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382755 (2003 ET44)
Classification: Main-belt Asteroid          SPK-ID: 2382755
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 .2900091578505659 9.083e-08  
a 2.414341603764671 1.2097e-08 au
q 1.714160428493294 2.2267e-07 au
i 5.169373849163383 7.2039e-06 deg
node 207.6031033862434 9.1287e-05 deg
peri 329.6819150171912 9.918e-05 deg
M 208.0781885698517 1.9763e-05 deg
tp 2459578.747992106797
(2021-Dec-30.24799211)
7.4509e-05 TDB
period 1370.239567306373
3.75
1.0299e-05
2.82e-08
d
yr
n .2627277803017253 1.9747e-09 deg/d
Q 3.114522779036048 1.5606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      5524 days (15.12 yr)  
   first obs. used      2003-03-07  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52915  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:53:51  

Additional Information
 Earth MOID = .720322 au 
 Jupiter MOID = 1.86393 au 
 T_jup = 3.454 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456941.5 (2014-Oct-11.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .289585220803842 9.1272e-08  
q 1.715597058846831 2.2395e-07 au
tp 2456837.156029289916
(2014-Jun-28.65602929)
8.0883e-05 TDB
node 207.6381711664695 9.1278e-05 deg
peri 329.6504919921982 9.917e-05 deg
i 5.168504042686466 7.2043e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      5524 days (15.12 yr)  
   first obs. used      2003-03-07  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52915  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:53:51  

Additional Information
 Jupiter MOID = 1.86393 au 
 T_jup = 3.454 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.330520542856207E-15 -2.042712333970777E-14 3.386766676671002E-12 -3.320966609561955E-13 2.142468619487445E-12 -2.156059515840897E-14
q -2.042712333970777E-14 5.015392663846338E-14 -8.471477183993342E-12 8.168258659452564E-13 -5.320934221746365E-12 5.23340678719324E-14
tp 3.386766676671002E-12 -8.471477183993342E-12 6.542061886288891E-9 -1.596242862098963E-10 3.149983793619763E-9 1.14976221944693E-11
node -3.320966609561955E-13 8.168258659452564E-13 -1.596242862098963E-10 8.331682127268159E-9 -8.380113063650727E-9 -2.294360775058378E-10
peri 2.142468619487445E-12 -5.320934221746365E-12 3.149983793619763E-9 -8.380113063650727E-9 9.834589976990236E-9 2.328915861195593E-10
i -2.156059515840897E-14 5.23340678719324E-14 1.14976221944693E-11 -2.294360775058378E-10 2.328915861195593E-10 5.190188615243503E-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 MPO440656  

382755 (2003 ET44)          Discovered 2003-Mar-07 by LONEOS at Anderson Mesa
Reference: Last Updated: 2014-01-21

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