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305788 (2009 DF70)
Classification: Main-belt Asteroid          SPK-ID: 2305788
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1417413284940269 6.2156e-08  
a 2.422239613530721 2.3137e-08 au
q 2.078908152778018 1.5483e-07 au
i 1.590026463601016 1.0149e-05 deg
node 192.7234325779567 0.00029756 deg
peri 292.9932741399379 0.00030236 deg
M 20.12865286674448 4.898e-05 deg
tp 2458923.509650731183
(2020-Mar-15.00965073)
0.00018702 TDB
period 1376.968738060249
3.77
1.9729e-05
5.402e-08
d
yr
n .2614438440389982 3.746e-09 deg/d
Q 2.765571074283424 2.6417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      5441 days (14.90 yr)  
   first obs. used      2005-01-13  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67602  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:49:21  

Additional Information
 Earth MOID = 1.09486 au 
 Jupiter MOID = 2.2924 au 
 T_jup = 3.498 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456767.5 (2014-Apr-20.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411779273642283 6.2166e-08  
q 2.080730868098432 1.5476e-07 au
tp 2456170.088867798517
(2012-Aug-30.58886780)
0.0001809 TDB
node 192.741116489746 0.00029782 deg
peri 293.2201587558875 0.00030264 deg
i 1.58847518386012 1.0146e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      5441 days (14.90 yr)  
   first obs. used      2005-01-13  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67602  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:49:21  

Additional Information
 Jupiter MOID = 2.2924 au 
 T_jup = 3.498 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.864596828539566E-15 -9.543624415560924E-15 -1.613586697010897E-12 -3.318553165954054E-14 -4.829892610270624E-13 -3.439977039495069E-15
q -9.543624415560924E-15 2.395117663692604E-14 4.144134601128418E-12 8.131996694788265E-14 1.282206995942538E-12 8.780262170522448E-15
tp -1.613586697010897E-12 4.144134601128418E-12 3.272349474075908E-8 -5.937379817613512E-11 9.775078085632667E-9 1.116005629379046E-11
node -3.318553165954054E-14 8.131996694788265E-14 -5.937379817613512E-11 8.869932259564104E-8 -8.868176122609295E-8 1.08625223842867E-9
peri -4.829892610270624E-13 1.282206995942538E-12 9.775078085632667E-9 -8.868176122609295E-8 9.159094348538198E-8 -1.082488392935589E-9
i -3.439977039495069E-15 8.780262170522448E-15 1.116005629379046E-11 1.08625223842867E-9 -1.082488392935589E-9 1.029507190609931E-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 17.9   n/a MPO360530  

305788 (2009 DF70)          Discovered 2009-Feb-26 by CSS at Catalina
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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