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JPL Small-Body Database Browser
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154818 (2004 QA9)
Classification: Main-belt Asteroid          SPK-ID: 2154818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1401263621814865 7.214e-08  
a 3.161143286929139 3.6485e-08 au
q 2.718183777797332 2.4199e-07 au
i 5.992547170710982 5.5641e-06 deg
node 134.7090875355396 6.207e-05 deg
peri 254.5948803987525 6.5173e-05 deg
M 276.5396828506879 2.4655e-05 deg
tp 2459476.429066658417
(2021-Sep-18.92906666)
0.0001461 TDB
period 2052.885369348757
5.62
3.5541e-05
9.731e-08
d
yr
n .1753629332524319 3.036e-09 deg/d
Q 3.604102796060947 4.1597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      9418 days (25.79 yr)  
   first obs. used      1993-10-11  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57716  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:34:30  

Additional Information
 Earth MOID = 1.73096 au 
 Jupiter MOID = 1.8751 au 
 T_jup = 3.181 
[ 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 15.2   n/a MPO436783  

154818 (2004 QA9)          Discovered 2004-Aug-19 by Siding Spring Survey at Siding Spring
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2004 QA9 = 1993 TY48 = 1996 GQ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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