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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2981684346845363 0.00030957  
a 1.200943519023008 0.00033443 au
q .8428600698113792 0.00013707 au
i 1.715247616728913 0.0017636 deg
node 292.4835321295002 0.0014843 deg
peri 258.7434480605319 0.0064186 deg
M 291.7095167242476 0.034366 deg
tp 2459291.688482060317
(2021-Mar-18.18848206)
0.0078001 TDB
period 480.7090529606783
1.32
0.20079
0.0005497
d
yr
n .7488937389108163 0.00031282 deg/d
Q 1.559026968234637 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .31353  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:27  

Additional Information
 Earth MOID = .00542887 au 
 Jupiter MOID = 3.39776 au 
 T_jup = 5.249 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459223.5 (2021-Jan-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .29825135854151 0.0003094  
q .8428127288705561 0.00013694 au
tp 2459291.681387846917
(2021-Mar-18.18138785)
0.0077835 TDB
node 292.4816771296477 0.0014784 deg
peri 258.7435815063653 0.0064151 deg
i 1.715478671090214 0.0017631 deg
  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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .31353  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:27  

Additional Information
 Jupiter MOID = 3.39776 au 
 T_jup = 5.249 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.572748145682098E-8 -4.236911064376716E-8 -2.407994145508965E-6 -4.571055048438095E-7 1.984049276520786E-6 5.454817641500983E-7
q -4.236911064376716E-8 1.875293981352002E-8 1.065722889686054E-6 2.023222818355943E-7 -8.78237604432503E-7 -2.4143374354117E-7
tp -2.407994145508965E-6 1.065722889686054E-6 6.058360836224359E-5 1.149690789331664E-5 -4.989001653779696E-5 -1.372083405997486E-5
node -4.571055048438095E-7 2.023222818355943E-7 1.149690789331664E-5 2.185540729046861E-6 -9.478830801729998E-6 -2.604719471350768E-6
peri 1.984049276520786E-6 -8.78237604432503E-7 -4.989001653779696E-5 -9.478830801729998E-6 4.115315073169442E-5 1.130649973493778E-5
i 5.454817641500983E-7 -2.4143374354117E-7 -1.372083405997486E-5 -2.604719471350768E-6 1.130649973493778E-5 3.10852870365445E-6

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 24.78   .4658 E2021-BC6 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_21:39 Mars 0.0682012086518324 0.0663698814637898 0.233806468413505 7.79540662702969 7.79486812127531 2415769.026675526 11378.6998647561 10396790.3655076 14.8320431975356 -76.6950342995581 541894.27744332 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1903-Nov-24 05:51 4_03:35 Earth 0.429034780467208 0.372942468244822 0.485171257086077 7.89452068468489 7.89373397276713 2416442.743896080 5975.45662965282 2806605.42409213 33.9672635702787 -4.50872312237959 92213.067041163 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1946-Jan-24 04:09 3_05:44 Earth 0.00921421763211501 0.00435874796360302 0.042250392801846 8.03278045704587 7.99670063197018 2431844.673059645 4663.54101388341 1691491.16760805 14.5713632615892 -28.3692747919092 48286.5097888046 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1946-Aug-18 14:53 3_05:22 Earth 0.440345167401192 0.425747106733978 0.454950304090178 7.72967707361541 7.72889422143646 2432051.119940254 4642.46941584403 733424.491953629 130.261103712369 -6.98924179752091 36358.6766728385 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1950-Jan-07 02:58 14:48 Earth 0.277213275950389 0.263127461505181 0.291314241902438 16.592853194253 16.5922739191784 2433288.623375950 887.548888177174 710172.549894395 30.9357571173675 8.27812063211097 175054.864831302 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1963-Jul-04 11:25 2_17:10 Earth 0.264868835529725 0.216051266538008 0.313689450610389 15.9608522213972 15.9602219407198 2438214.975437667 3910.24054771594 2434822.7763128 64.4742813600835 1.15289700346608 10458.3279500552 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1966-Nov-23 03:21 5_18:04 Earth 0.436761249405254 0.409239055208747 0.464450388873406 7.96507317238284 7.96430722423664 2439452.639883172 8284.0713198214 1440946.64141542 106.515058256261 17.1884183425691 107607.466583188 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1967-Jun-16 10:05 7_08:40 Earth 0.0217400005045329 0.0136707820755735 0.0836636215865693 