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487385 (2014 QU298)
Classification: Main-belt Asteroid          SPK-ID: 2487385
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05049484737463672 8.8677e-08  
a 3.141503275954221 1.1389e-07 au
q 2.982873547507992 2.5105e-07 au
i 1.209038728422113 1.0893e-05 deg
node 196.2634800900743 0.00052697 deg
peri 193.2843040430923 0.0005447 deg
M 317.2578234479719 0.00013214 deg
tp 2459241.967583213892
(2021-Jan-27.46758321)
0.00074452 TDB
period 2033.783418848296
5.57
0.00011059
3.028e-07
d
yr
n .1770099985395019 9.6255e-09 deg/d
Q 3.300133004400451 1.1964e-07 au
  Orbit Determination Parameters
   # obs. used (total)      83  
   data-arc span      4039 days (11.06 yr)  
   first obs. used      2006-01-31  
   last obs. used      2017-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54799  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Jul-11 15:52:38  

Additional Information
 Earth MOID = 1.98754 au 
 Jupiter MOID = 1.95977 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457014.5 (2014-Dec-23.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05420758131198401 9.7428e-08  
q 2.972535246444707 2.7894e-07 au
tp 2457179.041607710049
(2015-Jun-05.54160771)
0.0006742 TDB
node 196.3591242699927 0.00052565 deg
peri 188.6142506545353 0.00053952 deg
i 1.206827348960393 1.0943e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      83  
   data-arc span      4039 days (11.06 yr)  
   first obs. used      2006-01-31  
   last obs. used      2017-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54799  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Jul-11 15:52:38  

Additional Information
 Jupiter MOID = 1.95977 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.492274138632527E-15 -2.552974018876972E-14 -4.284604405434033E-11 1.767736221314512E-14 -7.846358994645654E-12 -4.782627106697449E-16
q -2.552974018876972E-14 7.781028892680489E-14 1.181472997034275E-10 -6.056117121121207E-14 2.149754236113283E-11 3.363393568435278E-15
tp -4.284604405434033E-11 1.181472997034275E-10 4.545405100796498E-7 2.947442816864895E-10 8.219029687970093E-8 -2.49154950600426E-12
node 1.767736221314512E-14 -6.056117121121207E-14 2.947442816864895E-10 2.76308029139121E-7 -2.761925598883113E-7 -3.585372621658387E-9
peri -7.846358994645654E-12 2.149754236113283E-11 8.219029687970093E-8 -2.761925598883113E-7 2.910857564859708E-7 3.584091350717322E-9
i -4.782627106697449E-16 3.363393568435278E-15 -2.49154950600426E-12 -3.585372621658387E-9 3.584091350717322E-9 1.197408237877469E-10

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 16.8   n/a MPO413572  

487385 (2014 QU298)          Discovered 2009-Sep-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2017-03-14

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