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214971 (2008 AW4)
Classification: Main-belt Asteroid          SPK-ID: 2214971
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1233093935270336 5.2711e-08  
a 3.016689527246435 2.7444e-08 au
q 2.644703371182323 1.5849e-07 au
i 14.11451356701536 6.2352e-06 deg
node 128.7560528989299 2.4294e-05 deg
peri 285.1747172029583 3.5099e-05 deg
M 189.086678854277 2.6547e-05 deg
tp 2459909.089602977544
(2022-Nov-25.58960298)
0.00014669 TDB
period 1913.790305397159
5.24
2.6116e-05
7.15e-08
d
yr
n .1881083831309779 2.567e-09 deg/d
Q 3.388675683310546 3.0828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      7233 days (19.80 yr)  
   first obs. used      2000-07-06  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61316  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:13:09  

Additional Information
 Earth MOID = 1.69973 au 
 Jupiter MOID = 1.99577 au 
 T_jup = 3.190 
[ 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 15.7   n/a MPO433406  

214971 (2008 AW4)          Discovered 2008-Jan-07 by LUSS at Lulin
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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