7.74828320589248 7.73244918186914 2439657.920280620 10599.7753437906 3273880.52203214 23.6793408465136 -39.0019364695365 105083.952287152 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1971-Jul-27 14:45 6_09:55 Earth 0.33891602961766 0.310449331469073 0.367447420021163 5.76976855416227 5.76840581372038 2441160.114708659 9234.58286342557 1440191.3935476 94.9140719989342 -9.50408294428129 44707.9277021936 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1971-Aug-30 12:15 6_01:50 Mars 0.0964767593136076 0.0779877359918833 0.120699797580025 6.51836655664747 6.51791129624999 2441194.010515114 8750.1377938432 1590669.0310095 52.814705496069 46.4166285841991 179975.424215186 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1975-Jan-15 01:43 1_11:04 Earth 0.121063781262913 0.0915676088170522 0.15056626196136 11.8695490507786 11.8676946746452 2442427.571753450 2104.33614755391 1471657.57437741 17.9730426060849 1.82339172609841 26915.3145093737 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1975-Aug-29 16:58 1_16:43 Earth 0.481553371826451 0.474388245895141 0.488735890826417 8.47313356279611 8.47248052154924 2442654.206814821 2442.52263112365 385745.137600175 87.3723539778465 -21.9882064587036 207930.388914527 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1978-Dec-28 14:33 02:10 Earth 0.479803257304836 0.478049877557891 0.481557037991211 22.7247633444669 22.72451897208 2443871.106180300 130.28765264585 90137.7117797874 156.789828093608 -14.044244147619 103216.071701969 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1988-Apr-29 19:10 6_10:45 Venus 0.14014822024707 0.131903850427611 0.159964275207833 2.06551553887099 2.05800028443097 2447281.298326351 9285.06641215875 2149494.29497982 91.4527030366299 70.1491334035507 71224.0726248432 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1988-Jun-30 10:57 3_03:50 Earth 0.198278026455452 0.133928495115079 0.262702104657333 14.0056243535794 14.0046648421061 2447342.955966371 4550.36684568455 3216429.14042686 45.0385590177259 3.28813750513754 31688.2947782066 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
1991-Dec-04 13:18 9_01:10 Earth 0.382197260303226 0.338632685121029 0.425850203467655 7.0175733034816 7.01657980187727 2448595.054083073 13030.413420315 2193821.22326115 68.2952356227977 7.66580280193612 62985.9180591301 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2000-Jan-08 08:55 5_03:53 Earth 0.259024171787181 0.155457825543896 0.362645039883915 16.0354593844834 16.0348178805197 2451551.871326141 7432.91488266453 5169192.49699355 23.2235336303274 1.97105089284635 47838.4108468837 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2009-Jul-12 07:19 3_12:49 Earth 0.432075816250287 0.358557317195496 0.505594729109292 20.8424780372348 20.8421821636949 2455024.804938459 5088.87970522554 3666141.25858898 112.632888797511 -0.466446610229174 4061.31364940728 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2012-Nov-13 01:43 4_10:47 Earth 0.474956173563355 0.458150855754043 0.491850646041279 8.63250914511685 8.6318592577114 2456244.571356539 6406.57147373435 900724.250822618 119.828014341997 21.1226659196921 133114.410762471 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2013-Jun-24 20:54 3_17:42 Earth 0.0961108224535716 0.0369500717917937 0.15642516629778 11.0026138232126 11.0000938615726 2456468.371136612 5382.11338564163 3024932.04582836 20.8919835339946 7.87559296796469 77771.6098182124 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2016-Dec-13 22:06 4_07:05 Earth 0.336499360642141 0.318582239982208 0.354418105950344 6.03912703615583 6.03781573905617 2457736.421099196 6185.23818349894 894255.471491749 51.1904055915335 3.03342399935271 25790.2319478521 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2017-Apr-21 17:21 8_10:11 Earth 0.153720783632108 0.147309398234259 0.160144590904118 6.93195569338891 6.92945475876524 2457865.223146311 12131.2844063852 327356.865270118 72.766748576983 12.3172470290286 41849.6316073205 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2021-Jan-26 01:01 < 00:01 Earth 0.0278950559727266 0.0278093489319118 0.027980761197726 7.40953073094182 7.39662826543962 2459240.542148472 0.261304371640479 4259.03150846551 8.56519541769304 -0.183016651671348 578.249747294812 