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497135 (2004 QD20)
Classification: Apollo [NEO]          SPK-ID: 2497135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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 56 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6976248574672828 3.5435e-08  
a 2.172233011593582 1.3724e-08 au
q .6568292664948832 7.5926e-08 au
i 17.53957655635854 6.2286e-06 deg
node 224.1918394023308 3.9136e-05 deg
peri 353.4023762025493 4.3073e-05 deg
M 127.2598906687806 1.0776e-05 deg
tp 2458983.122260529523
(2020-May-13.62226053)
3.266e-05 TDB
period 1169.386406253445
3.20
1.1082e-05
3.034e-08
d
yr
n .3078537582400938 2.9175e-09 deg/d
Q 3.687636756692282 2.3298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      5895 days (16.14 yr)  
   first obs. used      2004-08-26  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53414  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 17:54:53  

Additional Information
 Earth MOID = .284954 au 
 Jupiter MOID = 1.30652 au 
 T_jup = 3.278 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458570.5 (2019-Mar-28.0) TDB
Reference: JPL 56 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6977203194582762 3.5065e-08  
q .6569951807150394 7.599e-08 au
tp 2458983.102578875360
(2020-May-13.60257888)
3.2667e-05 TDB
node 224.2177524297599 3.9123e-05 deg
peri 353.4167560393386 4.3078e-05 deg
i 17.53943196503531 6.2145e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      5895 days (16.14 yr)  
   first obs. used      2004-08-26  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53414  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 17:54:53  

Additional Information
 Jupiter MOID = 1.30652 au 
 T_jup = 3.278 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.229528091232839E-15 -2.661866432599454E-15 3.625421354731207E-13 -2.778500796524666E-13 2.632182351155901E-13 -7.480695998818235E-15
q -2.661866432599454E-15 5.774454003232097E-15 -7.701577648258581E-13 5.931501562303383E-13 -5.599278049070873E-13 1.518131425168056E-14
tp 3.625421354731207E-13 -7.701577648258581E-13 1.067123043986243E-9 -6.184035632931734E-10 9.122079955948449E-10 -1.140845353608645E-10
node -2.778500796524666E-13 5.931501562303383E-13 -6.184035632931734E-10 1.530603759458571E-9 -1.63604574370189E-9 1.925508252184268E-11
peri 2.632182351155901E-13 -5.599278049070873E-13 9.122079955948449E-10 -1.63604574370189E-9 1.855704402912952E-9 -5.519653954206861E-11
i -7.480695998818235E-15 1.518131425168056E-14 -1.140845353608645E-10 1.925508252184268E-11 -5.519653954206861E-11 3.862048053402914E-11

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 18.12   n/a E2021B25  

497135 (2004 QD20)          Discovered 2004-Aug-26 by LINEAR at Socorro
Reference: Last Updated: 2017-10-09

[ 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
1908-Mar-06 23:31 00:03 Earth 0.316677083605955 0.316673730880492 0.316680436879225 17.9220565717085 17.921587095526 2418007.479789304 3.24336896461093 680.676608231141 15.988711834985 -75.8434813519162 2824677.21467783 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1911-Jun-15 05:21 00:03 Venus 0.127786235704073 0.127775994397663 0.127796478652008 19.3496041313424 19.3487258722786 2419202.722983689 2.95153482685447 884.817509237819 14.5967121404524 54.7561589981657 1051758.4737739 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1911-Jul-29 17:57 00:01 Earth 0.355929951206366 0.355921042081394 0.355938860736367 26.2818083044899 26.2815234684548 2419247.247965963 1.35909846718699 746.019181691539 19.3592410253976 -53.4766434630301 2139217.19366235 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1924-Mar-10 09:28 00:03 Earth 0.328184638394386 0.328181756668544 0.328187520489077 18.3389375029694 18.3384947870084 2423854.894691910 2.76536028309997 570.541178908447 16.1632280649844 -75.5004525577555 2834026.33951745 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1927-Jul-25 19:18 00:01 Earth 0.318853257102804 0.318847548088225 0.318858966511015 24.3819995587611 24.3816568263056 2425087.304420798 1.25753062754669 628.144346103741 19.0458645747002 -63.1012621835146 2175328.14086905 