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JPL Small-Body Database Browser
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(2021 JT4)
Classification: Aten [NEO]          SPK-ID: 54144927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2118879498412302 1.2785e-05  
a .9450772274708715 0.00033529 au
q .7448267513004346 0.00025477 au
i 37.51491099167339 0.039052 deg
node 227.191382798463 0.00041496 deg
peri 236.8597869979712 0.098424 deg
M 158.6528315533559 0.14936 deg
tp 2459248.607993396100
(2021-Feb-03.10799340)
0.060532 TDB
period 335.5825537818956
0.92
0.17858
0.0004889
d
yr
n 1.072761369573384 0.00057088 deg/d
Q 1.145327703641309 0.00040633 au
  Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      3 days  
   first obs. used      2021-05-08  
   last obs. used      2021-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .33479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-11 15:42:04  

Additional Information
 Earth MOID = .0115258 au 
 Jupiter MOID = 4.12191 au 
 T_jup = 6.166 
[ 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 25.71   .30625 MPO622852 autocmod 2.9c

[ 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
1953-May-22 01:09 7_22:17 Earth 0.455497152741751 0.250464771383078 0.661028631386593 26.8072312195793 26.8070130086506 2434519.548026030 11417.3172284949 10264162.1856644 89.2695362414467 3.75541281480419 43647.3134627074 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1954-May-07 10:09 4_06:46 Earth 0.0135747949182497 0.010890440175142 0.188942466519503 19.1427527753655 19.1324964675192 2434869.923218054 6166.22232840524 9002281.909585 28.2579378030203 -53.359755653485 73623.9426632992 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1955-May-02 23:43 1_02:45 Earth 0.467170730573808 0.378250366370213 0.677183142571997 20.061330760108 20.0610464580061 2435230.488406131 1605.12819749937 14337886.1631182 2577.62351639762 -54.0666882307542 20171.636389038 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1962-Apr-03 15:56 3_23:11 Venus 0.104948479046557 0.0814320600240269 0.328971701746554 24.4074378127866 24.4065900425846 2437758.163834919 5711.31449631799 12593446.6250618 791.953541393382 -50.9027890847297 16015.7399366523 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1965-May-09 09:09 5_15:03 Earth 0.0775493337869388 0.0133456102551004 0.283262151490587 19.9882215932046 19.986502581612 2438889.881538805 8102.65955272271 10300096.1944966 17.8876439012381 9.91429596785591 89892.9944203103 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1967-Oct-13 04:51 5_13:18 Venus 0.144321328468337 0.0968595981457228 0.404345477716689 26.5790255057708 26.5784593916354 2439776.701976573 7998.32674071143 14241564.7241066 1068.99708374727 42.1663917942257 13822.25597374 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1976-May-12 02:25 6_13:34 Earth 0.176012728009381 0.0179205423570846 0.387607335986791 21.3468951387287 21.3461859843647 2442910.600510677 9453.71410747865 10576289.3919008 35.9847579235625 5.84596041267783 61444.5271086328 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1987-May-15 14:04 6_12:13 Earth 0.259095312420518 0.0666816687635054 0.453752074763705 22.7435899972031 22.7431378309975 2446931.085886428 9373.00496756353 9725563.7986934 53.5708007372736 4.72470020094222 50294.4344313832 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1988-May-03 05:43 2_11:50 Earth 0.210942653567653 0.139265608093804 0.433955278789541 18.4252251834067 18.4245396269473 2447284.738372500 3590.33731836754 12594699.4697256 388.327587217599 -41.3188031984358 45412.9426412744 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1998-May-17 23:12 5_15:19 Earth 0.33413205616903 0.174907680014584 0.493859342689507 24.1831621716012 24.1828324221464 2450951.466729851 8119.47237690073 7978653.46334038 67.6236120338401 4.08936101516651 45308.0704782678 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
