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(2021 AF8)
Classification: Apollo [NEO, PHA]          SPK-ID: 54106739
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 70 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5151046711448135 1.3527e-08  
a 2.017651053230345 5.228e-08 au
q .9783495709711414 7.7329e-09 au
i 9.690056655084129 3.0685e-06 deg
node 42.53426707652718 1.1305e-05 deg
peri 168.8580046533037 1.2261e-05 deg
M 23.29113556295031 1.5912e-06 deg
tp 2459328.773960912171
(2021-Apr-24.27396091)
4.2533e-06 TDB
period 1046.809160752224
2.87
4.0686e-05
1.114e-07
d
yr
n .3439022254460484 1.3366e-08 deg/d
Q 3.056952535489548 7.9209e-08 au
  Orbit Determination Parameters
   # obs. used (total)      391  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      2412 days (6.60 yr)  
   first obs. used      2014-12-01  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41509  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-10 05:56:37  

Additional Information
 Earth MOID = .0217344 au 
 Jupiter MOID = 1.90748 au 
 T_jup = 3.631 
[ 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 20.21   .28744 E2021-HE4 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
1905-Mar-21 21:50 < 00:01 Jupiter 1.97754614998894 1.9775458850286 1.97754641494927 2.66172128747136 2.49562021722968 2416926.409385496 0.448635843580877 32.3340031575852 18.5405791139476 75.4508729019626 5033673.99568155 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
1912-May-13 18:27 00:04 Earth 0.0360288102558679 0.0360185726015753 0.0360390501019084 9.89417594733252 9.88669861053848 2419536.268559063 3.71394816869556 676.161698177765 3.85657449503046 40.975326981352 885766.505513872 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
1916-Jul-25 09:20 00:01 Jupiter 1.92496949348449 1.9249691238292 1.92496986314295 2.67738404817243 2.50765787275576 2421069.889124522 1.32389010876616 134.861160255864 9.81904586956151 82.9200311222381 5044337.49981111 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
1935-Apr-21 17:58 00:02 Earth 0.0476961827108901 0.0476925234576184 0.0476998424319846 9.32328004840566 9.3172862845662 2427914.248850967 2.37283265261177 298.046080258986 2.53964071782558 -52.2503140500852 2343394.85525471 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
1955-Jun-05 11:25 00:03 Earth 0.167456494766922 0.167437514299587 0.167475475697926 13.6334552240702 13.6322880839059 2435263.975909334 2.86844436951658 1043.52346656151 6.00763042386937 24.9119985524206 1584016.66956648 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
1958-Feb-18 01:11 00:02 Earth 0.494720940388535 0.494699905247124 0.494741975587342 22.8798130219959 22.8795776245065 2436252.548966911 1.78943250654717 1082.0661689053 5.65434860462866 -14.2173444173352 2862653.19960584 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
1975-Jun-28 18:56 00:02 Earth 0.488020288004885 0.487996375670716 0.488044200366878 22.9020004157544 22.9017620173622 2442592.288550247 2.05169832961418 1206.49032942431 6.69651594242256 8.76627734463814 1497672.64058778 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
1978-Mar-18 17:06 00:04 Earth 0.166893871949558 0.166874215397601 0.166913529574113 12.1940543154266 12.1927449913385 2443586.212795664 4.24479462732326 1185.75603952636 4.92597881660421 -34.2510727761047 2501617.06255516 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
1998-Jun-08 08:43 00:02 Earth 0.21338644942212 0.213371236364133 0.213401662618311 14.6555848639642 14.6547328337623 2450972.863477651 1.97761561729137 805.506804308993 6.00764452350717 19.6543150618002 1587469.85707889 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
1999-Oct-06 03:28 00:02 Jupiter 1.90122882833258 1.90122875651003 1.90122890015525 2.70209175965863 2.53185179408045 2451457.644281910 1.74096835275432 149.92567437271 8.74943413250803 -89.0763451680722 5182822.85300679 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2001-Feb-26 20:00 00:01 Earth 0.392391611529591 0.392377683832466 0.392405539271905 19.3833401394371 19.3829898170028 2451967.333533576 1.32872048173221 725.579464425914 5.38757369816131 -16.8299926023322 2754076.55103988 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2021-May-04 12:14 < 00:01 Earth 0.0224623615360021 0.0224623486325684 0.022462374439437 9.40649422980671 9.39387535729963 2459339.009432883 0.0162375129147514 5.71496477222619 0.643098319671415 -89.7843371986494 4959341.7919173 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2041-Jun-04 