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447034 (2004 QW28)
Classification: Main-belt Asteroid          SPK-ID: 2447034
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1553895515487655 1.954e-07  
a 3.110748401033446 6.0273e-08 au
q 2.62737060201582 6.0462e-07 au
i 5.548380717752472 1.3596e-05 deg
node 223.6031642363496 0.00011065 deg
peri 120.9078227640779 0.00013233 deg
M 317.1194915352919 5.9811e-05 deg
tp 2459239.200419582616
(2021-Jan-24.70041958)
0.00033613 TDB
period 2003.990953616288
5.49
5.8243e-05
1.595e-07
d
yr
n .1796415294941149 5.221e-09 deg/d
Q 3.594126200051073 6.9638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      5388 days (14.75 yr)  
   first obs. used      2004-08-25  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47552  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:48:47  

Additional Information
 Earth MOID = 1.62573 au 
 Jupiter MOID = 1.87731 au 
 T_jup = 3.193 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a E2015T44  

447034 (2004 QW28)          Discovered 2004-Aug-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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