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JPL Small-Body Database Browser
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376417 (2012 GQ21)
Classification: Main-belt Asteroid          SPK-ID: 2376417
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0482686059237107 4.4111e-08  
a 2.183220390484753 2.1201e-08 au
q 2.077839385811835 9.8182e-08 au
i 7.626501916837811 5.7027e-06 deg
node 45.92711887370416 5.5032e-05 deg
peri 232.6941249294013 0.00010626 deg
M 116.0934947153752 8.9957e-05 deg
tp 2458620.529238580992
(2019-May-17.02923858)
0.00029535 TDB
period 1178.269931887292
3.23
1.7163e-05
4.699e-08
d
yr
n .305532705416127 4.4505e-09 deg/d
Q 2.288601395157672 2.2225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      7897 days (21.62 yr)  
   first obs. used      1997-11-21  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60244  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:55:39  

Additional Information
 Earth MOID = 1.07127 au 
 Jupiter MOID = 2.74475 au 
 T_jup = 3.666 
[ 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 17.4   n/a MPO494942  

376417 (2012 GQ21)          Discovered 2010-Sep-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-10-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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