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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06926199142711233 4.0956e-08  
a 2.31852131575017 1.0867e-08 au
q 2.157935912255104 9.5915e-08 au
i 8.128247486903275 4.3953e-06 deg
node 98.82055572009993 2.9453e-05 deg
peri 133.9050042262392 4.2858e-05 deg
M 300.3779816498775 3.3511e-05 deg
tp 2459414.059669211223
(2021-Jul-18.55966921)
0.00012074 TDB
period 1289.481353424898
3.53
9.0661e-06
2.482e-08
d
yr
n .2791820130192888 1.9629e-09 deg/d
Q 2.479106719245235 1.162e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      2000-04-30  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56545  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:45:35  

Additional Information
 Earth MOID = 1.15238 au 
 Jupiter MOID = 2.52752 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 16.04   n/a E2021B10  

86949 (2000 HE87)          Discovered 2000-Apr-30 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
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 25 CATAB v2.0f-lin.ifort 2021-Feb-24 07:45:36 2021-Feb-24 07:45
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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