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JPL Small-Body Database Browser
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27421 Nathanhan (2000 EK164)
Classification: Main-belt Asteroid          SPK-ID: 2027421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439982633890157 5.0134e-08  
a 2.741970247209404 1.7108e-08 au
q 2.3471312933469 1.3613e-07 au
i 5.631687515485335 5.5055e-06 deg
node 182.046772815012 4.716e-05 deg
peri 181.1635881263858 4.981e-05 deg
M 243.204512351862 1.8182e-05 deg
tp 2459138.541899675527
(2020-Oct-16.04189968)
8.6095e-05 TDB
period 1658.412390611544
4.54
1.5521e-05
4.249e-08
d
yr
n .2170750785739421 2.0316e-09 deg/d
Q 3.136809201071909 1.9572e-08 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      12621 days (34.55 yr)  
   first obs. used      1984-10-20  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56159  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:27:49  

Additional Information
 Earth MOID = 1.34383 au 
 Jupiter MOID = 2.31829 au 
 T_jup = 3.327 
[ 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 14.2   n/a MPO299154  
diameter diameter 8.724 km 0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27421 Nathanhan           Discovered 2000 Mar. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Nathan Han (b. 1999) is a finalist in the 2011 Broadcom MASTERS, a math and science competition for middle-school students, for his biochemistry, medicine, health science and microbiology project. He attends the Jackson Mann K-8 School, Allston, Massachusetts.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2000 EK164 = 1984 UX4 = 1996 GA2 = 2000 GT175 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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