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JPL Small-Body Database Browser
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379172 (2009 QY57)
Classification: Main-belt Asteroid          SPK-ID: 2379172
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2121719179189961 5.189e-08  
a 2.441255713016207 3.9766e-08 au
q 1.923289806254852 1.3331e-07 au
i 8.796185138989404 9.9623e-06 deg
node 353.1680938073618 6.1813e-05 deg
peri 321.7107304941521 6.9562e-05 deg
M 317.3355566173234 3.7254e-05 deg
tp 2459165.613247404332
(2020-Nov-12.11324740)
0.00014635 TDB
period 1393.215622958174
3.81
3.4042e-05
9.32e-08
d
yr
n .2583950352463192 6.3136e-09 deg/d
Q 2.959221619777562 4.8203e-08 au
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      5024 days (13.75 yr)  
   first obs. used      2004-02-26  
   last obs. used      2017-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63986  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-07 18:36:48  

Additional Information
 Earth MOID = .918984 au 
 Jupiter MOID = 2.37962 au 
 T_jup = 3.454 
[ 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 17.2   n/a MPO434345  

379172 (2009 QY57)          Discovered 2009-Aug-16 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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