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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06935610142576779 4.1038e-08  
a 2.318695403480691 1.0916e-08 au
q 2.157879729901423 9.6059e-08 au
i 8.12851297754135 4.4158e-06 deg
node 98.82221566296167 2.9535e-05 deg
peri 133.8388501374125 4.3029e-05 deg
M 244.6206288907727 3.3544e-05 deg
tp 2459413.823068745012
(2021-Jul-18.32306874)
0.00012154 TDB
period 1289.626588511579
3.53
9.1067e-06
2.493e-08
d
yr
n .2791505721167656 1.9712e-09 deg/d
Q 2.479511077059959 1.1673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      7185 days (19.67 yr)  
   first obs. used      2000-04-30  
   last obs. used      2020-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56868  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:57:42  

Additional Information
 Earth MOID = 1.15381 au 
 Jupiter MOID = 2.52822 au 
 T_jup = 3.563 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457066.5 (2015-Feb-13.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06951421187600425 4.0992e-08  
q 2.157418607894928 9.5944e-08 au
tp 2456836.346522331006
(2014-Jun-27.84652233)
0.00011381 TDB
node 98.86270326745958 2.9549e-05 deg
peri 134.2262349522517 4.3017e-05 deg
i 8.126724768783934 4.4145e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      7185 days (19.67 yr)  
   first obs. used      2000-04-30  
   last obs. used      2020-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56868  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:57:42  

Additional Information
 Jupiter MOID = 2.52822 au 
 T_jup = 3.563 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.680333734021109E-15 -3.910976832734541E-15 6.889505434658025E-14 3.205306794462865E-17 3.281080611237214E-14 3.481553196399588E-17
q -3.910976832734541E-15 9.205274465105711E-15 2.448329827849321E-13 -9.394507477500979E-16 3.810907607834453E-14 2.21727985801505E-16
tp 6.889505434658025E-14 2.448329827849321E-13 1.295333467641005E-8 -2.137208369049259E-12 3.573838014746184E-9 4.454374881615843E-12
node 3.205306794462865E-17 -9.394507477500979E-16 -2.137208369049259E-12 8.731685148113558E-10 -8.645086520657805E-10 -2.214260609553326E-11
peri 3.281080611237214E-14 3.810907607834453E-14 3.573838014746184E-9 -8.645086520657805E-10 1.850425266780883E-9 2.310492482783753E-11
i 3.481553196399588E-17 2.21727985801505E-16 4.454374881615843E-12 -2.214260609553326E-11 2.310492482783753E-11 1.948739378024648E-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 16.0   n/a MPO412687  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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