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487283 (2014 QL21)
Classification: Main-belt Asteroid          SPK-ID: 2487283
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 .0539966250621297 1.1145e-07  
a 3.073483901723959 8.526e-08 au
q 2.90752614384808 3.6672e-07 au
i 7.774740948439407 7.9489e-06 deg
node 239.7719323899763 9.3316e-05 deg
peri 98.24660106217759 0.00013247 deg
M 28.65960992966544 8.9928e-05 deg
tp 2458843.820341842939
(2019-Dec-26.32034184)
0.00049101 TDB
period 1968.0894846429
5.39
8.1894e-05
2.242e-07
d
yr
n .1829185119930257 7.6114e-09 deg/d
Q 3.23944165959984 8.9864e-08 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      3608 days (9.88 yr)  
   first obs. used      2009-10-17  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:19:02  

Additional Information
 Earth MOID = 1.91217 au 
 Jupiter MOID = 1.98684 au 
 T_jup = 3.214 
[ 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 16.7   n/a MPO495387  

487283 (2014 QL21)          Discovered 2012-Mar-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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