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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01436092450548165 7.4916e-08  
a 3.09070144226627 3.8299e-08 au
q 3.046316112184901 2.2754e-07 au
i 8.999367246123597 6.9203e-06 deg
node 305.3289724606032 4.1991e-05 deg
peri 240.8684724222331 0.00021802 deg
M 36.06148807697711 0.00021486 deg
tp 2458801.695984465398
(2019-Nov-14.19598447)		 0.0011848 TDB
period 1984.650368273324
5.43		 3.689e-05
1.01e-07		 d
yr
n .1813921513607485 3.3717e-09 deg/d
Q 3.135086772347639 3.8849e-08 au
   Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      7206 days (19.73 yr)  
   first obs. used      2000-09-23  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53644  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:12:30  

Additional Information
 Earth MOID = 2.06218 au 
 Jupiter MOID = 1.90961 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 15.6   n/a MPO471205  

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

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