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JPL Small-Body Database Browser
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226735 (2004 QP9)
Classification: Main-belt Asteroid          SPK-ID: 2226735
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3154645017744431 5.4673e-08  
a 2.789442860137371 2.2369e-08 au
q 1.909472658035858 1.5817e-07 au
i 6.854727006053907 7.381e-06 deg
node 8.337411179497762 5.1083e-05 deg
peri 28.50984622534309 5.2107e-05 deg
M 17.00933344857687 1.2519e-05 deg
tp 2458520.099374850056
(2019-Feb-05.59937485)
5.8575e-05 TDB
period 1701.667213561599
4.66
2.0469e-05
5.604e-08
d
yr
n .2115572287759591 2.5448e-09 deg/d
Q 3.669413062238885 2.9426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      6466 days (17.70 yr)  
   first obs. used      2001-02-22  
   last obs. used      2018-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53197  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:47:18  

Additional Information
 Earth MOID = .918908 au 
 Jupiter MOID = 1.79982 au 
 T_jup = 3.245 
[ 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 16.3   n/a MPO352400  
diameter diameter 3.187 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226735 (2004 QP9)          Discovered 2004-Aug-21 by Siding Spring Survey at Siding Spring
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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