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285263 (1998 QE2)
Classification: Amor [NEO, PHA]          SPK-ID: 2285263
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 140 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5717949098642675 1.1076e-08  
a 2.422990272880132 2.0942e-08 au
q 1.03753676819664 2.3753e-08 au
i 12.85881751990781 3.282e-06 deg
node 250.1484853735911 2.1484e-06 deg
peri 345.6442660847342 8.0942e-06 deg
M 305.2409822554126 3.9387e-06 deg
tp 2457810.045858288285
(2017-Feb-25.54585829)
1.7577e-05 JED
period 1377.608877785962
3.77
1.786e-05
4.89e-08
d
yr
n .2613223577497393 3.3879e-09 deg/d
Q 3.808443777563625 3.2917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1784  
   data-arc span      6346 days (17.37 yr)  
   first obs. used      1998-08-19  
   last obs. used      2016-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .34526  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 12:16:41  

Additional Information
 Earth MOID = .0334491 au 
 Jupiter MOID = 1.24382 au 
 T_jup = 3.239 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3 mag n/a MPO268323  
rotation period rot_per 4.749 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm]
[Hill, K. (2014) Minor Planet Bul. 41, 2-3.]

285263 (1998 QE2)          Discovered 1998-Aug-19 by LINEAR at Socorro
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ 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
1905-Aug-24 01:13 < 00:01 Jupiter 1.24389082038648 1.24389079773867 1.24389084304011 4.41505874979202 4.25803378383194 2417081.551016817 0.388823165644707 10.4219551430346 1.8641216205182 -63.11083608792 6583554.29754888 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
1911-Apr-09 07:21 < 00:01 Earth 0.381584775547609 0.381578440732161 0.381591110367809 16.521417569053 16.5209949203262 2419135.806385420 0.159221483170986 317.558842594378 4.56511839001283 15.3613024234926 2748615.28269241 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
1917-Feb-25 15:47 < 00:01 Jupiter 1.7386492926854 1.73864719810124 1.73865138726679 6.40880874616908 6.33233638498379 2421285.157514622 0.0588223476605702 27.5146688720134 1.69130201432477 -16.7155996567555 4798094.54686476 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
1926-Jul-09 08:58 < 00:01 Earth 0.478540599401276 0.478537959057442 0.478543239744869 21.631071261572 21.6308138558935 2424705.873886615 0.0450114712366857 130.298421124541 1.42321668786084 -6.07303902000575 4751191.79773319 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
1960-Apr-03 21:30 < 00:01 Earth 0.37863261460226 0.378625172615892 0.378640056602615 17.4400138618814 17.4396103535236 2437028.395735848 0.193164412642073 380.303674897577 5.17086561943671 18.4414670881 2921259.21823753 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
1975-Jun-08 01:24 < 00:01 Earth 0.0884353352757903 0.0884264339758417 0.0884442366552577 11.2417153984985 11.2390349607664 2442571.558576408 0.589106287216863 365.554012753177 1.37130769685281 22.834472801841 2654700.84204076 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
1977-Apr-05 05:07 < 00:01 Jupiter 1.697391713106 1.6973888921703 1.69739453404074 5.14967344795879 5.05184206818405 2443238.713063280 0.568505514303563 29.8984102959794 1.34885570222176 8.54353328863704 2469408.82027914 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
1988-Oct-01 08:08 < 00:01 Jupiter 1.23223606303712 1.23223548811466 1.23223663795999 4.42258869561171 4.26433085473622 2447435.838581183 0.326064022648009 5.57459565036781 1.78359032019268 -78.913901523072 7500226.54058778 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
