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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 152 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .57158170048781 6.3179e-09  
a 2.423772197211587 2.1641e-08 au
q 1.038388363134312 1.2898e-08 au
i 12.85875990587069 2.0619e-06 deg
node 250.1301879103125 2.2428e-06 deg
peri 345.7035166073711 6.3199e-06 deg
M 310.8126758839686 9.166e-06 deg
tp 2459188.815827078059
(2020-Dec-05.31582708)
3.7591e-05 TDB
period 1378.275784797276
3.77
1.8459e-05
5.054e-08
d
yr
n .2611959115663856 3.4982e-09 deg/d
Q 3.809156031288861 3.4011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1851  
   # delay obs. used      4  
   # Doppler obs. used      0  
   data-arc span      7831 days (21.44 yr)  
   first obs. used      1998-08-19  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .26106  
   source      ORB  
   producer      Giorgini  
   solution date      2020-Jan-28 15:47:21  

Additional Information
 Earth MOID = .0343518 au 
 Jupiter MOID = 1.24691 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. 2019-August); 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

[ 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 01:14 < 00:01 Jupiter 1.2438908497817 1.24389074341634 1.24389095614714 4.41505847343115 4.2580335010588 2417081.551133630 0.588908900059271 61.9985388486761 4.02256513685213 -86.2062789618149 7706915.84785784 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
1911-Apr-09 07:21 < 00:01 Earth 0.38158327700021 0.381576684026648 0.381589869993273 16.5213736738038 16.5209510222942 2419135.806514261 0.808070001171854 355.771276309735 1.86712836180167 22.4734855474157 10048818.3483384 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
1917-Feb-25 15:47 < 00:01 Jupiter 1.73864962530481 1.73864786891225 1.73865138169728 6.4088094314444 6.33233709325301 2421285.157575123 0.234357474078968 85.0146185086774 14.0740261710431 1.13875218938156 1373539.18628433 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
1926-Jul-09 08:58 < 00:01 Earth 0.478540632070881 0.478538152347086 0.478543111794866 21.6310726840264 21.6308152783824 2424705.873905047 0.198731266164179 124.547141916654 1.76904508108004 -6.87408443763167 4386554.99925837 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
1960-Apr-03 21:30 < 00:01 Earth 0.378634601670729 0.378626606707465 0.378642596669549 17.4400757802209 17.4396722754133 2437028.395577594 0.947132646865045 438.640456466756 1.91377676043856 24.6512265910493 10848580.7506201 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
1975-Jun-08 01:24 00:02 Earth 0.0884334179848915 0.0884241249457357 0.08844271117334 11.2416701896371 11.2389896830023 2442571.558327862 1.83057687327048 497.580442604987 1.33627530224146 21.370343741267 3273141.54156067 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
1977-Apr-05 05:07 < 00:01 Jupiter 1.69739049629474 1.69738731587386 1.69739367671524 5.14967083483483 5.05183933364399 2443238.712952686 0.81952704596789 154.058151266438 10.5793122102953 -1.03146471390088 956294.087289938 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
1988-Oct-01 08:08 < 00:01 Jupiter 1.23223599446722 1.23223581243615 1.23223617649871 4.42258908989393 4.26433125468109 2447435.838567803 0.419080071514951 40.8369253237782 4.01225068639807 -76.3023922249639 11503571.6955061 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
1994-Jun-28 00:01 < 00:01 Earth 0.347600121602445 0.347595529546298 0.347604713658711 17.188663901814 17.1882179417683 2449531.500682935 0.445605561185381 229.238536387633 1.9985420741981 -2.71709945082443 1082258.06478315 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2000-Apr-09 13:43 < 00:01 Jupiter 1.63387291129508 1.63387175160656 1.6338740709836 6.09965188591934 6.01406062672911 2451644.071334546 0.167269497284105 55.956106148048 15.9890507901824 1.39488253651498 2017885.59265708 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2013-May-31 20:59 < 00:01 Earth 0.0391738212847948 0.039173805735267 0.0391738368343227 10.5801497934445 10.5737191177832 2456444.374561913 