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JPL Small-Body Database Browser
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392243 (2009 WP68)
Classification: Main-belt Asteroid          SPK-ID: 2392243
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1134950933462808 9.2188e-08  
a 2.241373577963593 2.3769e-08 au
q 1.986988674508727 2.0438e-07 au
i 3.87947421789335 1.0625e-05 deg
node 154.82595933116 0.00012394 deg
peri 321.4315908102493 0.00013413 deg
M 245.0569762870894 4.5749e-05 deg
tp 2458991.836102831879
(2020-May-22.33610283)
0.00015591 TDB
period 1225.659396009542
3.36
1.9497e-05
5.338e-08
d
yr
n .2937194469948789 4.6722e-09 deg/d
Q 2.495758481418458 2.6467e-08 au
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      5209 days (14.26 yr)  
   first obs. used      2002-10-30  
   last obs. used      2017-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58143  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 11:44:48  

Additional Information
 Earth MOID = 1.00517 au 
 Jupiter MOID = 2.57386 au 
 T_jup = 3.623 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456751.5 (2014-Apr-04.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1129524834947744 9.2148e-08  
q 1.98830219334373 2.0417e-07 au
tp 2456539.275513766744
(2013-Sep-03.77551377)
0.00016038 TDB
node 154.8653534275033 0.00012389 deg
peri 321.2211348899442 0.00013423 deg
i 3.879618762027672 1.0627e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      5209 days (14.26 yr)  
   first obs. used      2002-10-30  
   last obs. used      2017-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58143  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 11:44:48  

Additional Information
 Jupiter MOID = 2.57386 au 
 T_jup = 3.623 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.491325096976481E-15 -1.871570682637406E-14 2.312472995143214E-12 -1.004742852358359E-13 7.541544407276903E-13 -2.256950962010942E-14
q -1.871570682637406E-14 4.168713733743683E-14 -5.868340000430628E-12 2.215450577076413E-13 -1.896223868220158E-12 4.985844076299498E-14
tp 2.312472995143214E-12 -5.868340000430628E-12 2.572156068372005E-8 9.747104341402727E-11 8.334874914921393E-9 -1.545068179883222E-11
node -1.004742852358359E-13 2.215450577076413E-13 9.747104341402727E-11 1.534977622091918E-8 -1.527750653198305E-8 -5.97671042192451E-11
peri 7.541544407276903E-13 -1.896223868220158E-12 8.334874914921393E-9 -1.527750653198305E-8 1.801722011135941E-8 5.482420560353302E-11
i -2.256950962010942E-14 4.985844076299498E-14 -1.545068179883222E-11 -5.97671042192451E-11 5.482420560353302E-11 1.129408356780517E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.0   n/a MPO455784  
diameter diameter 1.336 km 0.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

392243 (2009 WP68)          Discovered 2009-Nov-17 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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