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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2477522009422621 3.9625e-08  
a 3.059359124041096 1.9579e-08 au
q 2.301396167587123 1.2281e-07 au
i 6.376563516550052 4.3828e-06 deg
node 285.2870457779269 5.7373e-05 deg
peri 192.6670621478591 5.8909e-05 deg
M 332.3824311759395 1.3961e-05 deg
tp 2459150.443298638958
(2020-Oct-27.94329864)
7.6513e-05 TDB
period 1954.537991881369
5.35
1.8763e-05
5.137e-08
d
yr
n .1841867497563845 1.7681e-09 deg/d
Q 3.817322080495068 2.443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1030  
   data-arc span      15581 days (42.66 yr)  
   first obs. used      1978-03-05  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56657  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:54:51  

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

[ 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
1937-Jul-27 21:40 00:02 Jupiter 1.34533179152709 1.34533101780963 1.34533256541907 1.7673813731449 1.3654429720843 2428742.402780728 2.24003660233967 900.976053261135 102.370143846378 -89.9529436681946 1840046.80672941 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:54:54 2020-Nov-12 21:54
1986-Dec-19 21:36 00:01 Jupiter 1.78572180049556 1.78572046752249 1.7857231334728 1.70314842907605 1.39715902673522 2446784.400161288 1.21608917665998 249.483831178998 82.0285159934413 63.2775032909798 1260869.65765518 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:54:54 2020-Nov-12 21:54
1996-May-28 21:52 < 00:01 Jupiter 1.49704341724449 1.49704267096284 1.49704416354137 1.81901118305699 1.47553647731505 2450232.411199122 0.730743088112681 421.340031960429 41.2358424853775 80.2856311173163 1802914.21123819 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:54:54 2020-Nov-12 21:54
2045-Aug-08 09:24 00:01 Jupiter 1.51276361609204 1.51276262918626 1.51276460316815 1.23231909766855 0.631486946267343 2468200.891427714 1.11784290765068 2274.54651879196 754.369308446963 -57.1284833819997 1209807.19654629 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:54:54 2020-Nov-12 21:54
2055-Feb-14 03:48 00:01 Jupiter 1.77865648273373 1.77865512631459 1.77865783915369 2.03636888229683 1.78727967966137 2471677.658388404 1.3742252064932 156.752811277392 24.3690098759966 70.0057784074774 1413582.29757329 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:54:54 2020-Nov-12 21:54
2104-May-27 04:37 00:03 Jupiter 1.35370862614042 1.35370762955944 1.35370962281298 1.46076415037097 0.939372939274776 2489676.692424329 2.698616728503 1332.87369864716 119.646715750318 -69.7561849742166 2651684.43156959 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:54:54 2020-Nov-12 21:54
2163-May-07 20:38 00:05 Jupiter 1.32013495634797 1.32013432761187 1.32013558537943 1.57788497999075 1.09840100123752 2511206.359853747 4.9092338307414 1664.32933813812 156.558665433839 -81.1688234108941 2265199.62209804 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:54:54 2020-Nov-12 21:54

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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