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442523 (2011 WU95)
Classification: Apollo [NEO, PHA]          SPK-ID: 2442523
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 81 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .424746155272788 2.5946e-08  
a 1.666541588165729 3.6974e-08 au
q .9586844559901293 4.0269e-08 au
i 6.71616126831932 6.8061e-06 deg
node 67.70252738933448 3.4407e-05 deg
peri 242.3552444276856 3.6177e-05 deg
M 62.61058374242143 4.0755e-05 deg
tp 2458863.831662092417
(2020-Jan-15.33166209)
8.4502e-05 TDB
period 785.8192450199789
2.15
2.6151e-05
7.16e-08
d
yr
n .4581206203353384 1.5246e-08 deg/d
Q 2.374398720341328 5.2678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      1913 days (5.24 yr)  
   first obs. used      2011-11-30  
   last obs. used      2017-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44642  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:20:28  

Additional Information
 Earth MOID = .0473078 au 
 Jupiter MOID = 2.93208 au 
 T_jup = 4.140 
[ 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 19.5   n/a MPO402747  

442523 (2011 WU95)          Discovered 2011-Nov-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ 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
1914-Sep-16 17:06 00:26 Earth 0.134806282317877 0.134723749282576 0.134888994054419 10.1695283189 10.1675845576435 2420392.212422326 26.215420915279 8768.68480776196 16.3946038433256 61.98400421262 971927.194384173 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
1927-Jun-03 19:26 00:17 Earth 0.184915853717371 0.184713969888311 0.185117747273961 14.1863506813764 14.1853349401807 2425035.310025359 17.0221663834332 10287.1367201777 13.7231936266501 11.8773651136711 366292.319170037 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
1929-Oct-12 19:51 00:09 Earth 0.491679328124413 0.491484287235142 0.491874373385816 22.573421945553 22.5731818769766 2425897.326893830 8.78239782853771 9997.03793572508 16.2382242187728 13.3749962332981 941892.886553593 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
1942-Aug-10 05:47 01:14 Earth 0.120665597444567 0.120653157718755 0.120678062575692 7.23765724724706 7.23460568354251 2430581.741302813 74.106298193069 2831.3690626257 15.9264506948163 77.3559718477251 1140896.86837073 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
1955-May-24 06:50 00:06 Earth 0.368570352449877 0.368468232678704 0.368672472483438 19.5147960082397 19.5144255561363 2435251.785017542 5.64113072832225 5115.86356904301 13.796641040923 5.51144327833603 342070.529914768 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
1957-Oct-03 12:30 00:06 Earth 0.312914680613485 0.312828273874075 0.31300109118083 17.0777328861868 17.0772342743991 2436115.020982561 5.59278277340792 4641.64004061802 15.9318025499382 21.8325273232622 959386.132991312 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
1970-Jun-20 09:45 00:04 Earth 0.046532078491256 0.0465300973235264 0.0465340678023624 9.01056179287531 9.00420466036383 2440757.906353847 4.35336123795717 985.719071962221 13.8861805917915 -84.2821208832087 481203.994096793 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
1985-Sep-17 02:54 00:02 Earth 0.132444931108692 0.132438395959287 0.132451467491895 10.1184962369244 10.1165078371075 2446325.620785362 2.1658851009933 716.695450292977 16.2676123096619 62.9895745227823 972892.745955368 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
1998-Jun-01 21:22 < 00:01 Earth 0.220389774659552 0.220380648418662 0.220398900912332 15.2229390499008 15.2221448428534 2450966.389982141 0.681440023810099 462.200620595774 13.8662791460115 10.0808693819162 372202.34714186 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2000-Oct-11 09:35 < 00:01 Earth 0.451706875777238 0.451699155595845 0.451714595967465 21.3884580433099 21.388182253015 2451828.899124707 0.36706068248279 397.666427816804 16.0688509308453 14.529966676987 954837.690671517 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2013-Jul-21 20:10 < 00:01 Earth 0.109046393071838 0.109046036253223 0.109046749890689 7.24286427817399 7.23948991453451 2456495.340459028 0.217180629732377 19.7139691829022 5.57982426337445 26.6728487585116 1332778.91177782 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2026-May-21 19:43 < 00:01 Earth 0.422689581810199 0.422681574533374 0.422697589088321 21.0686086289958 21.0683094314402 2461182.321796580 0.417624183147092 401.007132216352 13.9968977534053 5.31558821582759 400708.371730985 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2028-Oct-01 00:54 < 00:01 Earth 0.263429268329781 0.263420789921362 0.263437746802529 15.5056777094775 15.5050253804356 2462045.537814453 0.642389812413839 470.049116354682 15.7953772141534 25.934753548008 955537.265735858 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2041-Jun-16 22:49 00:02 Earth 0.0536895869293166 0.0536829452549008 0.0536962316335761 9.80666223470358 