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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 154 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5716411079484163 6.2016e-09  
a 2.423474541938929 2.1462e-08 au
q 1.038116869700179 1.2828e-08 au
i 12.85815778303771 2.0457e-06 deg
node 250.1114700719119 2.2461e-06 deg
peri 345.7138928192867 6.2749e-06 deg
M 54.25270074195498 1.0446e-05 deg
tp 2459188.829417266746
(2020-Dec-05.32941727)
3.725e-05 TDB
period 1378.021900505253
3.77
1.8306e-05
5.012e-08
d
yr
n .2612440338342995 3.4704e-09 deg/d
Q 3.80883221417768 3.3731e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1854  
   # delay obs. used      4  
   # Doppler obs. used      0  
   data-arc span      8362 days (22.89 yr)  
   first obs. used      1998-08-19  
   last obs. used      2021-07-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .2617  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-12 05:52:42  

Additional Information
 Earth MOID = .0343209 au 
 Jupiter MOID = 1.24494 au 
 T_jup = 3.239 
[ 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 17.2   n/a MPO427557  
rotation period rot_per 4.749 h n/a LCDB (Rev. 2020-October); 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 Bull. 41, 2-3.]

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

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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 01:14 < 00:01 Jupiter 1.24389078164732 1.2438906756637 1.243890887631 4.41505812591213 4.25803313284798 2417081.551135915 0.58331723107243 61.2950331834869 4.00548292704274 -86.1509445685171 7790977.77335448 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
1911-Apr-09 07:21 < 00:01 Earth 0.381582806323601 0.381576295242367 0.381589317423835 16.5213588174381 16.5209361650271 2419135.806556660 0.798891094110934 351.350735379969 1.86766991429988 22.4729245918108 10046268.1335687 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
1917-Feb-25 15:47 < 00:01 Jupiter 1.73864930865879 1.73864758907547 1.73865102824201 6.40880806462434 6.3323356963402 2421285.157564403 0.231884462031212 83.2323079681862 14.0426675206118 1.19291728582435 1403174.0059269 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
1926-Jul-09 08:58 < 00:01 Earth 0.478540990110841 0.478538558303279 0.478543421918566 21.6310823460736 21.6308249407371 2424705.873924338 0.194947244597677 122.138688414727 1.76507880952126 -6.86708700182863 4392711.93256959 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
1960-Apr-03 21:30 < 00:01 Earth 0.378635026972161 0.378627101256744 0.37864295272251 17.4400885840491 17.4396850799909 2437028.395543211 0.937967419402157 434.841753687574 1.91430758514548 24.6513918858586 10847067.9309843 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
1975-Jun-08 01:24 00:02 Earth 0.088432894103377 0.0884236997654905 0.0884420885874135 11.2416578637364 11.2389773382799 2442571.558254714 1.81120024037582 492.298693630296 1.33714044401805 21.3712650866591 3270861.66848225 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
1977-Apr-05 05:07 < 00:01 Jupiter 1.69739031648809 1.69738715446704 1.69739347850886 5.14967086190406 5.05183935131935 2443238.712892808 0.809300566428451 153.164776880661 10.4487621975546 -0.970886350860315 959538.566987983 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
1988-Oct-01 08:07 < 00:01 Jupiter 1.23223592529721 1.23223574515105 1.23223610544372 4.42258909647335 4.26433125334672 2447435.838530414 0.412781110768344 40.3068572794534 4.00809308668715 -76.2566297374329 11598418.1051962 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
