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(2021 AA1)
Classification: Aten [NEO]          SPK-ID: 54104276
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .152446490409402 0.0003408  
a .9806965833841119 0.00022921 au
q .8311928310907126 0.00013998 au
i 17.26532157611152 0.053507 deg
node 286.0294025999216 0.00020846 deg
peri 303.5195583543718 0.065917 deg
M 231.1637151383872 0.1199 deg
tp 2459327.450995994404
(2021-Apr-22.95099599)
0.073638 TDB
period 354.7320431280343
0.97
0.12436
0.0003405
d
yr
n 1.014850524428278 0.00035579 deg/d
Q 1.130200335677511 0.00026416 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      8 days  
   first obs. used      2021-01-04  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .43201  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:31  

Additional Information
 Earth MOID = .0560654 au 
 Jupiter MOID = 3.91211 au 
 T_jup = 6.125 
[ 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 26.10   .38723 E2021-AE8 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
1988-Jan-12 14:06 2_23:30 Earth 0.0691799870778371 0.0612664010447999 0.292673804277452 10.4571344189205 10.453450621901 2447173.087461234 4289.59037487383 12670659.1051996 587.023457530143 62.355591101813 12135.0000409732 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
1989-Jan-11 10:00 3_03:29 Earth 0.221177935280122 0.109525634320588 0.42969378540659 13.9428789541899 13.9420149187484 2447537.916884247 4529.06966675051 11137511.9351072 1201.28114652282 29.6906359284105 11132.2022254466 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
1990-Jan-07 14:47 5_13:48 Earth 0.394487531718371 0.213273849458221 0.590685832820642 18.5485622162953 18.5481980723549 2447899.115937150 8028.41386140437 10167932.2816839 1464.79638860295 19.4359827807648 11327.9251791051 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2008-Oct-07 16:20 2_11:08 Venus 0.14264202237002 0.141149554406874 0.185356089160931 12.5698836487886 12.5686724620019 2454747.180452948 3548.06726398776 4967359.36945734 447.771315303296 81.730057547064 46100.6815666196 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2015-Aug-30 03:41 3_01:37 Earth 0.433776012273613 0.400146560419667 0.467861928542169 18.4673304221708 18.4669978035058 2457264.653397282 4416.82507748359 1828389.36818292 699.886851045024 -22.5011195266702 28757.3229509734 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2016-Aug-15 22:10 3_03:04 Earth 0.278971478561812 0.253138902115581 0.30566523936578 14.3801967591833 14.379532560892 2457616.423284186 4504.37285636469 1520867.77852586 581.157001787046 -30.4118731736577 26412.6880261451 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2017-Jul-30 05:07 3_01:36 Earth 0.152725462599394 0.14075315857781 0.167374586342967 11.4506975825693 11.4491738882148 2457964.713313079 4416.42421198588 1209019.91666869 491.130860531076 -56.3733437577834 23944.8075652976 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2018-Jul-09 00:50 2_17:54 Earth 0.137987465886355 0.13251433888461 0.146315135156547 10.2340103928719 10.2321234145788 2458308.534807006 3953.73352979179 1050288.05303201 518.495067928724 70.6705952376202 21196.2292406 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2018-Dec-05 00:17 3_16:35 Earth 0.303553406631644 0.297460396670846 0.309661348464896 8.91523417005171 8.91424955045849 2458457.511660231 5315.1053433172 322201.466675021 1214.12937601336 -19.1912411055025 26581.9965055777 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2019-Jun-12 02:48 2_05:04 Earth 0.229377386287499 0.221566139241105 0.238540400033432 10.1216919928499 10.1205442799499 2458646.616499966 3183.94084612042 975372.455442587 788.057622633143 64.2041014410432 20772.4596309926 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2019-Dec-31 04:22 20:44 Earth 0.180385067662092 0.176020918842831 0.18486352367341 9.12277966997416 9.1211603855731 2458848.681879286 1244.27134074118 316066.150744238 440.068989128123 -45.7453181512352 27506.0367879713 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2020-Apr-29 10:14 2_17:06 Earth 0.313362238795363 0.309377634670025 0.317360878208038 7.78627395950681 7.78518184928103 2458968.926227828 3905.88335272503 224850.640831068 1135.39383038167 27.642474297655 7430.6325346455 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2021-Jan-10 13:21 < 00:01 Earth 0.0580898131446782 0.0575858974873159 0.0585937205622865 9.73450637402341 9.72979330727548 2459225.056009494 0.927750627246973 25104.3256347796 300.480933232902 0.430587502230835 244.878617643659 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2022-Jan-12 10:28 00:34 Earth 0.16387296493704 0.158246849832664 0.169668013135184 12.5591616210766 12.5578669281305 2459591.936141487 33.5056817145379 387239.301554486 962.817443634757 42.6314244998886 14554.5380616588 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2023-Jan-09 14:29 05:26 Earth 0.333472253380065 0.321372100623675 0.345690865456788 16.8793929274654 16.87891955617 2459954.103559503 326.191233334964 682559.63248948 1318.53161675181 27.3187066689437 14803.5712541396 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2027-Mar-25 06:19 1_04:42 Venus 0.143469831422019 0.141643808768347 0.157698056357987 12.2420988450122 12.2408624011355 2461489.763244763 1721.99570707156 2320631.8486899 400.56346370357 -80.8662540286859 67627.3116971577 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2055-Jan-12 19:33 1_15:42 Earth 0.0902275412977509 0.0706837841294892 0.320154942910299 10.9186147919539 10.9159098404181 2471645.314572397 2381.82605558295 12775710.4291966 735.419627722825 51.5952629378618 11454.0472751767 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2056-Jan-11 20:43 3_19:58 Earth 0.250149643100533 0.117519840308754 0.467436064607387 14.6840307023687 14.683305301765 2472009.363508456 5518.14740923568 11548861.0545181 1251.76020076995 28.0270101400649 11544.9104457302 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2057-Jan-06 19:10 6_03:48 Earth 0.422934470622838 0.228190581567205 0.633685975348667 19.3610778373638 19.3607524404779 2472370.298727088 8868.40926883081 10918355.3043622 1493.64798261296 19.3543109308746 11960.5496456687 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2088-Jan-11 23:13 4_01:32 Earth 0.0565695173189171 0.0565355111927727 0.204638979758274 9.92326538608482 9.91851773077002 2483697.467532393 5852.37683975075 9722261.01558458 381.841576057706 88.2545117101116 15365.5366389671 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2089-Jan-12 04:58 1_13:18 Earth 0.182260447880786 0.102379069952665 0.352778820598205 12.9984924522216 12.9973677288316 2484063.706882303 2238.44821939003 9315643.1719097 1102.37836843714 34.1849968077502 11305.8620173257 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2089-May-11 06:11 4_19:24 Venus 0.141470580299306 0.140153998883131 0.261833774937083 12.550712884263 12.5494898022542 2484182.757959935 6923.49408247223 10071649.0218116 437.801691551423 82.2044757937608 47879.9805304275 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2090-Jan-09 01:28 4_08:41 Earth 0.353750425253943 0.196456402346003 0.527590332698102 17.4196644219237 17.4192320265965 2484425.560802465 6281.06153540547 9104332.05047822 1409.45618038979 21.8716372092208 11742.0229471329 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
2157-Jan-09 14:21 7_07:14 Earth 0.369429998994481 0.144566914589539 0.647960550563151 17.8662060496477 17.8658023552093 2508897.098221351 10514.2307127998 14443697.5946968 1432.46625742849 21.2411540750771 11766.7299196124 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:31 2021-Apr-15 23:22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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