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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2917475130596714 5.2129e-08  
a 2.41390122392648 3.4446e-08 au
q 1.709651545074232 1.3056e-07 au
i 2.498037169979049 7.9333e-06 deg
node 97.16953824390468 0.0002347 deg
peri 208.5693901525324 0.00023741 deg
M 224.0354787779753 4.2496e-05 deg
tp 2459117.869432868352
(2020-Sep-25.36943287)
0.00017157 TDB
period 1369.864683511538
3.75
2.9322e-05
8.028e-08
d
yr
n .2627996796568029 5.6252e-09 deg/d
Q 3.118150902778727 4.4496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      6518 days (17.85 yr)  
   first obs. used      2000-02-05  
   last obs. used      2017-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58214  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:24:49  

Additional Information
 Earth MOID = .694351 au 
 Jupiter MOID = 2.14814 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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