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86866 (2000 HD18)
Classification: Main-belt Asteroid          SPK-ID: 2086866
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0512906409312061 1.0481e-07  
a 2.471809070346276 1.4767e-08 au
q 2.345028398868647 2.5146e-07 au
i 4.279654692938349 5.4836e-06 deg
node 221.0644040428099 6.6314e-05 deg
peri 158.3606437599971 8.1265e-05 deg
M 265.1331001539999 4.3948e-05 deg
tp 2459374.552892080548
(2021-Jun-09.05289208)
0.00017335 TDB
period 1419.45232075247
3.89
1.272e-05
3.483e-08
d
yr
n .2536189449527683 2.2728e-09 deg/d
Q 2.598589741823905 1.5525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      6940 days (19.00 yr)  
   first obs. used      2000-04-24  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57651  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:06:29  

Additional Information
 Earth MOID = 1.3477 au 
 Jupiter MOID = 2.61636 au 
 T_jup = 3.478 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456579.5 (2013-Oct-14.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05048599763788587 1.0383e-07  
q 2.345443837182317 2.4812e-07 au
tp 2456540.968323847447
(2013-Sep-05.46832385)
0.00018102 TDB
node 221.2022038862019 6.6279e-05 deg
peri 159.1696937780644 8.2253e-05 deg
i 4.281394332421749 5.4837e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      6940 days (19.00 yr)  
   first obs. used      2000-04-24  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57651  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:06:29  

Additional Information
 Jupiter MOID = 2.61636 au 
 T_jup = 3.478 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.077975305237142E-14 -2.573299313712405E-14 -7.950466694479108E-12 2.451703191068817E-14 -2.57719798288975E-12 1.166550350565378E-14
q -2.573299313712405E-14 6.156390703049877E-14 1.919872868914967E-11 -6.044992194982638E-14 6.207723493298138E-12 -2.762231642833602E-14
tp -7.950466694479108E-12 1.919872868914967E-11 3.276914780598586E-8 -1.743829012716715E-11 8.80260086740014E-9 -1.508948402747066E-11
node 2.451703191068817E-14 -6.044992194982638E-14 -1.743829012716715E-11 4.392890026595668E-9 -4.385443834913684E-9 -1.343553197942479E-10
peri -2.57719798288975E-12 6.207723493298138E-12 8.80260086740014E-9 -4.385443834913684E-9 6.765562616823783E-9 1.295583356606208E-10
i 1.166550350565378E-14 -2.762231642833602E-14 -1.508948402747066E-11 -1.343553197942479E-10 1.295583356606208E-10 3.007136681389685E-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 15.9   n/a MPO273029  

86866 (2000 HD18)          Discovered 2000-Apr-24 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2000 HD18 = 2001 QR66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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