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JPL Small-Body Database Browser
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305318 (2008 AU54)
Classification: Main-belt Asteroid          SPK-ID: 2305318
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01457269032819818 8.6889e-08  
a 3.091280096720114 4.0792e-08 au
q 3.046231829152889 2.7228e-07 au
i 8.998951960863124 7.6138e-06 deg
node 305.3260575915391 4.2665e-05 deg
peri 239.8904152352633 0.00024206 deg
M 324.4679175211927 0.0002416 deg
tp 2458796.440460399317
(2019-Nov-08.94046040)
0.0013327 TDB
period 1985.207756562708
5.44
3.9295e-05
1.076e-07
d
yr
n .181341221748661 3.5894e-09 deg/d
Q 3.136328364287339 4.1387e-08 au
  Orbit Determination Parameters
   # obs. used (total)      282  
   data-arc span      6730 days (18.43 yr)  
   first obs. used      2000-09-23  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55501  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:18:57  

Additional Information
 Earth MOID = 2.06253 au 
 Jupiter MOID = 1.90971 au 
 T_jup = 3.206 
[ 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 15.5   n/a MPO433967  

305318 (2008 AU54)          Discovered 2008-Jan-11 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 AU54 = 2003 EJ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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