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226737 (2004 QA28)
Classification: Main-belt Asteroid          SPK-ID: 2226737
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09556132263450849 6.5338e-08  
a 2.77177384992962 2.4005e-08 au
q 2.506899474786602 1.8211e-07 au
i 3.827703369819978 7.2929e-06 deg
node 157.5959544010471 7.9705e-05 deg
peri 181.1353457976309 8.4459e-05 deg
M 147.3793401036142 2.8901e-05 deg
tp 2458310.468012768821
(2018-Jul-10.96801277)
0.0001331 TDB
period 1685.524682283014
4.61
2.1896e-05
5.995e-08
d
yr
n .2135833451648933 2.7746e-09 deg/d
Q 3.036648225072637 2.6298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      8874 days (24.30 yr)  
   first obs. used      1995-09-19  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64329  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 01:38:05  

Additional Information
 Earth MOID = 1.4978 au 
 Jupiter MOID = 2.2997 au 
 T_jup = 3.327 
[ 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 16.6   n/a MPO454628  

226737 (2004 QA28)          Discovered 2004-Aug-23 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2004 QA28 = 2002 CK279 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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