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JPL Small-Body Database Browser
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172439 (2003 QP40)
Classification: Main-belt Asteroid          SPK-ID: 2172439
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1390597325659207 7.1295e-08  
a 2.299351344738215 1.2154e-08 au
q 1.979604161663829 1.6369e-07 au
i 6.654005184453788 6.1987e-06 deg
node 318.5307708345671 3.8386e-05 deg
peri 354.2081667767048 4.16e-05 deg
M 299.4454968780789 1.6883e-05 deg
tp 2459214.715245973252
(2020-Dec-31.21524597)
6.0375e-05 TDB
period 1273.521944273931
3.49
1.0097e-05
2.764e-08
d
yr
n .2826806413651911 2.2413e-09 deg/d
Q 2.619098527812602 1.3844e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      8206 days (22.47 yr)  
   first obs. used      1996-08-17  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54021  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:02:49  

Additional Information
 Earth MOID = .965702 au 
 Jupiter MOID = 2.63857 au 
 T_jup = 3.571 
[ 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 16.6   n/a MPO376214  
diameter diameter 1.429 km 0.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.238   0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172439 (2003 QP40)          Discovered 2003-Aug-22 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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