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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 ]

[ hide orbit diagram ]

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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06926198987930955 4.0835e-08  
a 2.318521313647986 1.0579e-08 au
q 2.157935913887135 9.5785e-08 au
i 8.128247965624828 4.3358e-06 deg
node 98.82055504521996 2.9438e-05 deg
peri 133.9050008184896 4.2348e-05 deg
M 300.3779867156882 3.2572e-05 deg
tp 2459414.059650775583
(2021-Jul-18.55965078)
0.00011732 TDB
period 1289.481351671155
3.53
8.8259e-06
2.416e-08
d
yr
n .2791820133989867 1.9109e-09 deg/d
Q 2.479106713408836 1.1312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      674  
   data-arc span      7624 days (20.87 yr)  
   first obs. used      2000-04-30  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5593  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:21:37  

Additional Information
 Earth MOID = 1.15238 au 
 Jupiter MOID = 2.52752 au 
 T_jup = 3.563 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457116.5 (2015-Apr-04.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0695390449292652 4.0785e-08  
q 2.157372187561438 9.5695e-08 au
tp 2456836.345732652897
(2014-Jun-27.84573265)
0.00011038 TDB
node 98.86216673165679 2.945e-05 deg
peri 134.2242790790226 4.2303e-05 deg
i 8.126611069805991 4.3346e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      674  
   data-arc span      7624 days (20.87 yr)  
   first obs. used      2000-04-30  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5593  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:21:37  

Additional Information
 Jupiter MOID = 2.52752 au 
 T_jup = 3.563 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.663400061315201E-15 -3.882499383228033E-15 -3.7115467239044E-14 3.24924947508809E-16 4.519587269126312E-15 -2.632083873071622E-16
q -3.882499383228033E-15 9.157471207685794E-15 4.211375741972878E-13 -1.500702674548347E-15 8.520370242925043E-14 8.455661555651988E-16
tp -3.7115467239044E-14 4.211375741972878E-13 1.218309274519602E-8 -9.425015747463784E-13 3.367752296409656E-9 3.920983818763327E-12
node 3.24924947508809E-16 -1.500702674548347E-15 -9.425015747463784E-13 8.67326625568395E-10 -8.584160018072581E-10 -2.104692571343391E-11
peri 4.519587269126312E-15 8.520370242925043E-14 3.367752296409656E-9 -8.584160018072581E-10 1.789545428379093E-9 2.188277755650965E-11
i -2.632083873071622E-16 8.455661555651988E-16 3.920983818763327E-12 -2.104692571343391E-11 2.188277755650965E-11 1.878906768249922E-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 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 26 CATAB v2.0f-lin.ifort 2021-Apr-13 14:21:39 2021-Apr-13 14:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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