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120021 (2003 AW40)
Classification: Main-belt Asteroid          SPK-ID: 2120021
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306558887178711 3.2704e-08  
a 2.247429350636314 7.7251e-09 au
q 1.953789471498298 7.4133e-08 au
i 4.491018612787779 3.924e-06 deg
node 170.2495822721889 4.6218e-05 deg
peri 265.3343772089088 4.9115e-05 deg
M 95.28365572940558 1.6451e-05 deg
tp 2458674.780762211030
(2019-Jul-10.28076221)
5.5624e-05 TDB
period 1230.630003712608
3.37
6.3451e-06
1.737e-08
d
yr
n .2925330919235996 1.5083e-09 deg/d
Q 2.54106922977433 8.7344e-09 au
  Orbit Determination Parameters
   # obs. used (total)      691  
   data-arc span      7909 days (21.65 yr)  
   first obs. used      1998-09-25  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53724  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:00:06  

Additional Information
 Earth MOID = .974912 au 
 Jupiter MOID = 2.69089 au 
 T_jup = 3.614 
[ show covariance matrix ]

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 16.5   n/a MPO417625  

120021 (2003 AW40)          Discovered 2003-Jan-07 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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