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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05129075216623383 6.93e-08  
a 2.471809090247237 1.2173e-08 au
q 2.345028142797122 1.6874e-07 au
i 4.279649867907506 5.2032e-06 deg
node 221.0644383185663 6.3919e-05 deg
peri 158.3606338198882 7.7324e-05 deg
M 265.1330671869516 4.2747e-05 deg
tp 2459374.553026584432
(2021-Jun-09.05302658)
0.00016905 TDB
period 1419.452337894853
3.89
1.0486e-05
2.871e-08
d
yr
n .2536189418898736 1.8735e-09 deg/d
Q 2.598590037697352 1.2798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      672  
   data-arc span      7366 days (20.17 yr)  
   first obs. used      2000-04-24  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56602  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:55:50  

Additional Information
 Earth MOID = 1.3477 au 
 Jupiter MOID = 2.61636 au 
 T_jup = 3.478 
[ 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 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

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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
1912-Feb-06 22:41 < 00:01 Eunom 0.0240774126031003 0.0240611008188856 0.024093730877706 4.44677743702012 4.44677730590926 2419439.445249181 0.561813571097351 1024.58979411202 44.7951016314574 -37.5431099588413 49033.4997416381 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:55:51 2020-Nov-12 20:55
2032-Jun-17 18:52 < 00:01 Eunom 0.0384488479081321 0.0384448630739459 0.0384528335256798 4.42647948598484 4.42647940350419 2463401.286311234 0.672824654511585 342.34673150606 39.1325488728147 -55.0880648658292 120810.173721738 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:55:51 2020-Nov-12 20:55
2152-Oct-31 14:31 00:02 Eunom 0.0400302276321755 0.0400269552943395 0.0400335275624827 4.47186023839761 4.47186015997928 2507366.104988712 2.04156924405649 1721.35189562741 42.1151690538271 -84.72814949621 141471.482717812 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:55:51 2020-Nov-12 20:55
2189-Oct-17 14:33 00:01 Juno 0.0428059220621258 0.0427945413790462 0.0428173347320314 5.32182747876161 5.32182742535668 2520866.105924791 1.10752338133817 1934.81770185896 43.590776614986 -72.9788764100438 140393.054422628 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:55:51 2020-Nov-12 20:55

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