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(2021 AC)
Classification: Apollo [NEO]          SPK-ID: 54104073
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07450941425454576 0.00011188  
a 1.036482581861373 0.0002073 au
q .9592548718018428 7.5904e-05 au
i 26.61655720637035 0.019519 deg
node 285.252487828706 8.043e-05 deg
peri 251.4213769242698 0.1087 deg
M 278.0551602563654 0.12009 deg
tp 2459288.232508788225
(2021-Mar-14.73250879)
0.10225 TDB
period 385.4263827053769
1.06
0.11563
0.0003166
d
yr
n .9340305079094364 0.00028022 deg/d
Q 1.113710291920903 0.00022275 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      18 days  
   first obs. used      2021-01-02  
   last obs. used      2021-01-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .61116  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-27 05:49:19  

Additional Information
 Earth MOID = .0232354 au 
 Jupiter MOID = 3.98974 au 
 T_jup = 5.816 
[ show covariance matrix ]

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 23.70   .39553 E2021-BA4 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
1923-Dec-28 06:01 5_17:08 Earth 0.357317878678653 0.214037030493675 0.557330608349304 18.87811771898 18.8777227131882 2423781.750944095 8228.09983315224 11210284.7635421 130.500839702475 34.5001388815614 199321.851238052 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1924-Jul-04 13:55 4_02:37 Earth 0.453720386440522 0.317664225030796 0.612582483888238 16.7250276633035 16.724676538283 2423971.080186944 5916.71362343735 8951171.2784808 62.9352665479128 -32.6363575907515 414289.48107814 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1925-Jan-05 13:13 3_01:04 Earth 0.0257954015962882 0.0238189889578075 0.161984758157702 14.101495379035 14.0941685217233 2424156.050806164 4384.29421902594 7496397.84603078 10.7872103333634 67.4331913519075 267524.083016015 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1925-Jul-04 19:50 22:49 Earth 0.137622253365759 0.0855932905159033 0.268247617576841 13.4225283511418 13.4210858615131 2424336.326378355 1369.12390504242 7303474.58397362 14.8192258314017 -38.4615751868678 730145.274085976 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1926-Jan-11 10:57 1_03:10 Earth 0.328953156060831 0.213937706475623 0.446087026125188 15.7178607840915 15.7173454463128 2424526.956474322 1629.67861348808 5936212.58664533 62.7621701730078 -11.9901665861778 139027.274586577 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1926-Jul-10 06:23 2_13:52 Earth 0.197358449738568 0.103452076892992 0.299038726280745 15.3967160360303 15.395839154548 2424706.766213376 3711.6848651276 5256769.21100655 52.3401859235622 18.9290898205436 173013.889287694 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1942-Dec-27 16:47 5_19:13 Earth 0.368534142391275 0.217059043688685 0.57172565951562 19.1178402601301 19.1174620787912 2430721.199408640 8353.08072528233 11280647.2839429 132.816356335068 32.9770357945655 194159.553183154 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1943-Jul-05 07:40 1_02:36 Earth 0.467828201775384 0.320670150441375 0.674532312625561 16.9578469034906 16.9575110425121 2430910.819374079 1595.74573217837 12219577.3051792 90.6551099840007 -39.8288044465488 394835.217973125 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1944-Jan-05 23:52 4_19:30 Earth 0.0356453483857842 0.0261195279263598 0.261127439587062 14.1916319658681 14.1863638202743 2431095.494692956 6929.95992654251 11746860.7255223 14.7895385663185 47.1280352376596 230658.172791268 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1944-Jul-04 09:25 1_22:31 Earth 0.155298780500795 0.104122410253205 0.393111548370246 13.4956916775275 13.4944203143743 2431275.892314702 2790.78314248342 13157321.0092 28.764954031295 -42.1060451848976 455014.768554557 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1945-Jan-11 00:26 2_07:39 Earth 0.307362117962696 0.102355785624797 0.527832200665719 15.4349722235664 15.4344105757613 2431466.518335701 3338.9186404934 11158205.4869264 61.8795945445629 -12.934958003407 142472.893607678 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1945-Jul-09 15:51 4_09:11 Earth 