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382632 (2002 QN21)
Classification: Main-belt Asteroid          SPK-ID: 2382632
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2247258069834222 9.0629e-08  
a 2.303908120034726 2.4358e-08 au
q 1.786160508544263 2.1e-07 au
i 23.22435856894715 1.1843e-05 deg
node 341.2371911983728 2.0805e-05 deg
peri 85.39376010073268 6.7959e-05 deg
M 322.746312739578 4.7999e-05 deg
tp 2459132.679140529285
(2020-Oct-10.17914053)
0.00017081 TDB
period 1277.309552149911
3.50
2.0257e-05
5.546e-08
d
yr
n .2818424080474964 4.4697e-09 deg/d
Q 2.821655731525189 2.9832e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      5715 days (15.65 yr)  
   first obs. used      2002-08-26  
   last obs. used      2018-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .614  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:32:07  

Additional Information
 Earth MOID = .948288 au 
 Jupiter MOID = 2.72339 au 
 T_jup = 3.450 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456953.5 (2014-Oct-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2252243169521598 8.9315e-08  
q 1.784904337402598 2.0664e-07 au
tp 2456576.606975967078
(2013-Oct-11.10697597)
0.00016333 TDB
node 341.3638391311331 2.0808e-05 deg
peri 85.04157076096763 6.7761e-05 deg
i 23.22761545811708 1.1841e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      5715 days (15.65 yr)  
   first obs. used      2002-08-26  
   last obs. used      2018-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .614  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:32:07  

Additional Information
 Jupiter MOID = 2.72339 au 
 T_jup = 3.450 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.977171071903137E-15 -1.837845365869034E-14 1.061286621735157E-11 -3.244620923290038E-13 4.293905139440865E-12 -1.906748243975404E-13
q -1.837845365869034E-14 4.269843330472619E-14 -2.433529558552462E-11 7.246453475223207E-13 -9.815028220975091E-12 4.498942936037252E-13
tp 1.061286621735157E-11 -2.433529558552462E-11 2.667605674047816E-8 -6.990238446370566E-10 1.059225550238693E-8 -3.383156600459322E-10
node -3.244620923290038E-13 7.246453475223207E-13 -6.990238446370566E-10 4.329745240225448E-10 -6.553704006591244E-10 -6.23209097968852E-11
peri 4.293905139440865E-12 -9.815028220975091E-12 1.059225550238693E-8 -6.553704006591244E-10 4.591591918741797E-9 -7.170519008913051E-11
i -1.906748243975404E-13 4.498942936037252E-13 -3.383156600459322E-10 -6.23209097968852E-11 -7.170519008913051E-11 1.402060770368066E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO288362  

382632 (2002 QN21)          Discovered 2002-Aug-26 by NEAT at Palomar
Reference: Last Updated: 2014-01-21

Alternate Designations
 2002 QN21 = 2009 QL20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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