+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 HC6) Classification: Apollo [NEO]          SPK-ID: 54016747 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .274935841694318 4.7101e-07   a 1.349595036335308 8.4574e-07 au q .9785429890739862 7.7926e-08 au i 4.879968718722935 8.3529e-06 deg node 224.4859878053798 6.6474e-06 deg peri 35.81448923961204 3.7009e-05 deg M 121.676517444411 0.00010379 deg tp 2459006.943435244245 (2020-Jun-06.44343524) 3.3029e-05 TDB period 572.6689485825043 1.57 0.00053831 1.474e-06 d yr n .6286354461702315 5.9091e-07 deg/d Q 1.720647083596629 1.0783e-06 au   Orbit Determination Parameters    # obs. used (total)      109      # delay obs. used      1      # Doppler obs. used      1      data-arc span      17 days      first obs. used      2020-04-24      last obs. used      2020-05-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      3      norm. resid. RMS      .35074      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 22:25:29   Additional Information  Earth MOID = .00526704 au   Jupiter MOID = 3.34011 au   T_jup = 4.831  [ hide covariance matrix ] Orbital Elements at Epoch 2458970.5 (2020-May-01.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2721453714982677 4.728e-07   q .9784237363667058 7.9354e-08 au tp 2459007.268258062971 (2020-Jun-06.76825806) 3.4063e-05 TDB node 224.7595143165487 6.0259e-06 deg peri 35.84714428316443 3.8025e-05 deg i 5.067550784759039 8.0916e-06 deg   Orbit Determination Parameters    # obs. used (total)      109      # delay obs. used      1      # Doppler obs. used      1      data-arc span      17 days      first obs. used      2020-04-24      last obs. used      2020-05-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      3      norm. resid. RMS      .35074      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 22:25:29   Additional Information  Jupiter MOID = 3.34011 au   T_jup = 4.831  Orbit Covariance (6×6)   e q tp node peri i e 2.235359245515695E-13 -1.241553393257279E-14 -7.919243354803982E-12 1.335137060821833E-12 -6.830157423974828E-12 1.305343565087743E-12 q -1.241553393257279E-14 6.297069717239255E-15 -1.775539312832698E-12 -1.095037041542699E-13 -2.227080481693768E-12 -1.783370002460187E-13 tp -7.919243354803982E-12 -1.775539312832698E-12 1.160255064320358E-9 -2.923485549124966E-11 1.272777809426233E-9 -5.65508930621343E-12 node 1.335137060821833E-12 -1.095037041542699E-13 -2.923485549124966E-11 3.631126559824226E-11 -4.827324681656863E-11 2.256718449388182E-11 peri -6.830157423974828E-12 -2.227080481693768E-12 1.272777809426233E-9 -4.827324681656863E-11 1.445911804640068E-9 -6.131955278395421E-12 i 1.305343565087743E-12 -1.783370002460187E-13 -5.65508930621343E-12 2.256718449388182E-11 -6.131955278395421E-12 6.547426102163812E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 25.4   .42066 MPO546171 autocmod 2.8 [ 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-Apr-25 15:42 07:27 Earth 0.0847766022668735 0.0816175522055062 0.0879361567430537 8.40285004054863 8.39910887929926 2418057.154069156 447.29422943697 157878.886515809 3.76944850779425 3.96364029557884 196719.659520739 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1908-Aug-29 05:27 23:56 Earth 0.317797395826794 0.31541134323142 0.320190396857556 2.88840563556495 2.88550146428376 2418182.726914674 1436.33925525872 140344.404396794 30.1912204807724 33.0395401035207 119671.154862301 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1911-Feb-19 23:29 06:41 Earth 0.483283394311269 0.481848394613546 0.484718678884727 6.8364011509568 6.83559464317267 2419087.478598862 401.359492708854 73918.1869795002 29.8877063053717 -14.5677405227865 312874.914506625 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1911-Aug-19 02:11 04:00 Earth 0.375937682992678 0.372888495559759 0.378988616056437 16.2500681500495 16.2496319887399 2419267.591191236 239.71264112661 157367.466185692 21.0626718764691 -14.8820347424592 571001.986637479 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1922-Apr-11 15:28 03:43 Earth 0.299260344536223 0.296401847652093 0.302118944955717 14.5927628681562 14.5921527207922 2423156.144675656 222.908150853402 142814.26980636 5.46253672221951 3.56932343209197 426131.87454739 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1922-Sep-29 04:00 06:20 Earth 0.44326906757453 0.44188640838103 0.444652015189494 6.48071600991292 6.47978842639905 2423326.666785826 380.449944495956 71223.0416644723 22.315778280086 14.5847749815197 353031.534992432 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1925-Mar-17 04:06 11:42 Earth 0.365456664803073 0.363633829345394 0.367279527613145 4.12551939102471 4.12375176296559 2424226.670855952 702.225507860645 91034.9183349228 22.1934590511732 4.86523092850534 64244.9998917232 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1925-Aug-05 11:13 05:12 Earth 0.176398712484045 0.174126586724882 0.178680862163667 9.97114904440323 9.96963407196584 2424367.967144890 312.170946131224 131497.355877964 20.2412574840867 -30.3003892349815 521269.035674996 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1936-Apr-01 21:57 01:37 Earth 0.484259601163629 0.482837013141572 0.485682196419637 19.9640978886138 19.9638222834033 2428260.414569948 97.4208967250284 71000.264732975 5.91564984834419 2.4091180615574 445500.037661717 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1939-Jul-06 02:37 09:42 Earth 0.0799040766873923 0.0797169801607452 0.0800971705655121 5.40587478666175 5.39970279359918 2429450.609108102 582.180625621341 35817.0862133671 18.7456390612457 -74.6809662974413 514257.050095864 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1953-May-18 03:07 01:49 Earth 0.0316009254930193 0.0314263740940802 0.0317754848284905 5.43334411633775 5.41780354872999 2434515.629980742 108.554565341431 8740.23732288984 4.92754451654529 -4.85185983457187 83410.6741858758 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1967-Jun-17 00:05 01:21 Earth 0.0697912360760831 0.0697526360978455 0.0698298777268968 5.19253068213707 5.18517301399409 2439658.503794706 81.3196972088132 3309.33019686625 14.801269939759 -54.4261066256835 465565.19590253 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1978-Apr-03 04:05 00:01 Earth 0.471300059785009 0.471285452215014 0.471314667355594 19.6243061708853 19.6240180838338 2443601.670481530 1.01497658793795 728.889967870279 5.6709471179131 2.08795078913481 401034.718591805 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1981-Jul-26 05:30 00:04 Earth 0.106485907613714 0.106474759785657 0.106497057620441 7.18490862771788 7.18142522038957 2444811.729458656 3.78996127536687 941.813875066444 20.1794862925038 -53.8705849225445 515910.747395185 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1992-Apr-12 07:26 00:10 Earth 0.285759554458333 0.285628174922128 0.285890934208189 14.2110090246738 14.2103528843817 2448724.809732685 10.3173975302016 6562.94860921655 5.26540068917953 3.45521681970796 406500.936024912 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1992-Sep-27 03:10 00:19 Earth 0.437899662589322 0.437834022178508 0.437965303635797 6.33719006496379 6.33622983795477 2448892.632137499 18.624497636131 3377.3344554565 23.3231430689703 14.3615869999856 317151.588638547 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1995-Mar-03 23:28 00:26 Earth 0.428717075389112 0.428629677389841 0.428804473833424 5.68143507465798 5.68034105445176 2449780.477563804 25.7168093387069 4412.30246037628 27.3812239798488 -9.21426110438366 163496.900736856 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 1995-Aug-13 05:11 00:13 Earth 0.269228330090755 0.269078052962214 0.269378618176491 13.0262763609252 13.0255165877133 2449942.716301871 13.4007293964215 7968.42471879798 20.5026932896104 -19.8829354890839 540428.121124359 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2006-Apr-26 