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(2020 HW2)
Classification: Aten [NEO]          SPK-ID: 54016641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458959.5 (2020-Apr-20.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3754547505066297 0.0021462  
a .8135713632319932 0.00052108 au
q .5081121300303866 0.0020715 au
i 3.290626747580141 0.019729 deg
node 91.44688606670223 0.046914 deg
peri 271.3681507682043 0.044984 deg
M 236.6314993722812 0.22094 deg
tp 2459051.353073515681
(2020-Jul-20.85307352)
0.25274 TDB
period 268.0352464153685
0.73
0.25751
0.000705
d
yr
n 1.343106941398728 0.0012904 deg/d
Q 1.1190305964336 0.00071672 au
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      4 days  
   first obs. used      2020-04-18  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .39975  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-22 03:42:08  

Additional Information
 Earth MOID = .0446038 au 
 Jupiter MOID = 4.33368 au 
 T_jup = 7.127 
[ 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 24.865   .31141 1 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
1957-Apr-21 11:19 2_08:30 Earth 0.348887364960247 0.260689329355285 0.437292704418893 20.7236270375023 20.7232585139838 2435949.971810434 3390.07398900845 4423626.30149864 1908.26655679675 -5.33628777310818 2184.01350779432 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
1959-Feb-19 11:32 3_02:38 Earth 0.318763947960695 0.149585480524598 0.489794535780124 19.7532674185431 19.7528442543924 2436618.980706279 4477.6687338277 8568648.63840908 4641.10067209201 -6.8851956442905 1089.5053965412 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
1970-Feb-14 20:56 9_04:49 Earth 0.205526533004223 0.0443023142232963 0.447701243594658 16.0246807380303 16.0238717054004 2440632.372566618 13248.9467837773 12207828.163621 4732.77101253088 -12.4683859497251 1252.52722550475 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
1992-Feb-13 13:15 5_05:30 Earth 0.152624757876059 0.0407072471829444 0.284833587957476 14.2679466844189 14.2667230702035 2448666.051819725 7529.88047029212 6708606.7659806 3954.29186851671 -14.6301034836427 1321.92010065714 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
1998-Apr-29 06:06 6_03:49 Earth 0.141433383642945 0.0493235084351711 0.357388210862882 13.8873007434896 13.885944106051 2450932.753954922 8869.2618135773 11041313.3258096 1792.62488090489 -20.4301371655573 3502.44281234828 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2003-Feb-15 03:59 7_16:08 Earth 0.214908449222506 0.0329791194722869 0.433627794233791 16.365071952412 16.3643143331632 2452685.665816193 11048.368896949 10970881.9219876 3834.61634309878 -8.83736278448143 1145.39279760446 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2009-Apr-30 07:48 00:08 Earth 0.064783026804437 0.0466834486713571 0.218212024095471 11.0652183937854 11.0615007815133 2454951.824791058 7.50978886420629 8391295.18576461 1612.2575085991 -46.1593607178809 3704.72847433132 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2012-Apr-18 15:03 5_03:42 Earth 0.421854651762542 0.296854974323027 0.5478723191438 23.2061442791316 23.2058721036042 2456036.127307677 7422.40985516575 6343399.29453888 2197.44349903653 -8.95513447168486 3964.21695642613 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2014-Feb-17 06:39 3_08:34 Earth 0.276206186583905 0.192847702880799 0.359835208994511 18.389186249823 18.3886616566456 2456705.777423687 4834.35221827285 4185756.64831907 3819.20027275121 -5.65180086839478 941.212569954968 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2014-Aug-24 21:00 9_08:27 Earth 0.480503949275677 0.463452154616887 0.498567716454528 17.475773674526 17.4754563651344 2456894.374993595 13466.6978040877 1405833.48824111 2990.98149956966 51.4358579600902 11757.9655453384 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2017-Feb-23 01:35 7_12:05 Earth 0.0987280373559763 0.0785702506799463 0.119184969837205 7.62818879740998 7.62465003693946 2457807.565674508 10804.9258782101 1048324.17279048 3275.49696060028 