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(2021 AL)
Classification: Apollo [NEO]          SPK-ID: 54104252
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2981684373361486 0.00030957  
a 1.200943522450422 0.00033443 au
q .8428600690324101 0.00013707 au
i 1.715247619479227 0.0017636 deg
node 292.4835313715541 0.0014843 deg
peri 258.7434488132135 0.0064186 deg
M 291.7095171227477 0.034366 deg
tp 2459291.688481918567
(2021-Mar-18.18848192)
0.0078001 TDB
period 480.7090550185466
1.32
0.20079
0.0005497
d
yr
n .7488937357048757 0.00031282 deg/d
Q 1.559026975868435 0.00043414 au
  Orbit Determination Parameters
   # obs. used (total)      56  
   data-arc span      31 days  
   first obs. used      2020-12-23  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .31353  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-28 06:47:26  

Additional Information
 Earth MOID = .00542887 au 
 Jupiter MOID = 3.39776 au 
 T_jup = 5.249 
[ 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 24.7   .4658 E2021D54 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
1902-Jan-19 12:38 7_23:11 Mars 0.0682010285604445 0.066372198624896 0.235379898305993 7.79539367394218 7.79485516587848 2415769.026709143 11471.0141236212 10479087.3465328 14.8203840937209 -76.7041340165849 540551.844413426 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1903-Nov-24 05:51 4_02:40 Earth 0.429034974855323 0.372919942808923 0.485196695652367 7.89452328034861 7.89373656904614 2416442.743882534 5920.46812753381 2808277.33599489 34.3457861385167 -4.62711244704301 93499.6763642397 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1946-Jan-24 04:09 3_06:16 Earth 0.00921411297431582 0.00436103492719178 0.0424773650760038 8.03278449910723 7.99670428154085 2431844.673048294 4695.52483111189 1702926.46435368 14.4483123794691 -28.3857055654582 48730.8006307069 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1946-Aug-18 14:53 3_05:51 Earth 0.440345217488468 0.425660562752954 0.455037165031359 7.7296781418356 7.72889528985404 2432051.119952601 4670.7693828735 737877.806129747 130.103621418454 -7.05113506496591 36728.1039233179 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1950-Jan-07 02:58 15:00 Earth 0.277213328703783 0.262946415662365 0.291495501522794 16.5928548681298 16.5922755932239 2433288.623373764 899.840478722201 719164.946744617 30.4045964753277 8.20323793408176 176430.286054987 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1963-Jul-04 11:25 2_17:12 Earth 0.264868996893012 0.216030276286149 0.313710767465458 15.9608570037631 15.9602267236586 2438214.975446595 3911.65410626663 2435877.96443294 64.4738703887551 1.15307117071883 10459.9948923528 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1966-Nov-23 03:21 5_18:13 Earth 0.436761339440931 0.409209019682746 0.464480985187494 7.96507468780054 7.96430873995812 2439452.639864854 8292.96866035134 1442534.29556937 106.51681881817 17.189009203904 107609.887548705 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1967-Jun-16 10:05 7_08:51 Earth 0.0217398326475487 0.0136708132994897 0.0837387204844845 7.74828965801604 7.73245552482547 2439657.920305301 10611.4592862911 3277688.42751544 23.6790044533967 -39.002400322687 105085.614329281 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1971-Jul-27 14:45 6_10:13 Earth 0.338915934587409 0.310394761171392 0.367502082609943 5.76976617186767 5.76840343048107 2441160.114685090 9252.83485333772 1442961.39609377 94.9089462375699 -9.50631532288729 44719.7697958815 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1971-Aug-30 12:15 6_02:08 Mars 0.0964766861841418 0.0779593338507934 0.120751342936308 6.51836780710901 6.51791254646017 2441194.010493769 8768.31575190391 1593810.02523446 52.8116514565681 46.4158348017801 179982.1295567 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1975-Jan-15 01:43 1_11:12 Earth 0.121063682643743 