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JPL Small-Body Database Browser
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379170 (2009 QJ55)
Classification: Main-belt Asteroid          SPK-ID: 2379170
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1337596104184021 9.2701e-08  
a 2.424763704793709 3.04e-08 au
q 2.100428256283821 2.1421e-07 au
i 2.736565885867318 9.412e-06 deg
node 32.39975363575405 0.0001704 deg
peri 296.7957216442888 0.00017589 deg
M 323.245639548975 5.4945e-05 deg
tp 2459141.302034531715
(2020-Oct-18.80203453)
0.00021239 TDB
period 1379.121601067165
3.78
2.5936e-05
7.101e-08
d
yr
n .2610357199259527 4.909e-09 deg/d
Q 2.749099153303597 3.4466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      78  
   data-arc span      8941 days (24.48 yr)  
   first obs. used      1994-10-09  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64464  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:37:17  

Additional Information
 Earth MOID = 1.09109 au 
 Jupiter MOID = 2.57079 au 
 T_jup = 3.497 
[ 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 17.9   n/a MPO471887  

379170 (2009 QJ55)          Discovered 2009-Aug-28 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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