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1929-Jan-01 14:30 < 00:01 Jupiter 1.39634933694199 1.39634737710677 1.39635129677713 6.3389264038478 6.24249887829647 2425613.104222623 0.678249070524947 131.379068729113 96.1679636807233 -88.6132180284483 1413532.54003489 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1940-Mar-23 18:16 00:02 Earth 0.337924089513498 0.337922494747576 0.3379256844746 19.4505839623097 19.4501785797267 2429712.261394324 2.09265508155949 421.099129178941 16.0711157173372 -79.3337605751072 2872610.0487535 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1943-Jul-04 22:13 00:02 Venus 0.0735136322562388 0.0735068615030229 0.0735204044386179 20.1903327837914 20.1888696861073 2430910.425909716 1.71586169146205 613.097225631414 16.1630096841377 -56.6121392760846 562070.187396893 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1943-Aug-06 01:46 < 00:01 Earth 0.443017890909214 0.443010100098632 0.443025681833697 29.6445354618811 29.6443325778204 2430942.573693691 0.883736200674803 526.030155643683 18.6348304943091 -42.4253883516521 2308369.09513318 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1956-Apr-21 17:57 00:02 Earth 0.354701574683282 0.354701330662622 0.354701818711705 21.4920428438705 21.4916933214219 2435585.248144496 1.58995218190506 310.223219417346 11.7273154495211 -89.400181893055 3990576.59598734 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1964-May-28 01:02 < 00:01 Jupiter 1.31442410155685 1.31442331942066 1.31442488369746 6.35152264229222 6.24924221654014 2438543.543237624 0.502986303224006 149.699259923438 20.9840063902728 77.5393416734088 4278741.83829131 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1972-May-09 03:41 00:01 Earth 0.35361445732624 0.353613932227722 0.353614982485041 21.5919436463023 21.5915946714631 2441446.653256269 1.29997708392387 260.484024265578 12.0168871974135 84.8703706235637 3855356.56617776 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1988-May-11 14:44 00:01 Venus 0.111103310330316 0.111099422935941 0.111107197995967 19.391501389824 19.3904934333044 2447293.114172689 1.07461328124239 335.917699517033 12.4762757092139 54.8099863076868 1062784.0845763 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1988-May-26 19:04 < 00:01 Earth 0.334465494298201 0.334464763110929 0.334466225524106 20.4110028121024 20.4106125100393 2447308.294449218 0.968274552730508 200.826244176279 15.3016074751661 80.4869285607303 2917477.30430046 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
1999-Oct-17 14:56 < 00:01 Jupiter 1.67301498650756 1.67301367865453 1.67301629436059 7.95090650003848 7.88697305881486 2451469.122407154 0.283219855439437 126.197556703931 63.8530847859631 85.0906293197905 2313119.03847406 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2001-Jan-24 19:51 < 00:01 Earth 0.390956258166318 0.39095418311424 0.390958333233485 27.584943365545 27.5846962989467 2451934.327129448 0.276219618826821 160.260636764556 14.7001871189299 50.0726668129187 2966785.44416473 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2004-May-20 13:47 < 00:01 Venus 0.0733019627950975 0.0733012572933777 0.0733026683922564 19.6786260926572 19.6771206119975 2453146.074197199 0.444947123859954 144.067690416482 11.5957383583281 76.6253131884234 898126.690006855 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2004-Jun-01 15:39 < 00:01 Earth 0.336581700357396 0.336581293453528 0.336582107264824 20.2754130381093 20.2750225962895 2453158.152244730 0.427247651494911 89.9626989178609 15.9019626915946 81.8176850041787 2867087.2711906 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2012-Mar-14 08:18 < 00:01 Jupiter 1.69796139716537 1.69796010303428 1.69796269129753 7.32417087559136 7.25574155622488 2456000.846076735 0.307303044233697 122.975947435373 47.6734561860588 67.8842269902903 2372509.35685635 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2017-Jan-18 07:19 < 00:01 Earth 0.494930959489765 0.494929745694059 0.494932173286596 31.6844493566803 31.684279445195 2457771.804897934 0.139238809678682 71.4926324840459 12.4667400109029 32.7166817284065 3200957.7866581 