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305789 (2009 DK71)
Classification: Main-belt Asteroid          SPK-ID: 2305789
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1258195013618772 7.7673e-08  
a 2.376493301954081 1.3546e-08 au
q 2.077484099712377 1.8759e-07 au
i 1.928377059774784 6.4635e-06 deg
node 44.34883307329487 0.00022083 deg
peri 112.5225094822294 0.00022247 deg
M 25.18138216106383 2.3794e-05 deg
tp 2458906.899022963503
(2020-Feb-27.39902296)
8.8633e-05 TDB
period 1338.145440850396
3.66
1.1441e-05
3.132e-08
d
yr
n .2690290524557769 2.3003e-09 deg/d
Q 2.675502504195785 1.5251e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      8120 days (22.23 yr)  
   first obs. used      1998-01-28  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51975  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:01:15  

Additional Information
 Earth MOID = 1.08775 au 
 Jupiter MOID = 2.30671 au 
 T_jup = 3.530 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457469.5 (2016-Mar-22.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262787396777259 7.789e-08  
q 2.076437538648562 1.8832e-07 au
tp 2457569.726165699538
(2016-Jun-30.22616570)
9.1176e-05 TDB
node 44.35505445885083 0.0002208 deg
peri 112.8562761403203 0.00022242 deg
i 1.928858723142152 6.4642e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      8120 days (22.23 yr)  
   first obs. used      1998-01-28  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51975  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:01:15  

Additional Information
 Jupiter MOID = 2.30671 au 
 T_jup = 3.530 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.066811875366246E-15 -1.46404378161063E-14 2.546110985046478E-12 7.649119074077137E-14 6.733223308798621E-13 -7.799052600139069E-15
q -1.46404378161063E-14 3.546370964180902E-14 -6.448286330394422E-12 -1.830974385580279E-13 -1.722051343611464E-12 1.880873094688644E-14
tp 2.546110985046478E-12 -6.448286330394422E-12 8.313126199675047E-9 3.907777961856109E-11 2.496309180470714E-9 -3.356023346642071E-12
node 7.649119074077137E-14 -1.830974385580279E-13 3.907777961856109E-11 4.875311980384904E-8 -4.871484288606746E-8 -6.887416548794165E-10
peri 6.733223308798621E-13 -1.722051343611464E-12 2.496309180470714E-9 -4.871484288606746E-8 4.946935958010024E-8 6.874374048519171E-10
i -7.799052600139069E-15 1.880873094688644E-14 -3.356023346642071E-12 -6.887416548794165E-10 6.874374048519171E-10 4.178570903305161E-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 17.5   n/a MPO460268  

305789 (2009 DK71)          Discovered 2009-Feb-18 by La Sagra at La Sagra
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 DK71 = 1998 BV35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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