20:01 00:02 Earth 0.156927575223933 0.15691513092097 0.156940019793774 13.2908159697478 13.2895384067599 2466675.333934722 2.01044670266584 699.463285332317 6.01673340899219 27.4868088878968 1630508.02456019 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2061-Jun-25 16:39 00:02 Earth 0.437661697551556 0.437643511818818 0.437679883308501 21.2974279920075 21.29714213452 2474001.194064625 1.63433871844615 921.250874457941 6.66403971564539 10.1495807961177 1549779.3539839 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2064-Mar-11 18:13 00:03 Earth 0.222548101155815 0.222531215018593 0.222564987632523 14.1818528907879 14.1810086459485 2474991.259066804 2.54807555751322 947.068942709607 5.21958168835481 -27.2451990205967 2521257.89909901 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2082-Nov-28 11:55 00:02 Jupiter 1.90280792705277 1.90280769575021 1.90280815836106 2.70182667441307 2.53171492302317 2481826.996189332 2.02318519632089 171.642504011803 7.9427934159599 -86.7777284971458 5308600.17865586 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2084-Jun-07 23:51 00:02 Earth 0.202654826720862 0.202638716442084 0.202670937207569 14.2777614036264 14.2768405103746 2482384.493751777 2.18579298069996 866.130170401285 6.16121668722052 21.9556171176417 1634596.40932361 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2087-Feb-25 06:19 00:01 Earth 0.439483677372698 0.439467400857097 0.439499953930669 20.897885484384 20.8975953693222 2483376.763360675 1.45506047609228 839.686792626498 5.56525236249485 -14.8532081982645 2666787.98669696 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2107-May-15 14:49 00:03 Earth 0.0380277918643134 0.038022860017695 0.0380327255666867 9.87617986890826 9.86908281133237 2490760.117362774 2.84142031703524 485.947658830562 3.37419021547133 59.5971799238643 1407698.02270692 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2130-Mar-25 06:45 00:02 Earth 0.132382311590554 0.132373603277939 0.132391020315061 11.4990941810126 11.4973437224992 2499109.781568877 2.46582169720762 569.388983489772 4.77208493326395 -40.3087307334881 2442304.52324461 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2150-Jun-14 03:14 00:01 Earth 0.234978872379146 0.23497016824737 0.234987576557486 15.3940235181325 15.3932869010493 2506495.634735254 1.08510225120205 464.332722835847 6.46707925425632 20.8186971152061 1721498.53148039 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2153-Feb-27 18:44 < 00:01 Earth 0.399283756785236 0.399275345488249 0.399292168097771 19.8872022963029 19.8868667436427 2507485.280649972 0.796218553016692 437.465117760321 5.56137336455022 -16.5111607094454 2678276.45667648 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2166-Mar-29 01:13 < 00:01 Jupiter 1.96192751376297 1.96192698930136 1.96192803822502 2.69432731489588 2.52901960114956 2512262.550858371 0.6540415525327 56.4242780108534 11.2319719934408 -64.6488404008131 5204914.75235055 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2173-Jun-16 02:44 < 00:01 Earth 0.270900641853686 0.270896345983679 0.270904937730422 16.2407343704347 16.2401287440921 2514898.613932621 0.498456134078838 224.569365688092 6.83368887658493 17.479179442613 1579129.7751659 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2176-Mar-05 22:31 < 00:01 Earth 0.333719091926384 0.333715393285828 0.333722790571475 17.6327395749808 17.6322867638575 2515892.438228079 0.402735069120929 194.379657818531 5.30745537308224 -18.4178031495096 2581887.57562643 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2177-Aug-17 17:51 < 00:01 Jupiter 1.91482116176231 1.91482101313977 1.91482131038491 2.70817571179635 2.53958938704396 2516422.243860411 0.387175179920775 40.0206664190949 8.68060619760252 82.0149897532765 5006599.74542611 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2196-Jun-22 13:17 < 00:01 Earth 0.33908997655867 0.339088387149492 0.339091565968792 18.4089017176815 18.4084748683944 2523306.053223850 0.165624303013995 84.127916496153 4.89090812254225 19.6304272038887 3122941.36406431 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
2199-Mar-10 12:02 < 00:01 Earth 0.276492912759195 0.276490750365892 0.276495075155311 16.0585295672908 16.0579294575276 2524297.001600356 0.24118776121569 116.472300698417 5.06449588264257 -22.2387643883558 2710603.11269757 T 70 CATAB v2.0g-lin.ifort 2021-Jul-10 05:56:39 2021-Jul-10 05:56
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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