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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306463204882684 3.2714e-08  
a 2.247243539621506 7.6926e-09 au
q 1.953649439928924 7.4142e-08 au
i 4.491159696575838 3.9242e-06 deg
node 170.249954069533 4.6217e-05 deg
peri 265.2822768631799 4.9114e-05 deg
M 153.8555573911814 1.6566e-05 deg
tp 2458674.622820534689
(2019-Jul-10.12282053)
5.561e-05 TDB
period 1230.477389426837
3.37
6.3181e-06
1.73e-08
d
yr
n .2925693743691543 1.5022e-09 deg/d
Q 2.540837639314088 8.6976e-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 = .974297 au 
 Jupiter MOID = 2.6912 au 
 T_jup = 3.615 
[ 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 16.65   n/a E2021B55  

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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