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379162 (2009 QY21)
Classification: Main-belt Asteroid          SPK-ID: 2379162
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2920032829218157 5.199e-08  
a 2.414239330416895 1.2978e-08 au
q 1.709273520176195 1.2825e-07 au
i 2.498030470426157 7.3613e-06 deg
node 97.16958961145689 0.00012555 deg
peri 208.5534698124317 0.00012653 deg
M 329.1912502938159 1.2783e-05 deg
tp 2459117.757459673314
(2020-Sep-25.25745967)
4.8743e-05 TDB
period 1370.152501642089
3.75
1.1048e-05
3.025e-08
d
yr
n .2627444752088182 2.1186e-09 deg/d
Q 3.119205140657594 1.6767e-08 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      7498 days (20.53 yr)  
   first obs. used      2000-02-05  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:06:24  

Additional Information
 Earth MOID = .694756 au 
 Jupiter MOID = 2.14952 au 
 T_jup = 3.457 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.8   n/a MPO434345  

379162 (2009 QY21)          Discovered 2005-Jun-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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