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2020-May-18 11:02 < 00:01 Venus 0.0639249414246117 0.0639244981913626 0.0639253846938709 19.3283941422025 19.3266365319377 2458987.959533527 0.243340408272257 88.4236820802475 10.3453412798459 77.1484440407402 874869.412036528 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2020-May-28 23:09 < 00:01 Earth 0.331773094735906 0.331772852433509 0.331773337038398 20.2639289211771 20.2635325958866 2458998.464781987 0.23545160526046 51.3438253699634 11.8724582119303 -87.4266886476427 3646067.4101377 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2033-Jan-24 15:59 < 00:01 Earth 0.414860175074985 0.414857774523702 0.414862575639734 28.3561347096543 28.3559082111627 2463622.165765029 0.299292832431884 168.50440727185 13.5969811758405 44.9187901035924 3113662.21009143 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2036-May-31 18:12 < 00:01 Venus 0.115405915731301 0.115402624779555 0.115409206760725 21.6876100616318 21.6867424250287 2464845.258385791 0.565154611511362 222.350014054463 16.0758856836242 -42.5717460602699 714106.802071149 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2036-Jun-10 04:07 < 00:01 Earth 0.321824132429596 0.32182358546061 0.321824679416217 19.4937257402901 19.4933010193934 2464854.671255919 0.695699173137706 147.102356879669 15.542139508146 81.1864607894889 2828205.67700785 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2047-Jul-29 14:50 < 00:01 Jupiter 1.31073692745421 1.31073635713928 1.31073749777286 6.19086092767511 6.08558312196125 2468921.118047989 0.344901982920835 137.411691813933 15.9825928737204 80.0162913597065 6346427.5071559 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2049-Jan-27 01:53 < 00:01 Earth 0.392736555186106 0.3927329755304 0.392740134886372 27.3408994869014 27.3406513449445 2469468.578649370 0.484796673507615 275.082237208337 14.5694053246299 49.6354852563202 2976813.03781467 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2052-Jun-13 08:23 00:01 Earth 0.316649648843952 0.316648752681113 0.316650545067179 19.261230586928 19.2607937148977 2470701.849109473 1.10118571494704 238.253010770527 16.2280523922428 79.9116634693645 2734580.53961541 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2065-Feb-03 06:07 < 00:01 Earth 0.334047738409286 0.334044343342903 0.334051133602816 24.1325456688046 24.1322151443035 2475319.754881233 0.716855963795289 367.704710851571 15.7313872297135 62.6873907708841 2758509.21671623 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2068-Jul-04 15:17 00:01 Earth 0.288407967189839 0.288407395163925 0.288408539324709 19.1743246833263 19.1738428570473 2476567.136867326 1.26221832292775 343.366875017687 16.4530746482925 86.1033173544899 2624925.47490853 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2081-Feb-15 04:56 00:01 Earth 0.294845951763044 0.294845269074784 0.294846634623982 20.0574058064388 20.0569552519674 2481175.705214725 1.13951422136406 410.725218489059 16.8266233463758 85.8648025617653 2644199.65148036 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2082-Dec-17 14:07 < 00:01 Jupiter 1.42029962720709 1.42029812465977 1.42030112975691 6.86735961319876 6.77996240980898 2481846.088064016 0.446157777793571 158.840159131469 53.9938684458536 70.532119172884 2166404.9754657 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2084-Jul-20 02:19 00:01 Earth 0.303814115710999 0.30381230705673 0.303815924563837 21.9023705839936 21.9019701626156 2482426.596725510 1.01784183429313 403.487850292442 15.6489183930198 -77.2732017425171 2762010.06748015 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2097-Feb-09 02:19 00:01 Earth 0.309530226167018 0.309527559895644 0.309532892698406 22.1418137331082 22.1414249566924 2487013.596238858 1.04499181896532 470.532598464472 17.6612870773332 73.7243007281335 2508043.50046077 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2100-Jul-09 20:50 00:01 Earth 0.291965914925438 0.291965550991808 0.291966278924376 19.6002398785357 19.5997742667386 2488259.367829063 1.4751266215742 437.877523180717 15.7419531727286 88.8165639518085 2764259.5978919 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2113-Feb-16 07:13 