0.00417086662124095 1.67224501750975 0.771490616707788 -87.0934078529464 6632693.04048584 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2028-Jul-12 08:55 < 00:01 Earth 0.490265163421892 0.490261499887137 0.490268826957261 22.2168763918539 22.216631766924 2461964.871644923 0.322421067859746 184.721269465657 1.84165505779614 -8.51938306657104 5376542.56269264 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2047-Apr-04 13:04 < 00:01 Earth 0.41466212173077 0.414654669587974 0.414669573896051 18.565467270543 18.565121158943 2468805.044449134 0.82900649309123 401.622960718043 1.95990256486181 22.2950133412224 10370021.3718926 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2060-Jun-22 00:30 < 00:01 Jupiter 1.9999506059882 1.9999476809442 1.99995353103196 6.02440091404126 5.95368482016435 2473632.521062960 0.647310782790953 143.170027358324 6.9068051491085 5.529849408802 2182949.0112361 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2062-Jun-30 18:42 < 00:01 Earth 0.374856356321755 0.374846935726183 0.374865776918626 18.0063832468513 18.0059884935703 2474371.279345149 0.911471617209944 471.051072177361 1.49025197776934 -4.25066015533447 2434510.77133866 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2071-Dec-16 02:36 < 00:01 Jupiter 1.30855577209159 1.30855441452965 1.30855712965352 4.48280690187415 4.33600811031885 2477826.608308721 0.703047104237283 68.803883575921 15.7267058692336 -18.039303893433 3514594.1632633 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2083-Jul-02 10:40 < 00:01 Jupiter 1.33588006867945 1.33587807387003 1.33588206349061 5.02415503512042 4.89632741978282 2482042.944473646 0.822476880872179 126.742419003316 19.1517491944267 42.689070674346 3232695.58542341 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2085-Apr-30 05:30 00:02 Earth 0.213968116055433 0.213956443333553 0.213979788938688 12.1807092100525 12.1796868380572 2482710.728825508 2.04715736418147 651.672525984853 1.69177975046729 26.72981773079 7798003.9949769 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2119-May-16 17:16 00:03 Earth 0.0875800662202698 0.0875687931802245 0.0875913393025812 10.5995727709646 10.5967021388467 2495144.219308748 2.93163629369909 570.272220589335 2.00240615343917 9.69987534802735 1089898.35902897 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2134-Jun-22 18:27 < 00:01 Earth 0.208054638172672 0.208053503541583 0.208055772803808 14.1634430932926 14.1625388610761 2500660.268701199 0.143050578575152 56.7566166076082 1.56390514214552 -4.56250706372532 1484850.41660801 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2153-Apr-12 05:01 00:02 Earth 0.406650143120142 0.406635581081721 0.406664705228694 17.7358879621561 17.7355185229233 2507528.708773646 1.61793299056083 773.450279981357 2.89481140221805 20.1455988216711 5968095.910845 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2155-Mar-11 06:41 00:01 Jupiter 1.54236164012915 1.54235777558063 1.54236550467715 4.94423963386562 4.83188996805849 2508226.778619370 1.09820879662411 187.135244621488 9.80515788011534 7.94468017336119 1682577.46014525 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2166-Sep-11 05:04 00:02 Jupiter 1.23598744823588 1.23598566456294 1.23598923191661 4.601905730808 4.45049838124123 2512428.711118032 1.83538958003847 182.092555986589 10.0129570603177 63.6176531756938 5576319.34066959 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2172-May-23 15:50 00:06 Earth 0.0711666265488346 0.0711492093861064 0.0711840472336466 9.99523496595133 9.9914884777484 2514510.159405174 6.06479657957206 1173.88303691589 0.738612377151568 -42.2740640756419 6949173.00877692 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
2178-Mar-16 09:40 00:04 Jupiter 1.78292398289764 1.78290705099937 1.78294091481506 6.55814333107579 6.4852983013822 2516632.902614591 4.23101299827831 893.889975746376 26.2308760564689 21.8939816577645 2017612.92193707 T 152 CATAB v2.0f-lin.ifort 2020-Jan-28 15:53:39 2020-Jan-28 15:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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