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65981 (1998 HD119)
Classification: Main-belt Asteroid          SPK-ID: 2065981
[ 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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779079348377191 5.1113e-08  
a 2.645018271866002 1.3985e-08 au
q 2.174448533510289 1.4026e-07 au
i 13.79815542851187 5.2503e-06 deg
node 182.5634436881092 1.7073e-05 deg
peri 8.415733747365266 2.0846e-05 deg
M 68.56942403638257 1.2751e-05 deg
tp 2458701.225687099881
(2019-Aug-05.72568710)		 5.4512e-05 TDB
period 1571.236074359868
4.30		 1.2461e-05
3.412e-08		 d
yr
n .2291189757380452 1.8171e-09 deg/d
Q 3.115588010221715 1.6473e-08 au
   Orbit Determination Parameters
   # obs. used (total)      705  
   data-arc span      8128 days (22.25 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5783  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:19:59  

Additional Information
 Earth MOID = 1.17619 au 
 Jupiter MOID = 1.8398 au 
 T_jup = 3.330 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457030.5 (2015-Jan-08.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1780738328808579 5.0995e-08  
q 2.173241329003856 1.4008e-07 au
tp 2457129.181028745110
(2015-Apr-16.68102875)		 4.9662e-05 TDB
node 182.6104505328649 1.7073e-05 deg
peri 7.945577452849646 2.0849e-05 deg
i 13.79922165188626 5.251e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      705  
   data-arc span      8128 days (22.25 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5783  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:19:59  

Additional Information
 Jupiter MOID = 1.8398 au 
 T_jup = 3.330 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.600446770486319E-15 -7.122597512394321E-15 -2.110367718763521E-13 -1.02392057761906E-14 2.012260284787406E-14 -9.016570078832792E-15
q -7.122597512394321E-15 1.962208864003843E-14 7.169216159362664E-13 2.833149313037028E-14 -2.627007196623634E-14 2.528073952741417E-14
tp -2.110367718763521E-13 7.169216159362664E-13 2.466310761780307E-9 9.334771224975784E-12 6.045718767151721E-10 3.760193320369736E-12
node -1.02392057761906E-14 2.833149313037028E-14 9.334771224975784E-12 2.914987681576632E-10 -2.802483150813432E-10 7.094665707487014E-12
peri 2.012260284787406E-14 -2.627007196623634E-14 6.045718767151721E-10 -2.802483150813432E-10 4.34676451213478E-10 -6.059816545674334E-12
i -9.016570078832792E-15 2.528073952741417E-14 3.760193320369736E-12 7.094665707487014E-12 -6.059816545674334E-12 2.757267800945632E-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 15.2   n/a MPO436241  
diameter diameter 3.000 km 0.334 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65981 (1998 HD119)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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