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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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1952-Mar-07 19:12 00:04 Jupiter 1.94039994249293 1.94039898432509 1.94040090066144 3.0291392888172 2.88143119383003 2434079.300210358 4.09494862922993 187.698124845615 36.776503184137 83.7703684764317 1829851.19894696 T 9 CATAB v2.0e-lin.ifort 2019-Jul-14 10:18:59 2019-Jul-14 10:19
1962-Jan-30 11:16 00:03 Jupiter 1.94169061787359 1.94168963517534 1.94169160057238 4.23376699858174 4.12944599386095 2437694.969494212 3.04774259843645 138.280492594366 38.0665632306243 80.8953509233209 1583814.43096934 T 9 CATAB v2.0e-lin.ifort 2019-Jul-14 10:18:59 2019-Jul-14 10:19
2012-Jun-29 21:59 < 00:01 Jupiter 1.99640533384974 1.99640461602722 1.99640605167237 3.462672519121 3.33789654365291 2456108.415945771 0.326285784078107 69.5699971978577 23.1991705005192 -69.754776857534 2541379.73145453 T 9 CATAB v2.0e-lin.ifort 2019-Jul-14 10:18:59 2019-Jul-14 10:19
2022-Apr-26 19:58 < 00:01 Jupiter 1.90444695490109 1.90444607332939 1.90444783647268 3.58625994709613 3.46002018570293 2459696.331766004 0.563223996933782 167.268895474937 35.9068329670762 86.9019218113098 1666114.9187909 T 9 CATAB v2.0e-lin.ifort 2019-Jul-14 10:18:59 2019-Jul-14 10:19
2082-Aug-15 22:34 00:04 Jupiter 1.93932443991042 1.93932352944123 1.93932535037982 3.01086124113936 2.86212545858394 2481722.440068792 4.39248788890845 199.501867643792 35.2668646433079 86.073582130909 1747359.53642633 T 9 CATAB v2.0e-lin.ifort 2019-Jul-14 10:18:59 2019-Jul-14 10:19
2092-Jul-09 15:59 00:05 Jupiter 1.95874063241755 1.95873942135161 1.95874184348427 4.2762918465826 4.17394388586536 2485338.166171554 4.50107413001576 143.439875628024 44.1293230152586 76.9471155461212 1403164.3515692 T 9 CATAB v2.0e-lin.ifort 2019-Jul-14 10:18:59 2019-Jul-14 10:19
2142-Dec-11 09:30 00:08 Jupiter 1.98539312551488 1.98539209906016 1.98539415197614 3.44138153042331 3.31509466434914 2503753.895567487 7.96703365128777 312.049327593822 33.2562642433813 89.6023427622164 2007579.28027117 T 9 CATAB v2.0e-lin.ifort 2019-Jul-14 10:18:59 2019-Jul-14 10:19
2152-Oct-06 14:58 00:08 Jupiter 1.91487535847445 1.91487446923711 1.9148762477118 3.59269216965591 3.46738527272995 2507341.123351798 8.46740075406169 623.760114687622 36.0767606007978 87.7792127492513 1582230.07487494 T 9 CATAB v2.0e-lin.ifort 2019-Jul-14 10:18:59 2019-Jul-14 10:19

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