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305459 (2008 DU18)
Classification: Main-belt Asteroid          SPK-ID: 2305459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184886589431088 6.7084e-08  
a 3.104625813508351 3.2057e-08 au
q 2.736762864345588 2.085e-07 au
i 7.403177733362534 6.5959e-06 deg
node 154.7444173993033 5.3787e-05 deg
peri 84.84722026135755 6.3364e-05 deg
M 1.281147316035874 2.8981e-05 deg
tp 2458993.389356696134
(2020-May-23.88935670)
0.00016087 TDB
period 1998.077471147042
5.47
3.0947e-05
8.473e-08
d
yr
n .1801731940820762 2.7906e-09 deg/d
Q 3.472488762671113 3.5855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      8477 days (23.21 yr)  
   first obs. used      1997-02-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67014  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 19:59:41  

Additional Information
 Earth MOID = 1.73772 au 
 Jupiter MOID = 1.58538 au 
 T_jup = 3.197 
[ 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 15.9   n/a MPO433968  

305459 (2008 DU18)          Discovered 2008-Feb-27 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
1930-Nov-07 19:54 00:04 Jupiter 1.93482025699449 1.93481795626936 1.93482255771973 2.76490089910961 2.60175329009159 2426288.329230055 4.0893248247632 146.604570371406 42.9003085766622 -71.1237560551301 997695.204790198 T 12 CATAB v2.0f-lin.ifort 2020-May-21 19:59:43 2020-May-21 19:59
1940-Sep-16 10:30 00:04 Jupiter 1.56463533215645 1.56463456375035 1.56463610056647 1.88076068037133 1.56670085229315 2429888.937633842 3.72747013122836 241.573325520191 93.8871164771543 63.7716563107192 982126.381764894 T 12 CATAB v2.0f-lin.ifort 2020-May-21 19:59:43 2020-May-21 19:59
1950-Aug-31 00:10 00:03 Jupiter 1.90819084128612 1.908188983656 1.90819269891982 3.59805067714645 3.47249092147626 2433524.506746116 2.99482372008636 179.398265154891 37.5928235716024 -66.5688632903355 1753152.50001417 T 12 CATAB v2.0f-lin.ifort 2020-May-21 19:59:43 2020-May-21 19:59
2001-Oct-09 20:02 < 00:01 Jupiter 1.85153964710605 1.85153864859477 1.85154064561671 2.38014065023921 2.17947951305797 2452192.334842156 0.870957714901661 75.1338684561054 23.9132497367945 81.2997329814966 1262234.69026153 T 12 CATAB v2.0f-lin.ifort 2020-May-21 19:59:43 2020-May-21 19:59
2011-Aug-17 19:40 < 00:01 Jupiter 1.57351658564317 1.57351588840161 1.57351728288427 2.05174216148564 1.77004173843 2455791.319723982 0.57470675662891 73.8903072402133 62.3648472719006 -83.8403089337179 1162165.926497 T 12 CATAB v2.0f-lin.ifort 2020-May-21 19:59:43 2020-May-21 19:59
2072-Sep-08 21:03 00:03 Jupiter 1.77493208716724 1.77493060684832 1.77493356748374 2.04337279411805 1.79469894174422 2478094.376786933 2.82458237577355 80.1540965905743 35.1451181139716 71.8290573425501 752504.857333378 T 12 CATAB v2.0f-lin.ifort 2020-May-21 19:59:43 2020-May-21 19:59
2082-Jul-17 16:22 00:03 Jupiter 1.60687603132329 1.60687488502351 1.6068771776269 2.28071536649813 2.03652033809395 2481693.181996554 3.23870353916319 214.16343274715 40.3412881111044 85.022821336999 1117004.64382237 T 12 CATAB v2.0f-lin.ifort 2020-May-21 19:59:43 2020-May-21 19:59
2143-Aug-08 01:02 00:06 Jupiter 1.70804848489423 1.70804607007617 1.70805089970345 1.77043219727359 1.46377207090045 2503993.542738444 6.37568058973321 168.354065394467 83.2338388237511 -29.4544258182088 549896.641369618 T 12 CATAB v2.0f-lin.ifort 2020-May-21 19:59:43 2020-May-21 19:59
2153-Jun-17 14:27 00:07 Jupiter 1.65980244591086 1.65979993061701 1.65980496123528 2.5578639926905 2.34990163330651 2507595.101765841 6.54427388139294 421.85058767507 30.9817814300918 -85.9688651937774 1300080.06728122 T 12 CATAB v2.0f-lin.ifort 2020-May-21 19:59:43 2020-May-21 19:59

Alternate Designations
 2008 DU18 = 2005 TU88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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