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71728 (2000 HE64)
Classification: Main-belt Asteroid          SPK-ID: 2071728
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2477124283865682 4.4345e-08  
a 3.058122736839849 2.4561e-08 au
q 2.300587727393072 1.3371e-07 au
i 6.376518086566596 5.2817e-06 deg
node 285.2902303960519 6.0264e-05 deg
peri 192.7542466749645 6.1879e-05 deg
M 258.5963808155582 1.541e-05 deg
tp 2459150.714142684010
(2020-Oct-28.21414268)
8.7539e-05 TDB
period 1953.353272391228
5.35
2.3532e-05
6.443e-08
d
yr
n .1842984600319124 2.2202e-09 deg/d
Q 3.815657746286626 3.0645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      14856 days (40.67 yr)  
   first obs. used      1978-03-05  
   last obs. used      2018-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60456  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:14:21  

Additional Information
 Earth MOID = 1.31761 au 
 Jupiter MOID = 1.31231 au 
 T_jup = 3.178 
[ 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 MPO453125  
diameter diameter 4.676 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.140   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71728 (2000 HE64)          Discovered 2000-Apr-26 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 HE64 = 1978 EK7 = 1998 XT64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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