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136917 (1998 HB127)
Classification: Main-belt Asteroid          SPK-ID: 2136917
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1072174934482052 3.5768e-08  
a 2.316338624722538 1.0549e-08 au
q 2.067986603402525 7.9732e-08 au
i 7.01579158229756 6.714e-06 deg
node 357.6033593076159 2.71e-05 deg
peri 254.1143245134187 4.4394e-05 deg
M 55.80763674183459 3.5476e-05 deg
tp 2458800.885248820682
(2019-Nov-13.38524882)
0.00012692 TDB
period 1287.660876180513
3.53
8.7967e-06
2.408e-08
d
yr
n .2795767167111886 1.9099e-09 deg/d
Q 2.564690646042552 1.1681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      8249 days (22.58 yr)  
   first obs. used      1998-04-01  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:48:53  

Additional Information
 Earth MOID = 1.06748 au 
 Jupiter MOID = 2.48587 au 
 T_jup = 3.563 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457549.5 (2016-Jun-10.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .106460803036761 3.5839e-08  
q 2.069422980782353 7.9762e-08 au
tp 2457513.153850303496
(2016-May-04.65385030)
0.00012836 TDB
node 357.6533928533798 2.7099e-05 deg
peri 254.0568268260282 4.4558e-05 deg
i 7.016086335800752 6.714e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      8249 days (22.58 yr)  
   first obs. used      1998-04-01  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:48:53  

Additional Information
 Jupiter MOID = 2.48587 au 
 T_jup = 3.563 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.284438667134868E-15 -2.84174848627782E-15 -1.571965718831255E-12 -8.81131772421381E-16 -4.627287029981258E-13 4.562878155029504E-15
q -2.84174848627782E-15 6.361983872225098E-15 3.507901799467198E-12 9.64848149350764E-16 1.033039083645961E-12 -1.011969742980445E-14
tp -1.571965718831255E-12 3.507901799467198E-12 1.647555337342868E-8 -3.302517564687569E-11 4.544018416750257E-9 -9.833686659873622E-12
node -8.81131772421381E-16 9.64848149350764E-16 -3.302517564687569E-11 7.343597344655924E-10 -7.372065114902669E-10 2.167829194135724E-12
peri -4.627287029981258E-13 1.033039083645961E-12 4.544018416750257E-9 -7.372065114902669E-10 1.98539346112181E-9 -4.940256463511118E-12
i 4.562878155029504E-15 -1.011969742980445E-14 -9.833686659873622E-12 2.167829194135724E-12 -4.940256463511118E-12 4.507794196712786E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO325423  

136917 (1998 HB127)          Discovered 1998-Apr-18 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 HB127 = 2005 EV67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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