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(2015 HL171)
Classification: Apollo [NEO]          SPK-ID: 3718432
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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Orbit Diagram
[ switch to new HTML5 viewer ]

Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2457141.5 (2015-Apr-29.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2564032079502649 0.00066057  
a 1.290890410002813 0.0011654 au
q .9599019677658589 1.3873e-05 au
i 27.22873764841156 0.034196 deg
node 39.96169850521409 0.0012307 deg
peri 226.3056341524818 0.046949 deg
M 330.4461082887074 0.074675 deg
tp 2457185.478930670589
(2015-Jun-11.97893067)
0.051569 TDB
period 535.7133739297848
1.47
0.72543
0.001986
d
yr
n .6720011437444247 0.00090999 deg/d
Q 1.621878852239767 0.0014642 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      5 days  
   first obs. used      2015-04-28  
   last obs. used      2015-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .32351  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-11 07:34:36  

Additional Information
 Earth MOID = .0161481 au 
 Jupiter MOID = 3.4766 au 
 T_jup = 4.887 
[ 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 24.2   n/a MPO346332  

[ 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-Sep-30 07:09 5_06:53 Earth 0.419231205043583 0.401067437458779 0.50769092090693 15.4307285568099 15.4303166697767 2417118.798152960 7613.4381422052 9436294.26486534 514.505681770795 73.0770513709971 81713.5282781068 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1908-Apr-26 04:04 8_22:08 Earth 0.0941248679384299 0.0185638003951695 0.289826165719427 16.7752757058396 16.7735881422158 2418057.669145578 12847.8134454683 9821381.85720826 147.459238774566 11.3819718285722 17573.729109384 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1908-Oct-14 03:04 7_07:53 Earth 0.406425242124136 0.39968679635412 0.475826581312464 14.2286311527133 14.2281703918385 2418228.627504750 10552.9949151103 9200581.02835433 232.99158048149 -79.5555785873436 142174.544409555 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1911-Apr-08 16:38 7_17:59 Earth 0.495677076524041 0.319453524397942 0.671938891900233 24.6998448591594 24.6996272279327 2419135.193240891 11159.3132553107 8791192.8735337 309.778716231338 1.34330349485483 5162.59569030233 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1911-Oct-14 07:46 1_19:09 Mars 0.0963866462211114 0.0265075754818268 0.240957693909563 11.8528643815447 11.8526137875881 2419323.823939872 2588.76357831108 7321615.29984035 204.595936224845 15.9658154533543 18962.2915612333 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1927-May-20 15:31 6_06:16 Earth 0.368123278448842 0.334569853244765 0.511101848925415 15.5227950189027 15.5223287293598 2425021.146820195 9015.61591346125 11610723.0679616 421.9263788498 -65.3503998521634 81990.4057370875 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1927-Sep-29 09:17 2_00:42 Earth 0.438389892942174 0.411691718113031 0.48280754168873 16.0257500349289 16.0253707735686 2425152.886826869 2922.20623037584 4759804.04229338 576.656267520441 67.6641145390119 76762.900578847 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1930-Apr-29 08:41 3_18:04 Earth 0.0392530406291123 0.0156346484601381 0.120171977782554 16.0376477540163 16.0334146815689 2426095.861780793 5403.70891986705 4146260.52028732 80.1701331527444 23.4852283878111 26527.0913859115 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1930-Oct-12 18:12 2_15:30 Earth 0.396314295549035 0.391296015533205 0.414562623144089 14.2405501858525 14.2400780651452 2426262.258449355 3809.87863038936 3693692.45187454 295.902607374645 -80.8753125089928 119548.170729295 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1933-Apr-10 00:37 1_07:53 Earth 0.457035106762086 0.423830098804135 0.490240520842407 23.8082986795298 23.8080538089178 2427172.525920299 1912.61431187163 1655948.98866447 287.240884449492 0.777390420306777 2979.7552269703 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
1949-Sep-30 19:13 6_21:27 Earth 0.416461774846425 0.399558027852481 0.533012635992387 15.4695335740824 15.4691199881129 2433190.300544756 9926.97700396122 11736458.5032667 540.598713399331 73.6251530673148 79262.5658359725 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
2011-Jun-20 18:00 1_11:45 Mars 0.0962147082947316 0.0306110437812542 0.179824775270256 11.882647205138 11.8823967925871 2455733.250040563 2144.80098106601 4283758.48087865 286.861457311369 18.2425572125251 15397.4449217601 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
2012-May-24 13:26 5_08:33 Earth 0.43632855598484 0.403803187615 0.539244402143015 16.2705595890277 16.2701842694325 2456072.059926912 7712.92406890408 9579218.17271818 911.55441430825 -67.741146030942 51755.2601882057 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
2012-Sep-28 02:48 21:47 Earth 0.461303038233857 0.43607752118096 0.496066742191382 16.8514014991972 16.8510587358048 2456198.616706992 1306.59137906842 3637995.69904965 645.038465716598 65.4572889021055 74958.0117679916 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
2015-May-02 05:56 < 00:01 Earth 0.0227339515443075 0.0226381869355095 0.022829715364696 15.4847284296193 15.4771576602926 2457144.747364213 0.108462968495267 4770.70306063747 27.5213881673336 0.125701366891794 530.264393989508 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
2015-Oct-11 09:24 06:27 Earth 0.389759251279292 0.386132966030953 0.393404578475197 14.2758837635549 14.2754048907158 2457306.891329673 387.439602076482 226554.292279657 522.514900212842 36.8445849035378 62352.1360089429 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
2018-Apr-13 22:43 3_06:03 Earth 0.381103345422865 0.308455991408866 0.453807514948887 22.1400926750044 22.1397768887236 2458222.446312173 4683.20370825508 3631467.56469441 268.411646810587 3.60576311663326 12276.2938360604 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
2018-Oct-26 08:10 3_05:19 Earth 0.481636182886968 0.465921835806849 0.50549628783323 14.4264967974038 14.4261133214473 2458417.840539851 4639.44614311702 3281891.75942077 95.8319266369755 -72.3504500309127 297359.332083049 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
2128-Oct-20 13:03 5_12:55 Earth 0.425712467784353 0.332509198365731 0.561714528642625 14.263145135535 14.2627063145715 2498589.043457548 7975.17265214253 8894084.35430598 597.693104482045 -47.558946569956 64965.7769762769 T 7 CATAB v2.0f-lin.ifort 2020-Sep-11 07:34:55 2020-Sep-11 07:35
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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