05:19 00:32 Earth 0.0895786524303185 0.089341776964552 0.0898155292921315 8.55750604734185 8.55402949442711 2453851.721605957 32.1716684431924 11825.2168300316 3.78814447011287 2.98878531258167 153889.474871169 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2006-Aug-31 03:07 01:37 Earth 0.321863235942999 0.321685414402983 0.322041094238997 3.02253341015004 3.01979330786625 2453978.629764166 97.0473007486194 10396.8732059073 30.1771803030204 32.3638675799212 136245.920335047 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2009-Aug-22 14:29 00:14 Earth 0.440118053379923 0.439934021237195 0.440302089742205 18.2121961885373 18.2118637703195 2455066.103317451 14.0603876367876 9425.29278927695 21.6693857401965 -13.1857415571502 588406.354477383 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2020-May-08 19:21 < 00:01 Moon 0.00776203101011678 0.00776200638536846 0.00776205563486511 5.38209666282065 5.38131210751458 2458978.306420908 0.0144081920219266 1.29220102381357 1.21557183282531 -66.444505355093 1009019.19507829 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2020-May-09 10:55 < 00:01 Earth 0.00742330625011045 0.00742327684481937 0.00742333565540321 6.04623020914983 5.9865708977342 2458978.955000106 0.0143041333134443 1.48007461007884 1.26626693083551 -6.90747156969559 733600.412494527 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2031-Apr-22 18:13 00:21 Earth 0.132747823247628 0.1325578190078 0.132937828487854 9.82546230931339 9.8234192681878 2462979.259031545 20.8625224325054 9492.18210383143 4.35162840473638 3.62208377976848 237023.586817801 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2031-Sep-09 00:27 00:47 Earth 0.353803006596313 0.353678675629787 0.353927345043465 4.14344511972058 4.14162715884817 2463118.518617965 47.119330586672 6710.08958599605 29.9311618398818 22.8255555495834 186632.059855548 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2042-Apr-10 20:14 00:21 Earth 0.324874937908336 0.324594747959199 0.325155128414364 15.4111563828041 15.4106241907099 2466985.342758150 21.3389149649826 13988.0444334969 5.30947225622238 2.79819995003754 373644.089423874 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2042-Oct-01 00:15 00:36 Earth 0.459891543658285 0.459759753127992 0.460023336235272 6.67880436676882 6.67793683294285 2467158.510181242 36.0353249861458 6747.6582970927 22.6706485154081 13.1941909735794 327272.309990657 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2045-Feb-25 19:16 00:41 Earth 0.462728785056447 0.462580020863437 0.462877551039381 6.35794310426795 6.35703737137868 2468037.302985876 41.3199608878217 7555.8745804431 29.8394747413663 -11.0787645188118 210607.867257973 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2045-Aug-16 11:54 00:24 Earth 0.32659290155949 0.326309660039539 0.326876163726347 14.8788397647361 14.878291431524 2468208.996088992 23.9539797168763 14706.2314266798 21.3081713202447 -16.1773118130737 524658.598946847 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2056-Mar-23 00:33 01:53 Earth 0.350858235417046 0.350615399659015 0.351101106617087 3.60756108199822 3.60545539530146 2472080.523040220 112.622914889269 13326.5184907514 15.6831038396453 25.1586765878156 311296.181470581 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2056-Aug-03 21:54 00:42 Earth 0.155214160116617 0.154945221354702 0.155483295655441 9.34885917874348 9.34702278816606 2472214.412417130 41.722608499759 15998.3197306167 20.9334239802205 -33.0308746352744 478711.50365997 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2067-Jul-10 14:03 02:13 Earth 0.0788030019398425 0.0787613100341279 0.0788451123682104 5.51229597849697 5.50615865659433 2476207.085696986 132.568230748042 9299.20713753815 19.6838512736186 -77.0549348722066 494958.087440353 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2078-Jun-02 08:22 02:48 Earth 0.0555405417042616 0.0554004709781726 