0.173516846553279 0.0524335498661341 0.386939061222933 15.0740140949123 15.072995371074 2431646.160082121 6311.00726838494 10869052.2835921 41.0401584210807 17.5928352695626 180301.163545569 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1946-Jul-18 05:23 6_03:20 Earth 0.490259860062832 0.278085408844338 0.704223874461378 21.0270582413784 21.0267997713613 2432019.724437407 8839.5331966441 10727169.3640215 57.1111391888937 7.13266517556841 141765.495506897 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1981-Dec-31 18:59 3_20:07 Earth 0.224695098907582 0.149347351990638 0.401249107144494 16.4335107138579 16.4327891115059 2444970.291072479 5526.55364731328 10199733.3235277 98.3367819246835 41.6590994053702 193514.000318124 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1982-Jul-04 01:45 00:58 Earth 0.336967972235239 0.267737837091132 0.4988969980181 15.0935207162618 15.0929968255313 2445154.573034673 57.5396480558679 10789230.0873726 85.1826396829262 -52.6142836908392 348666.375052379 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1983-Jan-08 17:43 2_15:27 Earth 0.116312908015594 0.04771427507735 0.261793029297289 13.9257355052274 13.9240904065479 2445343.237878491 3806.66269405616 7546465.32073339 40.3946023467409 -24.2237964869989 156678.636757587 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1983-Jul-06 21:58 1_19:33 Earth 0.0403381187211954 0.0378540650183586 0.149964550874962 13.4682402349389 13.4633349418945 2445522.415023384 2612.80448297031 6541491.28370226 26.0087948006978 -69.7931999209446 240615.575088941 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1984-Jan-12 20:11 02:52 Earth 0.446272111609864 0.319602667882318 0.573770064986925 17.5156963226133 17.5153554521053 2445712.341030481 172.022660840851 6409314.89715454 73.0928243658266 -8.25361201396289 113346.160805216 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
1984-Jul-12 19:17 3_05:49 Earth 0.31055262600496 0.192074719297366 0.431598834336921 17.2866035845211 17.2861072508795 2445894.303344631 4669.1043628309 6136189.84529155 52.4704090190524 12.243227017072 169897.613975709 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2000-Dec-29 02:27 3_01:21 Earth 0.312949533819714 0.222803686207183 0.424409693249255 17.9991826715305 17.9987096390415 2451907.601760129 4400.98864658894 6491251.61823136 124.012261917258 36.8003903028914 193419.641909753 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2001-Jul-04 04:04 16:24 Earth 0.418023876441287 0.338143395220594 0.516969119979178 16.2151668508841 16.2147737580644 2452094.669409976 983.611578329567 6318477.38306829 85.9246381778908 -43.8023900245114 375731.422936991 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2002-Jan-06 19:23 2_04:13 Earth 0.0341270229548484 0.0251988291004547 0.136853100770653 13.9577583798547 13.9521635700676 2452281.307662430 3133.18957911104 5560295.10239886 12.8058792016363 -47.6030747259773 235293.082659249 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2002-Jul-05 15:19 1_00:56 Earth 0.105548943631269 0.0622254628746504 0.207289804935471 13.3592328731209 13.35734310872 2452461.138222496 1495.52063183214 5608783.43297176 11.4420654527276 -36.1288468088701 2622332.01228898 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2003-Jan-12 06:50 17:36 Earth 0.364084602889814 0.268548770352349 0.460636878700026 16.2132591632015 16.2128077796134 2452651.784908516 1056.07147241837 4884522.38484729 68.0327351761879 -10.9292115825774 130468.877137408 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2003-Jul-11 12:27 2_05:45 Earth 0.230940429168581 0.141775457917898 0.323427249601194 15.9076288040058 15.9069035054033 2452832.018578650 3224.68905731405 4735764.56357107 50.5789468971034 15.5870738649687 170174.347432131 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2019-Dec-29 02:45 04:35 Earth 0.33849834202268 0.332734370148612 0.344299294372963 18.5053732568707 18.5049478906946 2458846.614853421 274.992739408509 338043.120924278 134.390004519166 31.458232997667 166452.1271889 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2020-Jul-04 08:29 05:35 Earth 0.440633405199561 0.437356118443334 0.443913454715979 