0.0914680466580428 0.150665681290238 11.8695461237568 11.8676917456556 2442427.571758645 2112.27583603366 1476622.15333772 17.9649341533357 1.8244676259202 26942.4176493093 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1975-Aug-29 16:58 1_16:53 Earth 0.481553346678153 0.47436050349067 0.488763752148625 8.47313307621175 8.47248003489338 2442654.206808139 2452.99868178906 387292.865163015 87.3259286678072 -22.0075218714153 208184.453810099 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1978-Dec-28 14:33 02:05 Earth 0.479803249673613 0.477963623281133 0.481643269363437 22.7247631827019 22.7245188103095 2443871.106180121 124.536017999121 94267.1929455412 151.435908969769 -13.2866377427169 101133.987882919 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1988-Apr-29 19:10 6_10:37 Venus 0.140148172548485 0.131904472613612 0.159942768128377 2.06551569509498 2.058000438663 2447281.298347350 9276.61322276022 2147552.50204733 91.456140045667 70.1482033237039 71222.6504199424 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1988-Jun-30 10:57 3_03:46 Earth 0.198277815140898 0.133985002566348 0.262645035739951 14.0056182562398 14.0046587433262 2447342.955955445 4546.01277959739 3213591.72433361 45.0380203353187 3.28830760474264 31690.2836145472 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
1991-Dec-04 13:18 9_01:03 Earth 0.382197115016407 0.338656647958597 0.42582584809708 7.01757055081412 7.01657704844252 2448595.054113335 13022.9826713495 2192604.96200273 68.2944989721873 7.66568518513988 62985.785969911 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2000-Jan-08 08:55 5_03:51 Earth 0.259024517945686 0.155484765692169 0.36261876371753 16.0354699443652 16.0348284416814 2451551.871308560 7431.11772853887 5167864.76681646 23.2223449675461 1.97113698645497 47842.8981787791 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2009-Jul-12 07:19 3_12:49 Earth 0.432075570658646 0.358562007858553 0.505589547089491 20.8424708900676 20.8421750162581 2455024.804926946 5088.51241859102 3665895.08181757 112.632724804183 -0.4664148024669 4061.03583261686 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2012-Nov-13 01:43 4_10:46 Earth 0.474956116152818 0.458151248992216 0.491850132277024 8.6325083025954 8.63185841504808 2456244.571370861 6406.36613595496 900699.407259473 119.827743413897 21.1225677537385 133114.164865358 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2013-Jun-24 20:54 3_17:42 Earth 0.0961106210625423 0.0369513922136081 0.156423354764793 11.0026079825739 11.0000880143154 2456468.371124011 5381.95967393805 3024851.54041683 20.8919223396263 7.87561153324184 77771.8485419249 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2016-Dec-13 22:06 4_07:05 Earth 0.336499299874411 0.31858230081207 0.354417923545651 6.03912551290412 6.03781421523705 2457736.421114428 6185.19011143574 894249.393519425 51.1903374756578 3.03341420563006 25790.1812867005 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2017-Apr-21 17:21 8_10:11 Earth 0.15372080442322 0.147309461699007 0.160144568880933 6.9319566003115 6.92945566635391 2457865.223117378 12131.2020147075 327354.700400667 72.7668252337824 12.3172594554694 41849.6406360384 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2021-Jan-26 01:01 < 00:01 Earth 0.0278950561878085 0.0278093491616487 0.0279807613981545 7.40953079260671 7.39662832731394 2459240.542148702 0.261306347935569 4259.03078102483 8.56519538650488 -0.183017205751848 578.249859331943 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2021-Aug-16 06:30 01:41 Earth 0.432432784907051 0.431013564884961 0.433852012859744 7.58219373497633 7.5813810501664 2459442.770844592 100.682383142986 70831.1920988495 200.734999236762 2.55512589375388 9703.90145563426 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2025-Jan-08 12:30 1_12:39 Earth 0.243752642132372 0.212485177734279 0.275023740497074 