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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2477682349633637 3.6931e-08  
a 3.059286382349835 1.4484e-08 au
q 2.301292395147562 1.1099e-07 au
i 6.376077552659679 3.877e-06 deg
node 285.2837025141419 4.4155e-05 deg
peri 192.6038719666988 4.5806e-05 deg
M 45.36051993175892 1.0213e-05 deg
tp 2459150.234173543397
(2020-Oct-27.73417354)
5.5286e-05 TDB
period 1954.468283382821
5.35
1.388e-05
3.8e-08
d
yr
n .1841933190017834 1.3081e-09 deg/d
Q 3.817280369552108 1.8073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1489  
   data-arc span      15808 days (43.28 yr)  
   first obs. used      1978-03-05  
   last obs. used      2021-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5062  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:40:05  

Additional Information
 Earth MOID = 1.31845 au 
 Jupiter MOID = 1.30997 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 14.25   n/a MPCxxxxx  
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 21:39 00:02 Jupiter 1.34533209302694 1.34533158088461 1.34533260524574 1.76738066430793 1.36544216047334 2428742.402215016 1.74742508666655 603.914990248771 93.891949329813 -89.7265656116835 1982950.83834273 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 08:40:11 2021-Jul-08 08:40
1986-Dec-19 21:36 < 00:01 Jupiter 1.78572133543378 1.78572031266351 1.78572235820699 1.70314702517888 1.39715722883169 2446784.399930958 0.948817093770582 207.840598302428 58.1800541364748 61.092467451674 1741354.83945926 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 08:40:11 2021-Jul-08 08:40
1996-May-28 21:52 < 00:01 Jupiter 1.49704364502357 1.49704310072652 1.49704418932759 1.81901035639741 1.47553551868741 2450232.411088370 0.592283014295868 308.116135901082 34.4235157541457 78.7576097776207 2302751.13806823 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 08:40:11 2021-Jul-08 08:40
2045-Aug-08 09:24 < 00:01 Jupiter 1.51276352991594 1.51276262460839 1.51276443534964 1.2323186258839 0.631485979988176 2468200.891558522 0.850176113356424 2069.63495427238 708.026201599556 -57.5474133947745 1271072.48554254 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 08:40:11 2021-Jul-08 08:40
2055-Feb-14 03:48 00:01 Jupiter 1.77865641737449 1.77865521113966 1.77865762360942 2.03636810717082 1.78727878818868 2471677.658527371 1.03129571652934 107.878666384366 23.6604302374106 69.8481988588648 1641015.53905221 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 08:40:11 2021-Jul-08 08:40
2104-May-27 04:38 00:02 Jupiter 1.35370878645342 1.35370800747155 1.35370956548224 1.46076276207114 0.939370862970477 2489676.693016372 1.97172903934872 1156.15950807465 87.7388995468103 -69.0956268644112 3155309.86859595 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 08:40:11 2021-Jul-08 08:40
2163-May-07 20:40 00:04 Jupiter 1.32013482036488 1.32013424638369 1.32013539454192 1.57788314600911 1.09839830972444 2511206.361041556 3.67930225921982 1347.51057038057 146.963474098638 -80.7912081169219 2422536.54990763 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 08:40:11 2021-Jul-08 08:40

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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