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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457090.5 (2015-Mar-09.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06952564781070143 4.0909e-08  
q 2.157398180389401 9.5827e-08 au
tp 2456836.345031731926
(2014-Jun-27.84503173)
0.00011305 TDB
node 98.86249330995534 2.9465e-05 deg
peri 134.2250223130926 4.2812e-05 deg
i 8.126672340083569 4.3941e-06 deg
  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
 Jupiter MOID = 2.52752 au 
 T_jup = 3.563 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.673509423351673E-15 -3.898578962319049E-15 3.964830333767625E-14 -4.170430603621355E-17 2.524876446532496E-14 9.741406986015942E-18
q -3.898578962319049E-15 9.182886465541526E-15 2.986531590830107E-13 -7.530924476315697E-16 5.197271666456414E-14 2.663527438345414E-16
tp 3.964830333767625E-14 2.986531590830107E-13 1.277983023553007E-8 -1.904670857468461E-12 3.527023072424594E-9 4.326012752691824E-12
node -4.170430603621355E-17 -7.530924476315697E-16 -1.904670857468461E-12 8.681644062498769E-10 -8.59495335234049E-10 -2.167372806701588E-11
peri 2.524876446532496E-14 5.197271666456414E-14 3.527023072424594E-9 -8.59495335234049E-10 1.832866668545809E-9 2.260697837566537E-11
i 9.741406986015942E-18 2.663527438345414E-16 4.326012752691824E-12 -2.167372806701588E-11 2.260697837566537E-11 1.930855372347824E-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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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