1999-May-05 04:07 2_17:58 Earth 0.136678889683731 0.0438479153633431 0.297655100937966 18.4572455635641 18.4561893385441 2451303.671512311 3958.30286613312 8225615.8792209 55.7448743881456 -18.714474751884 85210.9341440869 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2009-May-20 07:17 3_19:18 Earth 0.404513668617247 0.301494089512027 0.507650365002872 25.6666890666504 25.6664324342551 2454971.803283318 5478.06766011716 5151537.55700827 79.6727946322844 3.70004020945286 42713.1169046988 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2010-May-06 08:19 2_02:48 Earth 0.065935720031618 0.0151367996894492 0.165859694273052 18.736548209537 18.7343913244049 2455322.846512293 3048.38554744345 5036157.86058446 28.5561770456773 -13.2770865731534 113552.427384829 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2010-Nov-25 21:32 7_17:41 Earth 0.303392892383482 0.240999530237672 0.385056536056999 21.5405559264591 21.5401482138366 2455526.397363547 11140.6679896743 5260212.62026258 695.024073454924 45.2106868767462 39928.7963775841 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2011-Oct-22 01:22 5_18:39 Earth 0.286119548298773 0.24869335356249 0.369682474456548 24.0815521126896 24.0811654040826 2455856.557208406 8318.74479424684 6576366.32615996 328.416354032263 -60.2850434221705 83422.3389615943 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2018-Mar-29 01:05 12:21 Venus 0.13760400092018 0.114072042140267 0.164866810786141 24.2804621196407 24.279812159463 2458206.545284089 740.647795161988 1699764.23761989 424.396185141027 -40.9585535605686 34712.4278884262 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2020-Jan-31 00:05 04:51 Venus 0.0894913582814846 0.0860547322776249 0.0951195046188899 24.5508596781954 24.5498712846878 2458879.503161512 291.300001893808 736047.964478882 21.383970662775 -71.8911470104402 284521.888016626 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2020-May-22 14:45 06:52 Earth 0.472116177359241 0.463926944819255 0.480306562571941 27.1913901415032 27.1911825862541 2458992.114691855 412.060747671077 410046.066731325 93.4894374238434 5.14915001358909 58662.390949209 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2021-May-07 17:31 < 00:01 Earth 0.0122769652164703 0.0122385987836104 0.012315331365843 19.2529940397643 19.2417181648368 2459342.229651615 0.042479921747348 1910.90739640311 9.81484003470171 -0.0117466998563746 763.665403672204 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2021-Dec-01 20:22 11:16 Earth 0.363598772987292 0.358002132184955 0.369399942251035 21.805414798801 21.8050787294231 2459550.348755875 676.110084753034 515477.556491915 1976.54813260978 56.5341849047145 21363.0105802638 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2021-Dec-03 21:27 04:34 Venus 0.0810514434128213 0.0809817118719087 0.0865427214619437 25.1043956464085 25.1033283927481 2459552.393495658 274.215399963385 1386877.66997416 1339.48516689945 88.1338366588789 9170.90157652426 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2022-May-02 21:56 03:32 Earth 0.449454551573949 0.441900858182844 0.457491769777578 19.8875974023595 19.8872993122894 2459702.414017620 211.539138511116 831670.885205402 2158.73320233856 -62.1181257311209 25913.8828438985 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2022-Oct-27 12:44 1_04:19 Earth 0.228077921651074 0.218885918094834 0.240179726857488 23.0762727944048 23.0757665407057 2459880.030839248 1699.44612055673 1391923.13479047 1008.60994211615 -67.4271203355745 28662.8136966369 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2023-Oct-07 20:16 15:35 Venus 0.110191260373374 0.101418856489313 0.138548028088812 25.847600413524 25.8468379694922 2460225.344702158 935.295030592198 2559463.25517705 1413.69644533548 67.0041018380884 10903.3350984559 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2032-May-10 23:28 3_00:08 Earth 0.132522396156217 0.0340499660643446 0.233520121722111 20.7068230226869 20.7058520214389 2463363.477865911 4327.91446366989 5056748.9246968 26.203390462553 6.84308681706701 75470.5499133931 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2033-Nov-05 03:48 8_08:05 Earth 0.178113255091438 0.17785337551885 0.331951922986208 21.9708942087237 21.9702133216133 2463906.658588561 