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305752 (2009 DX7)
Classification: Main-belt Asteroid          SPK-ID: 2305752
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 .07936804840485209 5.9726e-08  
a 2.698763960802065 2.8294e-08 au
q 2.484568332127856 1.4999e-07 au
i 1.497483390574655 7.111e-06 deg
node 280.2232628742663 0.00024669 deg
peri 298.2502243119526 0.00025178 deg
M 148.2934041140885 4.9415e-05 deg
tp 2458333.439670435392
(2018-Aug-02.93967044)
0.00022171 TDB
period 1619.368845687212
4.43
2.5467e-05
6.972e-08
d
yr
n .2223088340613511 3.4961e-09 deg/d
Q 2.912959589476273 3.054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      7135 days (19.53 yr)  
   first obs. used      2000-02-14  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5672  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:58  

Additional Information
 Earth MOID = 1.47717 au 
 Jupiter MOID = 2.06131 au 
 T_jup = 3.363 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457268.5 (2015-Sep-03.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07839398991826846 5.9601e-08  
q 2.488698177469897 1.495e-07 au
tp 2456716.610387244574
(2014-Feb-28.11038724)
0.00022609 TDB
node 280.3195892931697 0.0002471 deg
peri 299.0848329241165 0.00025233 deg
i 1.495177412980484 7.1066e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      7135 days (19.53 yr)  
   first obs. used      2000-02-14  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5672  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:58  

Additional Information
 Jupiter MOID = 2.06131 au 
 T_jup = 3.363 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.552290081225295E-15 -8.806625278913485E-15 -2.970412437099501E-12 -2.110826015905239E-14 -7.120046068254408E-13 -1.055051044113593E-16
q -8.806625278913485E-15 2.23506589614209E-14 7.38125681911057E-12 5.912963581572587E-14 1.801429073339287E-12 5.346131412070645E-16
tp -2.970412437099501E-12 7.38125681911057E-12 5.111610274162868E-8 2.253156501764498E-11 1.159848158624777E-8 -2.679370779035459E-12
node -2.110826015905239E-14 5.912963581572587E-14 2.253156501764498E-11 6.10568435196921E-8 -6.102962105501127E-8 6.61301311604482E-10
peri -7.120046068254408E-13 1.801429073339287E-12 1.159848158624777E-8 -6.102962105501127E-8 6.366818374961107E-8 -6.616517108911631E-10
i -1.055051044113593E-16 5.346131412070645E-16 -2.679370779035459E-12 6.61301311604482E-10 -6.616517108911631E-10 5.050343846267718E-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 16.9   n/a MPO440440  

305752 (2009 DX7)          Discovered 2009-Feb-19 by Mt. Lemmon Survey at Mount Lemmon
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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