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(2021 AC6)
Classification: Apollo [NEO]          SPK-ID: 54105525
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 .3249479560309127 0.0005004  
a 1.270807144337409 0.00084925 au
q .8578609602754868 6.2684e-05 au
i 20.7911509938909 0.023091 deg
node 299.4253057142639 0.00083427 deg
peri 245.7165411891057 0.022135 deg
M 302.0417223132936 0.07827 deg
tp 2459284.742426753761
(2021-Mar-11.24242675)
0.02932 TDB
period 523.2604356411043
1.43
0.52453
0.001436
d
yr
n .6879939232533875 0.00068966 deg/d
Q 1.683753328399331 0.0011252 au
  Orbit Determination Parameters
   # obs. used (total)      45  
   data-arc span      6 days  
   first obs. used      2021-01-12  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .39403  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-19 05:21:35  

Additional Information
 Earth MOID = .0149032 au 
 Jupiter MOID = 3.41887 au 
 T_jup = 4.968 
[ 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 25.3   .40741 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
2008-Jun-30 18:42 3_23:45 Earth 0.24062854313419 0.200152983631341 0.412912524243886 15.8930203487237 15.8923236126525 2454648.279210680 5745.05254028668 11349383.199725 404.307284098658 56.2884989628078 89485.7959826283 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2011-Jan-12 20:09 8_18:13 Earth 0.180627774432944 0.037073129998243 0.372432280430742 17.8214580539365 17.8206303125333 2455574.339679949 12612.5787269805 9663993.55717966 56.5697240583777 11.8474589231085 80109.0187889288 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2012-Dec-01 13:35 5_02:15 Mars 0.0948304555250443 0.0947359602177951 0.163853098785313 13.248587848448 13.2483599756446 2456263.066141692 7335.23687616472 6467814.20252115 548.670539784232 87.5952958226168 25359.2605754179 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2018-Jul-05 07:58 1_16:14 Earth 0.355806054613934 0.314757482474143 0.399395068952993 19.6659886917384 19.665607900066 2458304.832050846 2413.56007966623 2589390.54691293 296.440401255749 35.128953136818 115301.418501427 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2021-Jan-20 08:13 < 00:01 Earth 0.0189370356060188 0.0188694894507236 0.0190045810945698 14.2714143982708 14.2615519796648 2459234.842111333 0.100736315663579 3363.56994150392 10.3351214060281 -0.058384986972437 608.641908847576 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2021-Jul-23 14:17 06:19 Earth 0.463081811954894 0.46172643745419 0.464454863470315 11.4459323950067 11.4454296902512 2459419.094814169 379.135176852694 158112.506383899 1877.09220692162 64.5270917666013 25484.2798654877 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2028-Jul-07 22:29 4_06:01 Earth 0.427697601228457 0.31954038935062 0.543685649811237 21.8628915829644 21.8626066315799 2461960.436983901 6121.36699356314 6292773.82641456 163.585030383939 26.3349207979839 206587.36173976 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2031-Jan-24 03:01 9_21:56 Earth 0.0554096283605992 0.0263141680103868 0.260391377458879 13.1576915154664 13.1540363440699 2462890.625608112 14276.3729340043 10486879.1660245 25.8182310073138 -28.3611905174954 108915.36259534 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2061-Jul-01 16:38 5_18:50 Earth 0.21746622818758 0.199445204492068 0.385072359796801 11.9557597677174 11.9547349137914 2474007.193161942 8329.97670136021 12104545.0078525 539.428220707494 -66.5163133592661 74336.1268343004 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2071-Jun-30 19:21 02:35 Earth 0.194656125288746 0.194475174846761 0.315688822348618 13.4176657059456 13.4166455094536 2477658.306071829 154.531636764401 11993627.3961328 494.541149575818 87.6000887769986 77154.0004206174 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2081-Jul-01 04:44 3_22:52 Earth 0.2265058651009 0.195993778098113 0.402964028538305 15.4708389454478 15.4700785671512 2481311.697356770 5692.24632071431 11896063.3439546 417.036311644626 59.9223065558896 86163.0578137854 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2091-Jul-04 04:42 5_23:17 Earth 0.299611672346994 0.196329571304015 0.482711749948174 18.0248583733226 18.0243649863128 2484966.695747160 8596.53299039763 10696347.1019346 322.303242312607 40.8477593733652 105530.471285386 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2101-Jul-07 16:56 4_08:08 Earth 0.378567897440263 0.283438131770881 0.484114165965516 20.466996633868 20.4666527450106 2488622.205293683 6248.00689109679 5908274.69121095 238.595996291674 30.8525857641785 139537.839952661 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2104-Jan-23 02:21 4_17:28 Earth 0.0169215513549711 0.0164690825135237 0.106094669287304 13.9993764120787 13.9881241960868 2489551.598031891 6807.49820101616 5033123.07749328 19.6904141229044 -76.729722491166 184299.764575202 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
2104-Jul-23 20:32 8_01:56 Earth 0.456993806341317 0.408017326217228 0.52271383063239 11.4154523798947 11.4149416178324 2489734.355548342 11635.8772503734 5232587.0116125 116.890406567927 -56.1838502037285 2600294.12253571 T 6 CATAB v2.0f-lin.ifort 2021-Feb-19 05:21:36 2021-Feb-19 05:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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