0.0556806997097566 5.183300753374 5.17403706153068 2480186.848903488 167.621845497667 7803.39216419283 9.66230818382007 -26.4185278319911 357321.32771727 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2089-May-22 06:18 00:16 Earth 0.0391155488285955 0.0390941896604183 0.0391369081924908 5.32894289994546 5.31614485360511 2484193.762494578 15.913799899661 1074.02224632391 5.95111538032977 -7.21326849467073 127023.260766088 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2100-Jun-25 03:09 03:12 Earth 0.0722672127060966 0.0722092403783817 0.072325503321796 5.21617881616787 5.20910566185051 2488244.631451645 191.810549057242 8104.26723648933 16.6305318871281 -69.0521040739086 495754.023639452 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2111-Jul-30 00:32 02:08 Earth 0.109528623050575 0.109111706247993 0.109947581890849 7.54668244339442 7.54345824738824 2492296.522289645 128.222855337401 31476.0640622598 20.9747169733045 -48.5675030055108 471958.662267635 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2122-Mar-07 13:27 02:20 Earth 0.425895288870881 0.425410809721147 0.426379775191664 5.54861014824314 5.54748251092059 2496170.060477377 140.092181798412 24315.8957869961 27.9742255848062 -6.84541040498458 116219.72484874 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2122-Aug-13 20:49 01:15 Earth 0.259120154878831 0.258321270314484 0.259919356337885 12.8347473478734 12.833946154417 2496329.367386235 74.8293360598787 42329.9625784374 21.0884965748511 -19.742024516142 501187.140467923 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2130-Apr-12 22:34 01:07 Earth 0.315523021997838 0.31462918666757 0.316416862521321 15.1406221117672 15.140064354056 2499128.440416725 67.1729424152777 44617.7685658983 5.13887573677436 2.6489506655559 352991.130854026 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2130-Sep-30 21:01 01:56 Earth 0.456812398430822 0.456377626004679 0.457247190818173 6.58559070955903 6.58470496407895 2499299.375797930 115.74999830208 22197.6623303841 23.8239818823807 12.4859103032146 292020.42208796 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2133-Aug-24 03:05 01:03 Earth 0.441946469879463 0.441091918960751 0.442801100223697 18.3503643788886 18.3500358285772 2500357.628388387 62.5486104054338 43627.087202344 21.8625791230318 -12.3722926857819 549874.227349789 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2141-Apr-24 02:48 01:33 Earth 0.130871168842879 0.130034490663449 0.131707855637762 9.79573500738749 9.79365637625301 2503157.616649850 92.6955647295622 41755.5652381456 4.2593353711313 2.52210184324295 165140.436284646 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2141-Sep-08 20:27 03:30 Earth 0.352277857156519 0.351713391605951 0.352842473985458 4.02377206131119 4.02189189997804 2503295.352216755 209.610285373467 30415.17380345 30.7938925373154 22.6066334698893 181326.070929453 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2152-May-09 21:07 01:33 Earth 0.00826286775891434 0.00825390968962486 0.0082809143817022 6.14727342788623 6.09459121889404 2507191.379943522 93.4642639631172 13742.8206396219 1.02006653251878 -87.2252263028117 972797.975260785 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2152-May-09 23:40 01:23 Moon 0.00911996422640398 0.00901902685977653 0.00922847480102667 7.0618119440313 7.06130305259635 2507191.486007206 82.9752179543202 14108.9655457867 1.05491773742596 -68.2672097555965 1180273.22607727 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 2163-May-09 15:19 5_06:51 Earth 0.00950963941037923 0.00817164653955181 0.0302007640647005 6.25517173479908 6.21021730787803 2511208.138242460 7611.21438501657 1208965.66260049 0.932724213171835 -59.3853562796439 994595.491146975 T 15 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:30 2021-Apr-15 22:25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-23 06:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin