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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2357051884132493 2.3087e-07  
a 2.289135276471515 2.6969e-08 au
q 1.749574214827381 5.1436e-07 au
i 25.48959158182365 1.3014e-05 deg
node 98.15137405501416 1.3432e-05 deg
peri 44.95881929794792 6.5558e-05 deg
M 138.7233745054968 3.9058e-05 deg
tp 2458713.024539889311
(2019-Aug-17.52453989)
0.00014056 TDB
period 1265.043949986196
3.46
2.2356e-05
6.121e-08
d
yr
n .2845750932241747 5.029e-09 deg/d
Q 2.828696338115649 3.3325e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56391  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 15:19:01  

Additional Information
 Earth MOID = .820857 au 
 Jupiter MOID = 2.4237 au 
 T_jup = 3.437 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.50   n/a E2021B25  

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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