12005.0994465555 13509936.2169399 700.06073840587 -86.9893820589606 33507.1637302875 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2043-May-15 07:28 6_05:52 Earth 0.244582162859423 0.0600611622614895 0.43157501314867 22.4956070152327 22.4951227374628 2467384.810876105 8992.2264006723 9343945.28987408 49.2439185310148 4.90857660387855 53391.6569306273 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2044-May-03 07:03 2_06:17 Earth 0.223085262871792 0.16150454340535 0.458869930953207 18.4525090310919 18.4518617488893 2467738.793640231 3256.68913646363 13744186.5171903 474.928370370595 -46.3861012168526 43544.9389594161 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2054-May-18 14:51 9_03:37 Earth 0.346042150955852 0.094285429164179 0.599707708056192 24.4303690148362 24.430053836667 2471406.118817933 13176.8791858029 12666774.2059823 69.3310861825877 3.97226054959643 44594.2741255212 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2055-May-05 14:53 4_17:07 Earth 0.122841636552996 0.0345075899346593 0.389381473146066 18.4994426955828 18.498270171204 2471758.120383100 6787.48760857092 13461598.5759417 30.4564119571992 -16.3174402443782 117214.862705541 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2066-May-07 07:52 6_14:12 Earth 0.0317218352414958 0.0113958764114564 0.319362001930955 18.964332424341 18.9599027967484 2475777.827846297 9492.29543461691 14439026.6362297 31.726064065512 -21.0638499961511 68151.3542965418 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2076-May-23 20:57 12:04 Earth 0.498156973399292 0.486391620823486 0.509926785356756 27.7724066247287 27.7722140345513 2479447.373062533 724.012918835957 591489.8879087 76.0574349433597 7.21887309509111 101278.694390393 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2077-May-08 14:05 1_00:05 Earth 0.0325985414412817 0.0112420398387822 0.0708360166903091 19.4791523457529 19.4749558100925 2479797.086927699 1444.52465700721 1961756.99160369 25.845270782661 20.183015594033 81209.2074411808 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2077-Dec-04 05:11 5_04:01 Earth 0.384156845254493 0.336756834582064 0.435719105098562 21.917652918423 21.9173364627609 2480006.716211132 7441.31922428179 3174113.5372941 1060.91430061584 38.5955924192197 30127.8634264552 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2078-May-03 00:06 02:49 Earth 0.427276331987698 0.386944870852759 0.499562344864722 19.6679049040986 19.6675878386482 2480156.504289869 169.138460761902 6516929.53116702 2174.60076398453 -63.4506675690603 23870.0898329923 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2078-Oct-29 08:26 5_21:45 Earth 0.214616515988713 0.205351870151595 0.309864820377209 22.8346063073502 22.8340626054404 2480335.851478087 8505.38883483765 8462540.96207442 707.211636118101 -73.1160247344062 37317.1722257721 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2079-Oct-04 08:40 2_04:26 Venus 0.107544489640577 0.0801445634209357 0.224109663572303 24.3852580140862 24.3844299560022 2480675.861423168 3146.30914839525 6861037.8031141 923.66565900248 -48.1914939048534 13459.3729361184 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2081-Aug-07 10:18 3_12:14 Venus 0.0797446287650752 0.0787954565208374 0.2752859644904 24.7647344215117 24.7636347993802 2481348.929187461 5053.96035907117 12546580.6275265 834.067038735885 -81.2295186197676 14670.6170701204 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2132-May-24 11:23 5_08:38 Earth 0.48218175796478 0.351897900605136 0.612632312649865 27.4206934676593 27.4204919446022 2499900.974296189 7717.94063580673 6516241.29225161 92.6538519223499 3.7928098886405 45047.9418109827 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
2133-May-09 07:52 5_17:02 Earth 0.0162159897724279 0.0108186132768755 0.24317320090895 19.3205728871536 19.3120665124303 2500250.827466722 8221.5259480224 11511905.1446127 29.9462779177037 41.8625322048759 66683.6258346175 T 1 CATAB v2.0g-lin.ifort 2021-May-11 15:42:04 2021-May-11 15:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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