15.5618633236081 15.56116088038 2460684.020829262 2198.97686511834 1559978.80527655 25.8658017891614 1.78769146558836 36921.0856970312 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2038-Jul-08 20:15 5_22:14 Earth 0.361719040876747 0.242141535907311 0.48129458712203 18.8029281159639 18.8025363560237 2465613.343837359 8533.90774537662 5962650.13503069 98.4676025608409 0.102240349431954 778.491595261104 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2042-Jun-25 05:02 8_21:52 Earth 0.102732720493427 0.0128602296279506 0.24755327355207 11.2193572396391 11.2170452795076 2467060.710061581 12831.5594329962 7245024.86966353 23.6396514655129 7.20818575168939 66675.4256736404 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2054-Jan-18 15:56 5_21:17 Earth 0.0656284471880183 0.00482718563302614 0.162141441566169 10.191103803103 10.1871192106046 2471286.163569402 8476.51909412351 4817774.85696368 16.4810471419443 4.24767518695646 37327.7903075048 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2054-Aug-24 18:47 6_13:47 Earth 0.465694312709777 0.43579213973372 0.495863762253482 8.16981805321253 8.16911769914836 2471504.282920848 9466.79014208961 1597772.09993518 105.386848260851 -20.3602348242387 148414.650405146 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2058-Jan-03 22:33 09:32 Earth 0.34798151581037 0.332569819328187 0.363393298153216 18.722072971695 18.7216639870613 2472732.439248945 571.730364261228 768569.468891839 52.1725254060908 -0.752129785211981 11393.0735828485 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2063-Oct-18 01:00 2_12:07 Mars 0.0768129649918753 0.0671290003934484 0.135505322917094 8.39719011513809 8.39674625192783 2474845.541606455 3607.32559107133 4008007.93915343 34.3286287894066 -60.9211204421115 258277.672144884 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2067-Jul-15 21:12 7_16:38 Earth 0.495108819051079 0.328534497236181 0.661700500541249 22.7206397618338 22.7204029009189 2476212.383563637 11077.9606345187 8308107.12945436 140.234364689113 -0.99454623144053 8121.10177155046 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2083-Jan-18 14:30 1_18:03 Earth 0.0699789869131641 0.0226582714833321 0.117576371675659 10.3331456259405 10.3294601836848 2481878.104388555 2522.94369576215 2376751.44686362 18.4613627238778 4.0161932567102 33453.4733721968 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2083-Aug-25 22:35 3_04:39 Earth 0.466855395528444 0.4494874432127 0.484264147945348 8.19839251542571 8.19769633836849 2482097.441005127 4598.85704599496 893984.896855912 117.815743491445 -14.1111635225425 98789.5560580383 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2087-Jan-01 15:43 6_14:10 Earth 0.402204969475799 0.288266163971094 0.516309085887551 20.3796047711884 20.3792797043773 2483322.154566976 9489.69559070775 5700311.45450123 35.5644970173514 3.93844205704123 98921.7870985 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2103-Dec-16 08:32 7_06:32 Earth 0.339350679856923 0.264235704388641 0.415296826108525 6.07142216585962 6.07012880575213 2489513.855288329 10472.1614207613 3858460.06238829 75.8024334807038 -12.3351640859493 72533.4824599973 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2190-Nov-26 06:22 3_22:33 Earth 0.433162439937337 0.393521543515214 0.473500848101512 7.9328471327047 7.93207168287133 2521270.764937944 5673.38251268792 2174441.00515739 53.6138086703432 -23.4026285502729 378866.845728701 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
2191-Jun-18 00:56 6_14:12 Earth 0.0282206283552039 0.0133743641749337 0.167449711440409 7.47541294295057 7.46277204749317 2521474.538903344 9491.72874224183 7085158.98981459 18.5924108656563 -28.3277258875639 122605.672504283 T 9 CATAB v2.0f-lin.ifort 2021-Jan-28 06:47:26 2021-Jan-28 06:47
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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