1994-Jun-28 00:01 < 00:01 Earth 0.347599957935273 0.347595424963034 0.347604490907651 17.1886594623499 17.188213501979 2449531.500671068 0.439701448221677 226.290337213631 1.99006218159785 -2.72408020186245 1089839.41116819 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2000-Apr-09 13:43 < 00:01 Jupiter 1.63387290789266 1.63387174935328 1.63387406643194 6.09965201937046 6.01406076237618 2451644.071325936 0.164276097384805 55.9003213177447 15.6995225143087 1.34250565976177 2019763.67291432 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2013-May-31 20:59 < 00:01 Earth 0.0391738211139842 0.0391738055937296 0.0391738366342388 10.5801497633941 10.5737190876854 2456444.374561905 0.00415786275016318 1.67463386545685 0.77002413580395 -87.0996216821401 6648874.67869372 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2028-Jul-12 08:55 < 00:01 Earth 0.490265326488708 0.490261705212171 0.490268947765829 22.2168807959152 22.2166361711151 2461964.871653212 0.318828651934292 182.586457622099 1.83131397047371 -8.5108245318032 5400435.70181121 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2047-Apr-04 13:04 < 00:01 Earth 0.414661710634683 0.414654340376702 0.414669080914679 18.5654548059874 18.5651086938118 2468805.044480945 0.820838607141298 397.203435723466 1.95778440568127 22.2927502178135 10386652.1617505 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2060-Jun-22 00:30 < 00:01 Jupiter 1.9999505999238 1.99994772200241 1.99995347784495 6.02440150134778 5.95368541462399 2473632.521062252 0.642524188506632 140.853605901269 6.88795124662924 5.49405479280067 2183759.34043871 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2062-Jun-30 18:42 < 00:01 Earth 0.374856984590214 0.374847654733258 0.374866314448449 18.0064002092182 18.0060054569705 2474371.279386705 0.902677565716186 466.513104139758 1.48885868912975 -4.24928212512703 2435428.63546346 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2071-Dec-16 02:36 < 00:01 Jupiter 1.30855573667864 1.30855439924941 1.30855707410795 4.4828069862201 4.33600819430507 2477826.608334299 0.697729225782199 67.8648204273454 15.614901288091 -18.2945597237115 3576958.94880716 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2083-Jul-02 10:40 < 00:01 Jupiter 1.33587996892536 1.33587800292552 1.33588193492687 5.02415475468898 4.89632712307572 2482042.944513998 0.815610813148069 125.249284224834 18.9722399726613 42.8643347219169 3274081.17282337 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2085-Apr-30 05:30 00:02 Earth 0.213967215882291 0.21395565425216 0.213978777670719 12.1806874373309 12.1796650592063 2482710.728932559 2.02829357489587 645.463303968328 1.68976099307048 26.7285713823062 7799861.8248752 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2119-May-16 17:16 00:03 Earth 0.0875795347051661 0.0875683785613236 0.0875906908903635 10.5995678270774 10.5966971761957 2495144.219405024 2.90165774499508 564.351900967393 1.98356810669396 9.69580143674564 1099683.23740713 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2134-Jun-22 18:27 < 00:01 Earth 0.208054633757775 0.208053503862836 0.20805576365275 14.1634427645446 14.1625385322878 2500660.268701542 0.142473972060347 56.518748222224 1.56305287136734 -4.55032460375554 1482594.78796422 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2153-Apr-12 05:01 00:02 Earth 0.406650404006945 0.40663600872345 0.406664799359 17.7358946805196 17.7355252416636 2507528.708757633 1.59843919191884 764.611033368688 2.87445592686929 20.1492396581227 6014066.21458346 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2155-Mar-11 06:41 00:01 Jupiter 1.54236129860053 1.54235746458589 1.54236513261465 4.94423903336754 4.83188932905859 2508226.778602422 1.08450096069798 185.689587864113 9.69051906619194 8.00077786195593 1712625.60149881 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2166-Sep-11 05:04 00:02 Jupiter 1.23598746059101 1.23598569256228 1.23598922862739 4.6019058637189 4.45049852106368 2512428.711114387 1.81419956268677 180.068301952805 9.91434967839565 63.5520648978308 5628516.39749996 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2172-May-23 15:50 00:06 Earth 0.071166578510629 0.0711493505000811 0.071183809967068 9.99523449499297 9.99148800408339 2514510.159417985 5.99868174296432 1161.1253584786 0.732980836169136 -42.273635710325 7009230.30805464 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
2178-Mar-16 09:40 00:04 Jupiter 1.78292430153148 1.78290753220609 1.78294107087563 6.55814418683224 6.48529918024703 2516632.902619816 4.18523547740954 885.099538014935 25.9459119766632 21.8608237338072 2036947.92914252 T 154 CATAB v2.0g-lin.ifort 2021-Jul-12 05:52:47 2021-Jul-12 05:52
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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