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JPL Small-Body Database Browser
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338847 (2003 XZ21)
Classification: Mars-crossing Asteroid          SPK-ID: 2338847
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3236570904583569 9.6538e-08  
a 2.107204517706889 1.6519e-08 au
q 1.425192834505172 2.1021e-07 au
i 5.099302652303074 3.3184e-06 deg
node 122.3980340182543 5.9465e-05 deg
peri 193.3577692082126 6.0968e-05 deg
M 224.7928757475522 1.291e-05 deg
tp 2459420.119377314509
(2021-Jul-24.61937731)
3.8015e-05 TDB
period 1117.270829243959
3.06
1.3138e-05
3.597e-08
d
yr
n .3222137288267044 3.7889e-09 deg/d
Q 2.789216200908606 2.1865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      585  
   data-arc span      5497 days (15.05 yr)  
   first obs. used      2003-12-14  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46456  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:17:43  

Additional Information
 Earth MOID = .412111 au 
 Jupiter MOID = 2.52297 au 
 T_jup = 3.669 
[ 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 16.8   n/a MPO353079  

338847 (2003 XZ21)          Discovered 2003-Dec-14 by NEAT at Palomar
Reference: 20121029/Numbers.arcLast Updated: 2012-11-08

[ 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
1911-Jun-12 18:34 00:05 Mars 0.063425570127783 0.0634137473212662 0.0634373934602808 3.85884079239116 3.85767088688539 2419200.273677715 5.11148860139223 656.261372407453 21.2156375937331 -26.0901527179888 178157.477198883 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
1917-Aug-30 18:49 00:02 Earth 0.499060950922053 0.49905374203955 0.499068163685599 2.63036348589259 2.62833295004412 2421471.283911516 1.79533727798374 2226.32976615746 13.8877975347099 -80.724307816013 1014252.17664321 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
1920-Aug-06 11:03 00:02 Earth 0.411405764875527 0.411404496856823 0.411407033008705 2.6125615686534 2.61008139755642 2422542.960234457 1.69014582844635 463.250987790931 42.1112679430301 84.12039885851 1062501.10456011 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
1923-Jul-15 11:15 00:02 Earth 0.469514254079361 0.469508524865642 0.469519984052429 2.821783414371 2.81977156831656 2423615.968555568 1.69526037641259 984.819223253635 9.76174106281524 -73.1574315573145 1493332.53299488 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
1969-Aug-30 05:44 00:01 Earth 0.489015231302247 0.489010898693285 0.489019566179442 2.5636999872768 2.56157379323509 2440463.739106608 1.06001347794341 1678.22445009222 12.4224695221573 -82.6234269323363 1007106.39903065 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
1972-Aug-06 04:15 < 00:01 Earth 0.412088871803114 0.412088089232404 0.412089654386098 2.61896422826426 2.61649422943352 2441535.676817842 0.936707031984584 285.898208777701 35.8220463578711 86.8655689186218 1101542.15551096 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
1975-Jul-14 00:58 < 00:01 Earth 0.481994141741719 0.481990897826171 0.481997385834779 2.87205472807777 2.87012931691869 2442607.540444848 0.922064859432388 489.885595263104 10.6362053145562 -70.7743070502694 1502817.50698528 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2021-Aug-23 00:12 < 00:01 Earth 0.451469153426751 0.451468311767281 0.451469995254108 2.49187391942493 2.48950437559818 2459449.508470321 0.104103423081121 446.435283971942 8.80484410880065 -84.7345178646818 1043605.6332721 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2024-Jul-30 08:30 < 00:01 Earth 0.418651073790834 0.418650531595629 0.418651616004006 2.67125667552967 2.66887304831208 2460521.854269140 0.129768298951355 145.540816142167 7.81184846201184 -79.7582760213044 1410127.26422715 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2073-Aug-20 02:50 00:01 Earth 0.436285801237064 0.43628342662598 0.436288176094709 2.48816022402576 2.48570451275993 2478439.618150409 1.11598474514466 553.930814910484 34.7205689892744 -78.1709049395304 1092911.0676998 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2076-Jul-26 18:53 00:01 Earth 0.430584655497702 0.430581989597188 0.430587322037623 2.71024105849441 2.7079568857967 2479511.286716730 1.10087354293502 839.779479141129 7.7678304744999 -80.9147171930978 1472490.86868659 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2116-May-06 19:25 00:08 Mars 0.090214366571559 0.0902017418290865 0.090226991336685 3.70489688840553 3.70404023613733 2494039.309337060 7.98298409929925 633.575696988402 23.5590965875055 -6.55219962452534 54694.5965687096 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2125-Aug-17 11:11 00:02 Earth 0.423005569200309 0.423002821558111 0.423008316849215 2.51004669879924 2.50753595885741 2497428.966177838 1.73089111380673 224.396959481763 121.062068787055 -70.0068869254935 1076077.72239702 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2128-Jul-25 10:11 00:02 Earth 0.436603340410957 0.436598710468837 0.436607971793293 2.72887340831242 2.72663613017452 2498501.923990939 1.65679248242404 1272.68353513057 7.16213526603072 -79.5606880182733 1513531.38349826 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2140-Nov-11 18:02 00:08 Mars 0.0412351031584679 0.0412285293869837 0.0412416782290269 3.35893338857652 3.35686576537152 2502994.251244797 7.5119272136754 491.465308918309 24.9413616498549 48.2403326492579 198332.978835292 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2165-May-08 10:26 00:13 Mars 0.0415995621455469 0.0415850898814962 0.0416140423042464 3.53201339679104 3.5300643829357 2511937.934397092 12.7026751329042 1157.13929450777 22.3698183149417 -51.4272659708248 217455.278134608 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2177-Aug-24 21:16 00:06 Earth 0.445761360077325 0.445744009318146 0.445778743952508 2.45971903842151 2.45728773519734 2516429.386257166 6.49051314926115 6124.46814727838 17.9347651582394 -81.8686520070519 1035980.13908162 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17
2180-Aug-01 16:59 00:07 Earth 0.418419392377171 0.418408834602429 0.418429975406701 2.65877459725934 2.65637844299665 2517502.207330666 6.99956095345782 5156.36794703256 10.4101379024086 -84.141980979994 1423298.20562765 T 20 CATAB v2.0e-lin.ifort 2019-Jul-14 10:17:47 2019-Jul-14 10:17

Alternate Designations
 2003 XZ21 = 2008 CH92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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