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(2021 AE2)
Classification: Apollo [NEO]          SPK-ID: 54104724
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 .377921661683399 3.5782e-05  
a 1.616992068513003 9.6437e-05 au
q 1.005895739051692 2.1329e-06 au
i 1.064545482822154 8.4344e-05 deg
node 125.427542200114 0.00010524 deg
peri 333.5672816934552 9.4111e-05 deg
M 351.9751492104393 0.00066858 deg
tp 2459217.241513857457
(2021-Jan-02.74151386)
0.0001039 TDB
period 751.0351465381674
2.06
0.067188
0.000184
d
yr
n .4793384193261652 4.2882e-05 deg/d
Q 2.228088397974314 0.00013288 au
  Orbit Determination Parameters
   # obs. used (total)      79  
   data-arc span      77 days  
   first obs. used      2020-12-05  
   last obs. used      2021-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .54594  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-08 13:48:53  

Additional Information
 Earth MOID = .0239699 au 
 Jupiter MOID = 2.95372 au 
 T_jup = 4.250 
[ 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 25.09   .48344 E2021D69 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
1981-Nov-22 05:13 3_23:33 Earth 0.181327451527723 0.135325953871784 0.227366658070597 10.1685922058339 10.1671470361912 2444930.717222464 5733.27649944971 2298551.03090376 5.76736292368773 3.31273017100652 205476.279670005 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
1982-May-08 01:21 1_16:28 Mars 0.0648096450669593 0.0304452808987099 0.100050958141994 9.83842252871674 9.83797352391668 2445097.556051807 2427.74162467294 1775863.60769882 11.7555925242365 10.3020979871236 150220.548536242 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
1984-Jan-27 16:16 7_20:01 Earth 0.0883329107825116 0.0362860164377324 0.140333784773125 7.12871597433932 7.12448337215797 2445727.177719108 11281.1310252399 2592270.69937793 3.16043277826559 0.420257219847774 19645.6933336029 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
1986-Feb-22 08:37 3_03:39 Earth 0.434182183171529 0.377730655851217 0.490633474248439 17.9675770512745 17.967235500739 2446483.858760298 4539.40181309783 2814958.2329846 5.58923207431435 0.274933311522429 45121.9665794026 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2004-Dec-09 13:12 1_01:13 Mars 0.0899993122722084 0.0698590034442295 0.110224013445215 12.1869985937648 12.1867375731034 2453349.050299829 1513.2012877932 1015761.95357192 11.5482057378017 -7.57956963593139 151008.672484686 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2018-Nov-16 22:25 05:34 Earth 0.259502044276307 0.256046251802655 0.262957938720484 12.6350340839958 12.6342214235497 2458439.433733726 333.585808519032 172519.760312938 6.37016979657063 2.79344567539324 231186.567461329 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2020-Sep-22 17:05 00:25 Mars 0.00933891159113352 0.00931513653564805 0.00936269040052925 10.721076036804 10.718216277559 2459115.211461325 24.8218754305329 1221.88590188318 17.5749698413541 13.9747549148146 19453.4780265274 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2021-Jan-17 02:04 < 00:01 Earth 0.0431921350059509 0.043180701456361 0.0432035685301026 5.44594564836185 5.43460633512844 2459231.586006836 0.0501770749557169 567.738092072603 2.15548309307145 0.0426535695645004 6240.35860294053 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2022-Oct-13 18:48 08:06 Earth 0.498537329789584 0.49612792705827 0.500946902630652 4.56370689350409 4.56253563525325 2459866.283176033 486.131356054957 121026.064076117 12.9983702641558 7.43795275909151 245320.129284099 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2023-Feb-21 14:51 04:44 Earth 0.41328570943347 0.409780854522117 0.416790562889458 17.3193886887917 17.3190164393316 2459997.118797122 283.744690741255 174768.628605779 4.96158587074295 0.211362091084525 36352.8222670204 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2048-Mar-10 22:00 1_15:22 Mars 0.0284341502325742 0.0122091676614059 0.0602866407581081 11.2454341013218 11.2445387221285 2469146.416688387 2362.24414002213 1663443.41406394 11.6003157508307 -25.4320376461954 156245.722590108 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2051-Nov-12 02:17 2_15:50 Earth 0.353265442450639 0.307265401926161 0.39927960549531 15.4695763676024 15.4690887946286 2470487.595074852 3829.6754047141 2296890.39617888 7.56057875472319 2.80688233972956 277092.122953364 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2052-Mar-11 18:12 5_23:18 Earth 0.456648995604131 0.423537009736562 0.489756090395906 3.54732767684288 3.54568243681718 2470608.258627276 8598.35355389474 1649361.92683076 9.94235331945319 3.90037664834513 107516.161764184 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
2056-Feb-20 13:58 7_15:55 Earth 0.376056802082082 0.243240004110687 0.508870457524255 16.2353375547175 16.2349011359458 2472049.082012218 11035.2632868319 6622736.5101656 4.84493002027226 -0.236928185155203 37576.2358404435 T 15 CATAB v2.0f-lin.ifort 2021-Mar-08 13:48:53 2021-Mar-08 13:48
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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