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86949 (2000 HE87)
Classification: Main-belt Asteroid          SPK-ID: 2086949
[ 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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06935610194267706 4.1033e-08  
a 2.318695403684209 1.0911e-08 au
q 2.15787972889227 9.6053e-08 au
i 8.128512919319931 4.4157e-06 deg
node 98.82221494809259 2.9477e-05 deg
peri 133.8388506023711 4.2974e-05 deg
M 244.6206290161387 3.3529e-05 deg
tp 2459413.823068350332
(2021-Jul-18.32306835)		 0.0001215 TDB
period 1289.62658868137
3.53		 9.1029e-06
2.492e-08		 d
yr
n .2791505720800129 1.9704e-09 deg/d
Q 2.479511078476148 1.1668e-08 au
   Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      7229 days (19.79 yr)  
   first obs. used      2000-04-30  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56744  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:55:33  

Additional Information
 Earth MOID = 1.15381 au 
 Jupiter MOID = 2.52822 au 
 T_jup = 3.563 
[ 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 16.0   n/a MPO412687  

86949 (2000 HE87)          Discovered 2000-Apr-30 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
2141-Aug-18 00:14 00:08 Vesta 0.031791559807413 0.0317604699845884 0.0318226491469613 1.00876258115319 1.00875887097653 2503273.509643856 8.26678150116115 1512.36361492104 43.617409148843 -6.99702499729182 12818.4165029196 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 20:55:34 2020-Nov-12 20:55
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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