16.5327675862804 16.5324018279876 2459034.853149817 335.408259459128 172503.506304446 294.138123357236 18.6019931002317 64345.2898374285 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2021-Jan-06 03:27 < 00:01 Earth 0.0234071244249059 0.0233543378967354 0.0234599106790155 14.0436196075503 14.0355116657702 2459220.643404886 0.0232298530479851 2629.21038357739 7.35368684073589 0.203552876381296 965.286859518655 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2021-Jul-05 04:34 01:14 Earth 0.127376334222364 0.125968768432976 0.128826634726089 13.3981983167449 13.3966369586656 2459400.690445484 74.2866153092235 136439.245846568 139.205843681703 -58.509974606425 108829.92231285 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2022-Jan-11 22:18 02:19 Earth 0.342465146759082 0.336716502940638 0.348216494913377 15.8955897087585 15.8951002388248 2459591.428971903 138.733641548503 290717.352520853 68.1608224434541 -9.50839387316898 105106.008468589 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2022-Jul-10 18:42 01:31 Earth 0.208016857185305 0.200776937090702 0.215259227781751 15.5598182605922 15.5589950313382 2459771.278886264 91.187968931906 362837.668777094 23.6137661813873 5.64218874752698 109863.496861075 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2038-Dec-28 07:45 2_20:28 Earth 0.357176162334772 0.268562037076517 0.458283375184753 18.8932637978812 18.8928689521566 2465785.823146936 4107.97209770859 5793875.18252176 131.102867571135 33.8293628491998 194537.585045518 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2039-Jul-05 09:12 16:55 Earth 0.459709569513592 0.377014075380577 0.556369343801608 16.8139334631721 16.8135887451891 2465974.883349361 1014.68134735619 6006822.68215145 85.6905834294829 -40.9084135213902 406661.497369208 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2040-Jan-06 12:49 2_07:32 Earth 0.0279393327517667 0.0239985966894144 0.130282018336916 14.1348940214346 14.1281455182628 2466160.033763177 3331.82207597629 5672448.69186927 9.89443858154881 59.2081585320737 279965.5073062 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2040-Jul-04 17:19 1_01:14 Earth 0.147777877189737 0.0988235444996794 0.256769112521747 13.4693460590511 13.468007375262 2466340.221226815 1514.38681462633 6338945.83286621 30.6828022250979 -41.9722052972806 427267.408760734 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2041-Jan-11 11:05 1_08:03 Earth 0.318435846153346 0.202279417995308 0.437032872976535 15.567032269272 15.566494752427 2466530.961463478 1923.41685919603 6016236.61774634 66.4262674274224 -12.4206574127785 133044.108600798 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2041-Jul-10 02:21 2_05:34 Earth 0.18116263983984 0.0758992862237429 0.29506149900697 15.1866713797194 15.1857028901024 2466710.598211457 3213.97811563159 5813428.58569626 38.5326117230001 15.774879142966 178072.116392656 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2042-Jul-18 16:33 3_07:49 Earth 0.497862352281006 0.373229236279834 0.622874337464894 21.2337877989723 21.2335357539211 2467084.189686902 4788.76022000127 6261967.3758351 57.1659048705262 6.08512503871856 122594.312323054 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2079-Jul-07 00:55 3_18:14 Earth 0.0428866956794813 0.0381857197397918 0.295208143331875 13.4449515775933 13.4403298411119 2480586.538495183 5413.72860689104 13624179.788765 27.2979517564956 -62.9277445904874 230757.077934824 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2080-Jan-13 03:22 12:38 Earth 0.442437925713634 0.182725285682516 0.707219404181947 17.4264551121327 17.4261095268305 2480776.640177815 758.242324883537 13289309.6602072 77.5871152900732 -8.24679327543569 106082.112560953 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
2080-Jul-12 20:10 6_14:42 Earth 0.303166927882193 0.070684679336099 0.562560808000695 17.1664168080016 17.1659048228603 2480958.340376190 9522.3247710156 13082097.1218035 54.5538502055378 11.7484760559467 153441.1684973 T 15 CATAB v2.0g-lin.ifort 2021-May-27 05:49:20 2021-May-27 05:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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