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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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456867.5 (2014-Jul-29.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2472013301812726 4.0169e-08  
q 2.302537698688132 1.251e-07 au
tp 2457199.434600735838
(2015-Jun-25.93460074)
7.3947e-05 TDB
node 285.3745657513754 5.9331e-05 deg
peri 193.0622684816535 6.0907e-05 deg
i 6.378258737582609 4.3865e-06 deg
  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
 Jupiter MOID = 1.30978 au 
 T_jup = 3.177 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.613538397192571E-15 -4.985552190469995E-15 3.937986297045305E-13 -1.049978839978863E-14 1.595865652032712E-13 9.59476286327374E-17
q -4.985552190469995E-15 1.564965987660712E-14 -7.990843255695119E-13 3.73292281122349E-14 -4.270178379987771E-13 4.249540529130032E-16
tp 3.937986297045305E-13 -7.990843255695119E-13 5.468179625342673E-9 1.306397653484972E-11 1.085107941654296E-9 3.177792285669795E-12
node -1.049978839978863E-14 3.73292281122349E-14 1.306397653484972E-11 3.520165263386484E-9 -3.495716864840879E-9 1.799865977817516E-12
peri 1.595865652032712E-13 -4.270178379987771E-13 1.085107941654296E-9 -3.495716864840879E-9 3.709719823453168E-9 -1.177585968851085E-12
i 9.59476286327374E-17 4.249540529130032E-16 3.177792285669795E-12 1.799865977817516E-12 -1.177585968851085E-12 1.924101321102098E-11

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 1.34533170906238 1.34533087673158 1.34533254159638 1.7673813107449 1.36544286305212 2428742.402929609 2.38473654404514 969.930068299121 102.472871988663 89.9392068548509 1837883.72070147 T 27 CATAB v2.0f-lin.ifort 2020-Oct-22 18:43:22 2020-Oct-22 18:43
1986-Dec-19 21:36 00:01 Jupiter 1.78572194458451 1.7857205108939 1.78572337827969 1.70314916346493 1.39715994935503 2446784.400258754 1.29930994652196 264.584940297773 85.0420114514705 62.9551892247396 1203668.06236464 T 27 CATAB v2.0f-lin.ifort 2020-Oct-22 18:43:22 2020-Oct-22 18:43
1996-May-28 21:52 < 00:01 Jupiter 1.49704333450862 1.49704252882867 1.49704414020645 1.81901115156719 1.47553641730316 2450232.411240343 0.77625279593253 438.388827342216 42.314130684811 80.6382154274605 1733875.25407703 T 27 CATAB v2.0f-lin.ifort 2020-Oct-22 18:43:22 2020-Oct-22 18:43
2045-Aug-08 09:24 00:01 Jupiter 1.51276359151894 1.51276259562888 1.51276458759001 1.23231913540372 0.631487005503024 2468200.891366875 1.18215792280968 2322.35740087671 758.811567737558 -56.8295207098919 1201192.54044611 T 27 CATAB v2.0f-lin.ifort 2020-Oct-22 18:43:22 2020-Oct-22 18:43
2055-Feb-14 03:48 00:01 Jupiter 1.7786565648606 1.77865517408725 1.77865795563496 2.03636893762474 1.78727975500299 2471677.658296552 1.46096729868159 164.220391454122 24.4858993061936 70.207821686094 1395751.52020148 T 27 CATAB v2.0f-lin.ifort 2020-Oct-22 18:43:22 2020-Oct-22 18:43
2104-May-27 04:37 00:03 Jupiter 1.35370854965357 1.35370750985392 1.35370958956195 1.46076439503641 0.939373282104604 2489676.692223116 2.89782174034882 1378.29195194316 124.02657267597 -69.8048943434619 2579361.49380149 T 27 CATAB v2.0f-lin.ifort 2020-Oct-22 18:43:22 2020-Oct-22 18:43
2163-May-07 20:38 00:05 Jupiter 1.32013499733609 1.32013434987101 1.3201356451396 1.57788531937738 1.09840150691281 2511206.359487371 5.26318246773473 1757.74124384144 159.027874683693 -81.2719030260722 2233558.00647088 T 27 CATAB v2.0f-lin.ifort 2020-Oct-22 18:43:22 2020-Oct-22 18:43

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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