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305797 (2009 DU84)
Classification: Main-belt Asteroid          SPK-ID: 2305797
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1758154224454691 6.6315e-08  
a 3.021400748349785 3.8383e-08 au
q 2.490191899401611 2.1703e-07 au
i 5.518296718722548 7.4351e-06 deg
node 77.52161805695839 7.5852e-05 deg
peri 221.4929153894195 8.0063e-05 deg
M 303.8203646426932 2.7706e-05 deg
tp 2459299.855568253963
(2021-Mar-26.35556825)
0.00015068 TDB
period 1918.275259104372
5.25
3.6554e-05
1.001e-07
d
yr
n .1876685831667772 3.5761e-09 deg/d
Q 3.552609597297959 4.5132e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      7173 days (19.64 yr)  
   first obs. used      2000-09-05  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49738  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:01:29  

Additional Information
 Earth MOID = 1.47777 au 
 Jupiter MOID = 1.67579 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457536.5 (2016-May-28.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .174627736601648 6.6311e-08  
q 2.495651435054391 2.1706e-07 au
tp 2457380.594500318042
(2015-Dec-24.09450032)
0.00013533 TDB
node 77.52908354130263 7.5847e-05 deg
peri 221.5037941946966 8.012e-05 deg
i 5.517147771685452 7.4334e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      7173 days (19.64 yr)  
   first obs. used      2000-09-05  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49738  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:01:29  

Additional Information
 Jupiter MOID = 1.67579 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.397121522216658E-15 -1.427120211505922E-14 -2.045622065012062E-12 -4.21852610362274E-14 -1.609944197786504E-13 6.869633298292116E-16
q -1.427120211505922E-14 4.711311972310642E-14 7.653100858790577E-12 1.35996923816677E-13 7.343727931523126E-13 -1.272106293799505E-16
tp -2.045622065012062E-12 7.653100858790577E-12 1.831411724874496E-8 7.295761943533702E-11 3.533171126116747E-9 3.486520951046647E-12
node -4.21852610362274E-14 1.35996923816677E-13 7.295761943533702E-11 5.752754145048012E-9 -5.713507702055787E-9 -1.741783375503332E-10
peri -1.609944197786504E-13 7.343727931523126E-13 3.533171126116747E-9 -5.713507702055787E-9 6.419186997270667E-9 1.742677958856531E-10
i 6.869633298292116E-16 -1.272106293799505E-16 3.486520951046647E-12 -1.741783375503332E-10 1.742677958856531E-10 5.525527568715771E-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 16.1   n/a MPO471210  

305797 (2009 DU84)          Discovered 2009-Feb-26 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 DU84 = 2006 VF24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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