14.6210999472119 1420.22122854734 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2017-Jul-08 05:40 7_12:53 Earth 0.376537803437319 0.349928623887413 0.403380841078272 9.50730365194442 9.50655932557046 2457942.736284039 10853.239580382 1412502.98595531 3397.5825880265 19.3623032887624 2312.78670821029 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2019-Nov-18 14:00 16:03 Earth 0.417812842489822 0.410296374690261 0.425330270149042 13.4949751293317 13.4945025593975 2458806.083290053 963.001633847787 376167.707811341 652.247345896866 -4.89501157642954 4820.09972591508 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2020-Apr-29 12:23 < 00:01 Earth 0.0459913392276687 0.0450979421574256 0.0468846936430952 9.75026501076234 9.74432137385035 2458969.015756373 0.93912489856401 44494.2195091533 63.8182443896611 -0.0271011935033039 98.2398785995235 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2020-Jun-11 14:40 17:07 Venus 0.0195204844942044 0.0174339840194859 0.0216987288751211 14.2764799754691 14.2686856994622 2459012.111219498 1027.36211131292 125581.85910104 2864.62405407867 -31.9624149742221 507.573978501785 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2021-May-22 20:43 1_04:40 Venus 0.013688102122186 0.0104825981204151 0.0527723844937719 13.9216520951934 13.9102518868805 2459357.362928343 1720.16188589533 2143408.70074225 3054.54767544743 50.3927163691685 507.175836841287 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2022-Oct-06 18:24 5_15:43 Earth 0.491054693854808 0.480545781437399 0.501979385639107 19.0017037816648 19.0014182244024 2459859.266714965 8143.34434513395 890727.94923258 777.956188907701 -53.1167602061076 51692.5857411391 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2023-Apr-21 03:47 2_10:18 Earth 0.385987704209497 0.332089603665835 0.439995588457383 22.0174858947376 22.0171723682393 2460055.657433995 3498.43753122413 2709931.08098958 2204.41631946041 -6.82091582537949 2716.60012564375 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2025-Feb-18 18:08 4_07:32 Earth 0.313610183411261 0.203028169563623 0.424683962573675 19.6237264126188 19.6232934548759 2460725.255659149 6212.02888338029 5561140.45381249 4079.54749839845 -5.99275745306749 1075.0766787083 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2056-Apr-28 13:56 1_05:19 Earth 0.15952549434131 0.032318329957121 0.299792529968692 14.5165465331711 14.515395901936 2472117.080589292 1759.32018612371 7054103.1008734 1198.58278802682 -10.2490815994629 3060.78193911673 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2058-Sep-23 16:11 4_00:11 Earth 0.49657691718071 0.491420250686688 0.501777231960297 19.2866052566386 19.2863270463612 2472995.174361658 5771.20212287151 347304.305378859 6916.10689229534 41.9767007554384 5562.36442316983 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2061-Feb-14 09:39 1_11:48 Earth 0.203768310171274 0.165434270007217 0.243276596808004 15.9915348580222 15.9907171529957 2473869.902158713 2148.27655834897 2088719.46547904 10371.2523743049 21.2781295365504 944.33555644722 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2061-Aug-17 08:53 8_22:07 Earth 0.469731143336405 0.455467421405435 0.486432735672626 16.5167882346917 16.5164448017766 2474053.869815029 12847.1627352391 1856707.58090234 1203.78437704417 65.3635138738458 34916.5548298781 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2077-Dec-12 02:12 6_17:57 Earth 0.349049588121803 0.333672306300667 0.364512442425648 8.59522259074036 8.59433443211558 2480014.591876311 9717.02518435646 815812.922244397 4462.24442120942 19.5778840858505 1365.31366778919 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
2078-Apr-08 20:16 6_01:51 Earth 0.124161335855031 0.119094971336086 0.148190509327782 7.56854741684686 7.56571149135455 2480132.344230452 8751.10498777064 2660223.03463217 8209.38838587773 73.786819048689 2008.9885563819 T 1 CATAB v2.0f-lin.ifort 2020-Apr-22 03:42:09 2020-Apr-22 03:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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