   first obs. used      1990-09-18  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:34:58  

Additional Information
 Earth MOID = .942687 au 
 Jupiter MOID = 2.35067 au 
 T_jup = 3.471 
[ 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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1911-Oct-02 02:31 00:04 Europ 0.0356060228842373 0.035594592503494 0.0356174547894383 4.11905807126428 4.11905799879561 2419311.604986568 3.72822112330688 679.328068813189 69.909463866606 -33.2015141056001 42206.402168106 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 19:35:17 2020-Jun-23 19:35

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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