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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5151605286544422 1.3821e-08  
a 2.018135752895073 5.2093e-08 au
q .9784718715372164 7.7073e-09 au
i 9.697803820607716 3.1334e-06 deg
node 42.56719536430522 1.141e-05 deg
peri 168.9511178717089 1.2307e-05 deg
M 315.8660809449176 2.475e-06 deg
tp 2459328.878998910828
(2021-Apr-24.37899891)
4.2607e-06 TDB
period 1047.186395348589
2.87
4.0546e-05
1.11e-07
d
yr
n .3437783393663767 1.3311e-08 deg/d
Q 3.057799634252929 7.893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      379  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      2373 days (6.50 yr)  
   first obs. used      2014-12-01  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41198  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-16 06:19:55  

Additional Information
 Earth MOID = .0233128 au 
 Jupiter MOID = 1.90787 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 1.97754614697376 1.97754588167822 1.97754641226942 2.66172136375117 2.49562029832476 2416926.409380365 0.449030473990649 32.3651051333781 18.6516067331646 75.6237479964606 4952088.81103592 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
1912-May-13 18:27 00:04 Earth 0.0360287846306282 0.0360185446002476 0.0360390268538631 9.89417539773972 9.8866980552098 2419536.268550662 3.71488460119134 676.324563217568 3.90780344982928 40.9759249972743 873672.470232426 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
1916-Jul-25 09:20 00:01 Jupiter 1.92496949448799 1.92496912427804 1.924969864701 2.67738408627168 2.50765791352517 2421069.889119179 1.32434002676524 134.928094164665 9.92817760979101 82.9219672900606 4970224.69418461 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
1935-Apr-21 17:58 00:02 Earth 0.0476961614002721 0.047692501243036 0.0476998220255368 9.32328008480318 9.31728631830826 2427914.248858771 2.37340155633451 298.114789647725 2.56410695775746 -52.2496318160436 2326228.76952437 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
1955-Jun-05 11:25 00:03 Earth 0.167456558273554 0.167437573330552 0.167475543680416 13.6334570080831 13.6322898685141 2435263.975915349 2.86910599534245 1043.76448757371 6.09420713277354 24.9114144324747 1561160.42976552 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
1958-Feb-18 01:11 00:02 Earth 0.494720876590295 0.494699836718305 0.494741916519681 22.8798110089999 22.8795756114595 2436252.548971406 1.78989858049548 1082.30912841206 5.6577384503386 -14.2172640785084 2860982.27845839 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
1975-Jun-28 18:56 00:02 Earth 0.488020357033987 0.487996438920008 0.48804427517579 22.9020023233475 22.9017639250089 2442592.288553492 2.05220333823842 1206.77988396594 6.77926603925332 8.76564516475378 1479284.99323987 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
1978-Mar-18 17:06 00:04 Earth 0.166893818053468 0.166874156849833 0.166913480330195 12.1940525828367 12.1927432581397 2443586.212804628 4.24588239809639 1186.03501498466 4.92822408830804 -34.2509567072139 2500495.65565209 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
1998-Jun-08 08:43 00:02 Earth 0.213386494064383 0.213371276944522 0.213401711322509 14.6555861102732 14.6547340803219 2450972.863481400 1.97813483657906 805.717585234757 6.0901438323583 19.6534762610588 1565666.76492018 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
1999-Oct-06 03:28 00:02 Jupiter 1.90122882887496 1.90122875678893 1.90122890096111 2.70209179067886 2.53185182723665 2451457.644277739 1.74130787886463 149.940339159921 8.85163201804365 -89.0765484625924 5107287.07121775 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2001-Feb-26 20:00 00:01 Earth 0.392391574650874 0.392377643430464 0.392405505916519 19.3833389928534 19.3829886703654 2451967.333536068 1.32912688785327 725.762537234624 5.38928427584632 -16.8298680424107 2753196.94498609 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2021-May-04 12:14 < 00:01 Earth 0.0224623615451293 0.0224623486369752 0.0224623744532847 9.40649434319077 9.39387547084113 2459339.009432764 0.0162430569742509 5.78280371249258 0.643322189603799 -89.7833453544817 4953859.00500316 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2041-Jun-04 20:01 00:02 Earth 0.156927618011853 0.156915168074146 0.156940068216661 13.2908171394127 13.2895395768855 2466675.333938052 