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305486 (2008 DC89)
Classification: Main-belt Asteroid          SPK-ID: 2305486
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09437646933700555 8.5909e-08  
a 2.969041989474727 4.3553e-08 au
q 2.688834289194784 2.679e-07 au
i 3.959412078289539 9.6114e-06 deg
node 14.39150383794676 0.00010004 deg
peri 118.404383297576 0.00012245 deg
M 177.5299961171632 6.1556e-05 deg
tp 2458079.006705916833
(2017-Nov-21.50670592)
0.00032339 TDB
period 1868.628362110737
5.12
4.1116e-05
1.126e-07
d
yr
n .1926546804594984 4.2391e-09 deg/d
Q 3.249249689754671 4.7663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      143  
   data-arc span      5460 days (14.95 yr)  
   first obs. used      2003-04-04  
   last obs. used      2018-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66955  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:32:25  

Additional Information
 Earth MOID = 1.70589 au 
 Jupiter MOID = 1.77993 au 
 T_jup = 3.253 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456931.5 (2014-Oct-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09243566812194956 8.2182e-08  
q 2.694106686407996 2.5233e-07 au
tp 2456199.674435167721
(2012-Sep-29.17443517)
0.00034705 TDB
node 14.73464592894695 9.9746e-05 deg
peri 116.1914468727577 0.00012448 deg
i 3.966406038792296 9.6187e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      143  
   data-arc span      5460 days (14.95 yr)  
   first obs. used      2003-04-04  
   last obs. used      2018-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66955  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:32:25  

Additional Information
 Jupiter MOID = 1.77993 au 
 T_jup = 3.253 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.753929198117573E-15 -2.051922478774531E-14 1.644624501146018E-11 -9.150071090214362E-14 3.637727610720814E-12 -5.212108296456422E-15
q -2.051922478774531E-14 6.367067757221417E-14 -5.160592191429944E-11 2.736667425452382E-13 -1.127852987459436E-11 1.683300917094946E-14
tp 1.644624501146018E-11 -5.160592191429944E-11 1.204415218102984E-7 -4.68747554966655E-10 2.585592507185413E-8 -1.064217081342676E-11
node -9.150071090214362E-14 2.736667425452382E-13 -4.68747554966655E-10 9.949271902819213E-9 -1.002583996138131E-8 -1.414353138538503E-10
peri 3.637727610720814E-12 -1.127852987459436E-11 2.585592507185413E-8 -1.002583996138131E-8 1.54957121906702E-8 1.389529292093019E-10
i -5.212108296456422E-15 1.683300917094946E-14 -1.064217081342676E-11 -1.414353138538503E-10 1.389529292093019E-10 9.252028088802096E-11

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 16.4   n/a MPO437356  

305486 (2008 DC89)          Discovered 2008-Feb-28 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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