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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1337683693453699 9.2702e-08  
a 2.4233585737907 3.0366e-08 au
q 2.099189849035596 2.1395e-07 au
i 2.73768257312143 9.4158e-06 deg
node 32.41778447624732 0.00017032 deg
peri 297.0585888197111 0.00017578 deg
M 218.5007841035707 5.3499e-05 deg
tp 2459142.097285138632
(2020-Oct-19.59728514)
0.00021195 TDB
period 1377.922989994658
3.77
2.5899e-05
7.091e-08
d
yr
n .2612627865374361 4.9107e-09 deg/d
Q 2.747527298545803 3.4428e-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 = 1.08901 au 
 Jupiter MOID = 2.57129 au 
 T_jup = 3.498 
[ 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 18.0   n/a MPO434345  

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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