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2021-Aug-16 06:30 01:41 Earth 0.432432781303239 0.431013561180617 0.433852009356465 7.58219356332093 7.58138087848569 2459442.770844037 100.682381880915 70831.1970996231 200.73499493395 2.55512562291533 9703.8999957539 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2025-Jan-08 12:30 1_12:39 Earth 0.243752746733632 0.212485110470948 0.275024017022665 15.5618664056749 15.5611639628873 2460684.020825131 2198.99103213572 1559987.38498722 25.8656808958306 1.78769609722634 36921.3632805118 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2038-Jul-08 20:15 5_22:15 Earth 0.361718631266065 0.24212507937769 0.481310223957992 18.8029160436848 18.8025242830493 2465613.343816989 8534.98744355852 5963450.30259151 98.4672990282138 0.102284755850174 778.86392729717 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2042-Jun-25 05:02 8_21:54 Earth 0.102732226325111 0.0128602446858503 0.2475825963638 11.2193426079207 11.2170306336508 2467060.710031582 12834.103164053 7246513.9328599 23.6394660078706 7.20822911573022 66675.9852757881 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2054-Jan-18 15:56 5_21:23 Earth 0.0656287771778426 0.00482736232765039 0.162215987398438 10.191113696228 10.1871291276375 2471286.163550302 8483.48013185952 4821477.62491044 16.4794983906328 4.24780857335897 37332.3889807611 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2054-Aug-24 18:47 6_13:55 Earth 0.465694416387598 0.435768644624256 0.495887922919956 8.1698196276901 8.16911927391672 2471504.282942356 9474.73284421504 1599051.98396628 105.383670734647 -20.3613518035295 148424.896062826 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2058-Jan-03 22:33 09:35 Earth 0.347981566188739 0.332516523753218 0.363446691771116 18.7220744337662 18.7216654492235 2472732.439248608 575.414974369377 771227.859089544 52.1088507034965 -0.7415848681355 11244.2342150559 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2063-Oct-18 01:00 2_12:07 Mars 0.0768131073838111 0.0671290652083517 0.135489271258854 8.39719563283888 8.39675177073689 2474845.541596695 3607.18352956686 4007075.81492659 34.3280396244266 -60.9210288773263 258279.315686649 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2067-Jul-15 21:12 7_16:38 Earth 0.495109393661928 0.328534104663893 0.661702035750926 22.7206566478953 22.7204197874314 2476212.383591550 11077.7425660326 8308154.7009889 140.232464666152 -0.994369020914908 8119.76312839071 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2083-Jan-18 14:30 1_18:10 Earth 0.0699788172545757 0.0225794823377345 0.117656609946229 10.3331403923365 10.3294549392762 2481878.104394945 2529.8342140288 2380765.005322 18.4577404142183 4.01657577184439 33462.9906983825 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2083-Aug-25 22:35 3_04:48 Earth 0.466855333895998 0.449462081470853 0.484289584223729 8.19839169862373 8.19769552140512 2482097.440994601 4607.75726072259 895341.643838207 117.788237598008 -14.1240777951441 98893.9045249278 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2087-Jan-01 15:43 6_14:07 Earth 0.402205361439726 0.288313370888589 0.516262591452102 20.3796165977127 20.379291531407 2483322.154545783 9486.96784579981 5697974.89760654 35.5532883460137 3.93934320463635 98974.2555442232 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2103-Dec-16 08:32 7_05:55 Earth 0.339350939120816 0.264355627640327 0.415178523200962 6.07142695848202 6.07013360038369 2489513.855263683 10434.89165003 3852783.21562786 75.9538741808389 -12.3624251719251 72540.1888133769 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2190-Nov-26 06:21 3_09:30 Earth 0.433162572004127 0.395696966726264 0.471367556737654 7.93284818924566 7.93207273975188 2521270.764926315 4890.24712896987 2087203.73698313 52.228888873738 -25.2256891497231 407760.130688947 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
2191-Jun-18 00:56 5_22:18 Earth 0.0282202154619784 0.0134233503161926 0.162025356903529 7.47542599792606 7.46278493947296 2521474.538925057 8537.54563336019 6814905.21461016 18.368956083167 -28.4410883914802 122997.615332735 T 10 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:27 2021-Apr-15 23:22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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