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452378 (2002 AD140)
Classification: Main-belt Asteroid          SPK-ID: 2452378
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2358059440577583 2.3174e-07  
a 2.287934159661266 2.6365e-08 au
q 1.748425685200347 5.1678e-07 au
i 25.49790773360627 1.3014e-05 deg
node 98.15302789256708 1.3426e-05 deg
peri 44.81244481603136 6.5487e-05 deg
M 81.96470644595939 3.9335e-05 deg
tp 2458712.701783879390
(2019-Aug-17.20178388)
0.00013996 TDB
period 1264.048421520664
3.46
2.1849e-05
5.982e-08
d
yr
n .2847992164468794 4.9228e-09 deg/d
Q 2.827442634122185 3.2582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      6765 days (18.52 yr)  
   first obs. used      2002-01-09  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56389  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:41:16  

Additional Information
 Earth MOID = .819492 au 
 Jupiter MOID = 2.42456 au 
 T_jup = 3.438 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457712.5 (2016-Nov-20.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2363418918550646 2.3159e-07  
q 1.746674448306387 5.1663e-07 au
tp 2457449.176943475737
(2016-Mar-01.67694348)
0.00014871 TDB
node 98.16387114899491 1.3428e-05 deg
peri 44.80572273706728 6.5345e-05 deg
i 25.49912608876671 1.3013e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      6765 days (18.52 yr)  
   first obs. used      2002-01-09  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56389  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:41:16  

Additional Information
 Jupiter MOID = 2.42456 au 
 T_jup = 3.438 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.3635109196958E-14 -1.195995192324053E-13 -3.187908497745736E-11 7.243632741588683E-13 -1.379552063708337E-11 -1.477957488918003E-12
q -1.195995192324053E-13 2.669116014340397E-13 7.144030873163011E-11 -1.617172516633661E-12 3.091372366661862E-11 3.299355229780891E-12
tp -3.187908497745736E-11 7.144030873163011E-11 2.211542755425394E-8 -4.455187654643359E-10 9.53473740113839E-9 8.966436812896582E-10
node 7.243632741588683E-13 -1.617172516633661E-12 -4.455187654643359E-10 1.80307764512559E-10 -3.464265433213007E-10 4.678473007290449E-11
peri -1.379552063708337E-11 3.091372366661862E-11 9.53473740113839E-9 -3.464265433213007E-10 4.270012063708691E-9 3.266893307956458E-10
i -1.477957488918003E-12 3.299355229780891E-12 8.966436812896582E-10 4.678473007290449E-11 3.266893307956458E-10 1.69344908391741E-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 17.4   n/a MPO357303  

452378 (2002 AD140)          Discovered 2002-Jan-13 by LINEAR at Socorro
Reference: Last Updated: 2016-01-04

Alternate Designations
 2002 AD140 = 2008 WJ138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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