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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2477522037348188 3.976e-08  
a 3.05935911791433 2.0957e-08 au
q 2.301396154434843 1.238e-07 au
i 6.376563515911215 4.3854e-06 deg
node 285.2870436265048 5.9362e-05 deg
peri 192.667060655218 6.0953e-05 deg
M 332.3824361449922 1.5238e-05 deg
tp 2459150.443271210197
(2020-Oct-27.94327121)
8.3606e-05 TDB
period 1954.537986010043
5.35
2.0083e-05
5.498e-08
d
yr
n .1841867503096715 1.8925e-09 deg/d
Q 3.817322081393816 2.6149e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1000  
   data-arc span      15541 days (42.55 yr)  
   first obs. used      1978-03-05  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56953  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:43:06  

Additional Information
 Earth MOID = 1.31813 au 
 Jupiter MOID = 1.30978 au 
 T_jup = 3.177 
[ 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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