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305459 (2008 DU18)
Classification: Main-belt Asteroid          SPK-ID: 2305459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184886589431088 6.7084e-08  
a 3.104625813508351 3.2057e-08 au
q 2.736762864345588 2.085e-07 au
i 7.403177733362534 6.5959e-06 deg
node 154.7444173993033 5.3787e-05 deg
peri 84.84722026135755 6.3364e-05 deg
M 1.281147316035874 2.8981e-05 deg
tp 2458993.389356696134
(2020-May-23.88935670)
0.00016087 TDB
period 1998.077471147042
5.47
3.0947e-05
8.473e-08
d
yr
n .1801731940820762 2.7906e-09 deg/d
Q 3.472488762671113 3.5855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      8477 days (23.21 yr)  
   first obs. used      1997-02-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67014  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 19:59:41  

Additional Information
 Earth MOID = 1.73772 au 
 Jupiter MOID = 1.58538 au 
 T_jup = 3.197 
[ 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 15.9   n/a MPO433968  

305459 (2008 DU18)          Discovered 2008-Feb-27 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 DU18 = 2005 TU88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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