00:01 Earth 0.296947015074241 0.296946095078034 0.296947935335287 20.2879382988307 20.2874960158668 2492863.800931272 1.31126281451737 484.806292113054 18.3808798666235 85.0225330653813 2450195.06678031 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2116-Jul-16 21:07 00:01 Earth 0.295301220627271 0.295299920101725 0.295302521410062 20.8902051139685 20.8897731884132 2494110.379856412 1.25233437616876 452.484170110774 15.6185715278662 -81.9989913926581 2743978.64059519 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2129-Feb-04 03:05 < 00:01 Earth 0.338164879927959 0.338160791058831 0.338168968996617 24.3852947044307 24.3849715882375 2498695.628787334 0.8685613203222 458.978322608373 17.9362444555871 63.7138660421549 2490738.95832218 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2130-Sep-24 06:04 < 00:01 Jupiter 1.43179316306155 1.43179152253185 1.43179480359134 6.53152570451322 6.44031558229743 2499292.752915558 0.502826706750309 125.657643498208 78.7641667047847 80.4440533765111 1582394.63872993 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2132-Jul-04 10:22 00:02 Earth 0.297033958038151 0.297033145677466 0.29703477058102 19.0181079672549 19.0176362906547 2499941.931942912 1.51795024685676 399.515908711289 15.592747793202 84.6250597645183 2854767.0558024 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2145-Feb-11 23:52 < 00:01 Earth 0.308630710972223 0.308628408324936 0.308633013832208 21.9386781810835 21.9382846612235 2504547.494204558 0.962492265569288 425.799269032098 19.5827128677147 74.5738125765227 2280944.28322522 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2148-Jul-13 22:02 00:01 Earth 0.294471029056611 0.294470430877021 0.294471627386029 20.1688946720702 20.168446037728 2505795.417957168 1.16798726326099 385.513586995228 15.1319422720068 -86.1738543538517 2852713.75738844 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2161-Feb-18 13:22 < 00:01 Earth 0.297624032314002 0.297623480998932 0.297624583707927 20.0726393245703 20.0721933144591 2510398.057210315 0.999800839744338 356.249625562881 20.1553510284298 86.987111673034 2264751.38782894 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2161-Mar-25 14:12 00:01 Venus 0.110190092410798 0.110185223825745 0.110194961412993 19.7763115559521 19.7753150221251 2510433.091824246 1.25111977368845 416.554998911052 11.7706686651079 54.3813067371126 1103384.32755178 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2164-Jul-15 20:53 < 00:01 Earth 0.29714880583671 0.297148121259222 0.297149490522874 20.4943998444145 20.493962314453 2511641.370064290 0.916538070593423 317.65724904429 15.0732684747019 -84.4607763340203 2864992.89268439 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2166-Feb-07 11:34 < 00:01 Jupiter 1.32279253518461 1.32279177769062 1.32279329268079 6.40035732823957 6.29951710794361 2512212.981879513 0.413996946791874 137.138616777854 28.2788354385906 79.7068568648263 3982963.64404038 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2177-Feb-09 14:46 < 00:01 Earth 0.319304074283366 0.319301927743417 0.319306220949388 22.8184883871244 22.8181226875072 2516233.115498968 0.712895121912809 339.478790659297 20.1948770037951 71.9293824757804 2254292.32460094 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2180-Jul-05 05:53 00:01 Earth 0.299039748749395 0.299039147009208 0.299040350584076 19.0406347923762 19.0401668338642 2517474.745365651 1.12534990680735 307.719968610835 15.0280312653361 85.1517060883591 2978660.41057211 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2193-Feb-08 02:50 < 00:01 Earth 0.33100335015687 0.331000867700116 0.331005832715209 23.6435039064544 23.6431634424083 2522075.617828340 0.616202976852524 318.041096536238 19.8777122995304 67.3608933381901 2284179.71486315 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
2196-Jul-02 01:55 00:01 Earth 0.30322296010799 0.303222200952894 0.30322371934913 18.8871627981154 18.8866975454187 2523315.580114659 1.06876974947625 280.988342607266 15.288494014629 82.9090672068563 2970309.57874443 T 56 CATAB v2.0g-lin.ifort 2021-Apr-14 17:54:54 2021-Apr-14 17:54
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