2.01124409526327 699.772562172619 6.10502907951576 27.4856692525714 1606546.96181772 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2061-Jun-25 16:39 00:02 Earth 0.43766175432221 0.437643561210033 0.437679947458594 21.2974295486671 21.2971436912374 2474001.194067356 1.63493653326913 921.622758920199 6.74904063063262 10.1489129334129 1530159.96521616 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2064-Mar-11 18:13 00:03 Earth 0.222548051795149 0.222531159057459 0.222564944872591 14.1818513201264 14.1810070750063 2474991.259071525 2.54908784159229 947.439965523246 5.22138581068055 -27.2452962335105 2520316.85803209 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2082-Nov-28 11:55 00:02 Jupiter 1.90280792801468 1.90280769659692 1.90280815943816 2.70182672939429 2.53171498178758 2481826.996196964 2.0240095355424 171.721914876967 8.03446727550967 -86.7820734302658 5231127.98978349 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2084-Jun-07 23:51 00:02 Earth 0.20265488012591 0.202638763788727 0.202670996671159 14.277762914884 14.2768420219723 2482384.493756443 2.18652250369543 866.451124750571 6.2470334697477 21.9548517326233 1611880.62780701 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2087-Feb-25 06:19 00:01 Earth 0.439483627609226 0.439467345250637 0.439499910010209 20.8978839609859 20.8975938458701 2483376.763363820 1.45558143873488 839.988849678242 5.56711622445878 -14.853368533307 2665894.11231826 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2107-May-15 14:49 00:03 Earth 0.0380278103724207 0.0380228766252178 0.0380327459766699 9.87618032299174 9.86908326919776 2490760.117368400 2.84233744319881 486.122476932546 3.41991962371676 59.5963792432397 1387688.11508648 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2130-Mar-25 06:45 00:02 Earth 0.132382296428627 0.132373585644371 0.132391007625007 11.4990937602196 11.4973433014417 2499109.781572696 2.46650751571944 569.551423552572 4.77657060656249 -40.308831285022 2440447.25592542 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2150-Jun-14 03:14 00:01 Earth 0.234978880882315 0.234970174793596 0.23498758701761 15.3940236816111 15.3932870645624 2506495.634735256 1.08532258613962 464.43782165037 6.56218512815151 20.8189869406038 1696408.87136308 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2153-Feb-27 18:44 < 00:01 Earth 0.399283754985666 0.399275341797019 0.399292168189884 19.8872022338736 19.8868666812109 2507485.280650316 0.796355259332955 437.56420054646 5.56317461185578 -16.5114697513035 2677431.3551747 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2166-Mar-29 01:13 < 00:01 Jupiter 1.96192751261219 1.96192698761014 1.96192803761468 2.69432730563832 2.52901959118676 2512262.550864632 0.654342893909625 56.4966342159323 11.2693674139228 -64.6071668117799 5121132.07364812 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2173-Jun-16 02:44 < 00:01 Earth 0.270900632499362 0.270896335549916 0.270904929455553 16.2407340061961 16.2401283798189 2514898.613931172 0.49863357594871 224.633027379613 6.92882918991891 17.4852730910944 1558061.51725185 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2176-Mar-05 22:31 < 00:01 Earth 0.333719107703891 0.333715407303945 0.333722808108372 17.6327400525899 17.6322872415003 2515892.438227539 0.40281417588091 194.472932331182 5.30903743271699 -18.4185186885096 2581172.40848133 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2177-Aug-17 17:51 < 00:01 Jupiter 1.9148211642701 1.91482101492221 1.91482131361809 2.70817569171205 2.53958936585452 2516422.243846995 0.387574128470468 40.1020335884622 8.75788823060607 82.0748098561652 4932971.68666478 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2196-Jun-22 13:17 < 00:01 Earth 0.339089947516373 0.339088350508555 0.339091544525135 18.4089007957176 18.4084739463725 2523306.053221630 0.166675772420592 84.5475830124037 4.93867160021421 19.664046561449 3098040.8468613 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
2199-Mar-10 12:02 < 00:01 Earth 0.276492946544446 0.2764907770218 0.276495116069938 16.0585306519937 16.0579305423444 2524297.001597716 0.241886239432569 116.853994870632 5.06660048000526 -22.2358590110615 2709030.74959355 T 68 CATAB v2.0g-lin.ifort 2021-Jun-16 06:19:57 2021-Jun-16 06:19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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