1994-Jun-28 00:01 < 00:01 Earth 0.347600720992033 0.347596103851434 0.347605338127432 17.1886793302489 17.1882333713725 2449531.500704557 0.112931697737402 217.159719360729 1.15640910185339 -2.30411482724109 1524700.12378283 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2000-Apr-09 13:43 < 00:01 Jupiter 1.63387222919739 1.63387120045805 1.63387325793424 6.09964962435371 6.01405829699086 2451644.071325021 0.0617398226304111 12.5895831772231 1.85399129726358 -19.3150437517355 4792479.8754739 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2013-May-31 20:59 < 00:01 Earth 0.0391738543136708 0.039173807288595 0.0391739013387706 10.5801503031616 10.5737196332339 2456444.374551689 0.00287503112185707 1.63052892533289 0.857707064569481 -6.83081115834013 2516590.60513163 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2028-Jul-12 08:55 < 00:01 Earth 0.490264389676064 0.49026083283424 0.490267946517802 22.2168544234577 22.2166097978999 2461964.871579851 0.066533392518106 176.521128438337 1.79513396661692 -7.626329827805 4857069.83798429 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2047-Apr-04 13:04 < 00:01 Earth 0.41466393451317 0.414656780505985 0.414671088530657 18.5655207071631 18.5651745980724 2468805.044304406 0.163475223728708 365.604539725228 5.00803058152455 16.9525555488714 3098598.36945363 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2060-Jun-22 00:30 < 00:01 Jupiter 1.99995056101004 1.99994738825891 1.99995373375662 6.02440064014058 5.95368454141053 2473632.520931662 0.31506151803898 40.7832041214097 1.28223015086617 6.56945667621848 2736223.31511031 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2062-Jun-30 18:42 < 00:01 Earth 0.374853854217387 0.374845002509626 0.374862705911143 18.0063152905026 18.0059205330967 2474371.279162322 0.204641557881177 422.638176740358 1.42721447964726 -3.77419734837745 2197684.79583147 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2071-Dec-16 02:36 < 00:01 Jupiter 1.30855570766971 1.30855426735662 1.30855714798638 4.48280692801529 4.33600812999559 2477826.608153780 0.580096311569046 12.6995872715498 0.724030392822554 40.6521976030197 13176354.5386504 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2083-Jul-02 10:40 < 00:01 Jupiter 1.33588024594752 1.33587818521813 1.33588230667988 5.02415597230454 4.89632839861768 2482042.944304315 0.389911395463872 25.8257132039298 2.04881451511421 -28.9173629870769 3978570.43392311 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2085-Apr-30 05:29 < 00:01 Earth 0.213971193089499 0.213960201024588 0.213982185072135 12.1807828715448 12.1797605204354 2482710.728452380 0.521591240760634 467.262420297026 2.60977776595448 7.54306412392102 1186614.25310554 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2119-May-16 17:15 < 00:01 Earth 0.087582268812696 0.0875713069434555 0.0875932306117931 10.5995923792152 10.5967218246118 2495144.218906331 0.913644569947316 390.813068224979 2.33554629952078 -5.43399523992167 364166.541325357 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2134-Jun-22 18:27 < 00:01 Earth 0.208054552017077 0.208053389587012 0.208055714446288 14.1634412783909 14.162537045684 2500660.268678340 0.0410307032519662 50.9212819207021 1.28757214892224 -2.75862602235444 1028220.34449883 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2153-Apr-12 05:01 < 00:01 Earth 0.406647014271555 0.406632829713692 0.406661198839595 17.735796125147 17.7354266811585 2507528.709009041 0.324234277314331 705.859327111003 4.37339664380839 13.4177434746179 2732589.26165773 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2155-Mar-11 06:41 < 00:01 Jupiter 1.542363029819 1.54235949953089 1.54236656010326 4.94424299989645 4.83189351476056 2508226.778770432 0.896644821693129 36.849728696429 0.931860559489436 17.2469378512085 6028691.8094191 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2166-Sep-11 05:04 00:01 Jupiter 1.23598692636683 1.23598526172314 1.23598859104555 4.60190351211651 4.45049602205313 2512428.711382284 1.26641387137392 32.1049636052061 2.19260119666485 -50.110452102197 4969996.1369052 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2172-May-23 15:51 00:02 Earth 0.0711625170948851 0.0711455900206313 0.0711794508048947 9.99522317337633 9.99147646436059 2514510.160400972 2.0506495026252 923.045420803001 1.71868015080669 -51.9869338799716 3255391.56249304 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
2178-Mar-16 09:41 00:01 Jupiter 1.78291916826498 1.78290309947454 1.78293523699961 6.55812944793934 6.48528406448795 2516632.903290727 1.29817513309415 225.395755126312 2.01465784571715 -11.3639227660512 2827866.48771804 T 140 CATAB v2.0c-linF95 2016-Feb-26 12:16:45 2016-Feb-26 12:16
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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