9.80160033919543 2466687.450528368 2.47524061954417 717.761879503678 14.0947270632507 62.5444796351827 472348.85341622 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2056-Sep-06 23:16 00:10 Earth 0.116994283090902 0.116993716788521 0.116994854350916 8.12529071138197 8.12248731999594 2472248.469230552 9.86399796854749 1496.74335440371 16.9156533195547 -89.1113245584421 997858.036369311 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2069-May-27 03:30 00:04 Earth 0.326367828650852 0.326301054204872 0.326434603299029 18.2891858623028 18.2887394707772 2476893.646031386 3.98648635672386 3354.32744867752 14.023940473315 6.94688117475377 373843.576355835 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2069-Oct-27 22:54 00:03 Mars 0.0785911532762137 0.0785471744281772 0.0786351497766677 7.81632643654176 7.81586037551867 2477047.454469418 3.48835280568271 2874.27199063858 12.2392522026823 -40.256546937326 647395.048441765 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2071-Oct-07 04:58 00:04 Earth 0.344190154386397 0.344122677752729 0.344257632624547 18.116759039096 18.1163317335522 2477756.707268264 3.96788568914961 3563.05265804753 15.8115399302487 19.2059947314499 944324.477089081 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2084-Jun-21 22:22 00:18 Earth 0.0504434966502996 0.0504233868341773 0.0504637087345148 8.80005527381693 8.79405086904699 2482398.431870841 17.7740736187622 3721.53698670859 14.0438220498957 -74.3169266410854 504982.708115837 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2084-Nov-15 16:51 00:04 Mars 0.0525394097103348 0.0525143803499794 0.0525645373238247 8.49429864572805 8.49365712621369 2482545.202309457 4.49140803991827 3795.04161703414 11.8688940462273 -70.7599191243833 633580.16092009 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2099-Sep-22 06:35 00:39 Earth 0.146921681491036 0.146720475092492 0.147123341790703 11.1151670321635 11.1135353245062 2487968.774445970 39.0155088429189 16332.4004136844 15.8969368920999 52.0545126110399 962932.76507422 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2099-Dec-06 16:15 00:21 Mars 0.063469637976488 0.0632842643933367 0.0636557925147998 9.42770203562046 9.42722357594874 2488044.177404352 21.1936784023431 14459.2337796261 11.7226720598635 50.1602573645351 614367.189733477 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2112-Jun-08 10:14 00:46 Earth 0.145955953783796 0.145487424000673 0.146424639954365 13.0221701963322 13.0207682526991 2492610.926184688 46.4024971288344 24552.1653846811 14.1326437168231 17.8816585171038 420804.478972518 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2112-Oct-15 17:28 08:41 Earth 0.491842918011498 0.491440117592866 0.49224625080733 4.35095697937922 4.34971171003054 2492740.227442703 520.970648415591 32485.0565778588 11.8024358139759 -51.7427448451492 1777707.61498295 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2127-Sep-09 14:58 01:48 Earth 0.116132548203437 0.116122495782815 0.116143542103338 8.13209619133987 8.12927435871276 2498182.123624185 108.467916182314 16508.4083356336 16.756324325796 -88.1622833879916 1000546.40106251 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2140-Jun-04 04:25 00:35 Earth 0.21162406253865 0.211168445943179 0.212079721514315 14.9995871766253 14.998747754996 2502833.683752697 35.4767382842807 23206.4271761499 14.1530677471783 11.7530221156287 402229.279148215 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2142-Oct-15 17:01 00:20 Earth 0.473582356668954 0.473138669448148 0.474026066771201 22.1094623924843 22.109207919807 2503697.208712846 20.4498800652899 22726.2354933398 15.8419408503526 13.2068215993147 916735.569727325 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2155-Sep-07 04:58 01:47 Earth 0.116516637336949 0.116489534138714 0.116544361291345 7.87378389587823 7.87087906373424 2508406.706991263 106.95971633604 13483.9097161647 16.9340434771803 -84.1623008662108 1007777.97006915 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2168-Jun-06 05:42 00:31 Earth 0.182549963831048 0.182184877736353 0.182915096097051 14.1498783482551 14.148846790068 2513062.737614213 31.2886595990388 18773.3177710917 14.1903030400541 14.1260074625687 415190.991089218 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2183-Sep-19 09:11 00:38 Earth 0.123454601819542 0.123374867633852 0.123534690811852 9.69430250410573 9.69207592369788 2518645.882427462 38.0427835850303 11172.5519865469 15.8468617254873 69.1144187290128 985512.1831301 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
2196-Jun-14 02:14 00:17 Earth 0.0899979769952032 0.0898845875092302 0.090111428697723 11.2353289026603 11.2326935134922 2523297.593246249 17.061852095323 6776.07436977211 14.3183840128075 33.4277138459777 468329.620466913 T 81 CATAB v2.0e-lin.ifort 2017-Nov-26 19:57:09 2018-Dec-18 03:18
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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