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(2015 HJ)
Classification: Amor [NEO]          SPK-ID: 3715996
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1661216907171543 0.00023865  
a 1.219753139410539 0.00037676 au
q 1.017125685634104 2.3124e-05 au
i 13.28983791930869 0.013667 deg
node 204.9895889196208 0.00079712 deg
peri 338.1794317985882 0.010638 deg
M 305.8568868066756 0.67192 deg
tp 2459074.502615047431
(2020-Aug-13.00261505)
0.95266 TDB
period 492.0467229497941
1.35
0.22798
0.0006242
d
yr
n .7316378368335004 0.00033898 deg/d
Q 1.422380593186975 0.00043935 au
  Orbit Determination Parameters
   # obs. used (total)      35  
   data-arc span      7 days  
   first obs. used      2015-04-16  
   last obs. used      2015-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .61027  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:34:23  

Additional Information
 Earth MOID = .0238673 au 
 Jupiter MOID = 3.54114 au 
 T_jup = 5.195 
[ 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 27.0   n/a MPO349338  

[ 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-Apr-29 11:56 6_04:27 Earth 0.237421034898222 0.0825931721047435 0.395434910343401 11.0758302045827 11.0748169076211 2434496.997007605 8907.25343118973 7920124.70862698 41.5662848760338 -7.53315158308316 129238.338266761 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
1957-May-14 21:44 2_01:33 Earth 0.489286852012191 0.388492638798107 0.59046645307845 17.3995854102715 17.3992724322673 2435973.405344118 2973.25012361599 5082160.79644582 16.742737033506 -7.58760084816051 1077854.43768693 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
1964-Oct-07 02:00 14:27 Earth 0.423811912678773 0.421038489097054 0.426676005095828 9.13645730643817 9.13576916498036 2438675.583672486 867.150978224393 339601.531437465 1270.59761310158 65.5487902057193 40412.0228816942 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
1976-Mar-14 23:55 2_23:03 Earth 0.392613436266623 0.246645484864108 0.549660325355593 13.134238133829 13.1337214190834 2442852.496634064 4263.17757404673 8244489.91400512 191.187238393097 21.6809146180783 101902.899116561 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
1988-May-06 19:35 5_19:20 Earth 0.357391593370356 0.149819713689961 0.568889304330502 13.9414444631701 13.9409096912681 2447288.315831788 8359.74173252939 10614742.6929297 27.5039794391879 -8.22514424252588 412961.80402001 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
1994-Jun-24 21:43 1_19:51 Mars 0.0633383001682938 0.0239087497027293 0.192457576844562 8.28142486550895 8.28087904603184 2449528.404974775 2630.92487593333 6598046.5596177 161.236269974047 -22.1835336356114 20836.4486005067 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
2003-Nov-15 17:20 4_04:24 Mars 0.0787825113730605 0.0433987731106564 0.158147028098592 7.15568801832996 7.15518016257263 2452959.222008400 6024.07872509376 4304832.98062771 469.405718548392 -33.4336443908132 13823.5949205962 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
2011-Mar-26 22:12 1_06:25 Earth 0.255213724290764 0.21933131979362 0.292494634306484 9.88547753339376 9.88442136326847 2455647.424863287 1825.43435148366 2053400.5078176 262.264564297105 27.0375466542703 58258.6003804144 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
2015-Apr-14 14:22 < 00:01 Earth 0.0239894368170418 0.023910477821908 0.0240683937468612 7.43046637258511 7.41550354320319 2457127.098291947 0.170538189164428 3921.60627315399 50.4137237244454 0.584695190536521 573.3731230407 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
2019-May-01 03:00 1_08:34 Earth 0.253401699129883 0.2169660506518 0.289942095801471 11.394155667613 11.3932328024044 2458604.625162357 1953.58320812643 1837561.49742457 33.5911012190551 -7.98565160947589 201489.217436785 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
2042-Mar-19 10:44 5_00:41 Earth 0.352447372809365 0.158469129134396 0.585667923351582 12.1542140721101 12.153592055029 2466962.947565241 7241.40984394043 12198345.2226377 210.891625845306 22.8192939587191 86251.4701313436 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
2054-May-09 10:30 4_05:39 Earth 0.390435210300552 0.22206115447407 0.560700315467315 14.7500661207758 14.7496034455723 2471396.937707812 6099.29368107326 8551445.46736412 19.8380892262519 -8.22943129169148 713209.729009714 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
2065-Sep-28 02:47 3_00:19 Earth 0.431696220570503 0.429512376373831 0.435064014382186 8.98588677443096 8.98519988036017 2475556.615997522 4338.49278101714 1136260.87195336 663.321181841877 82.9933020576365 77701.2565362114 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
2077-Mar-26 02:19 4_17:15 Earth 0.264439863155341 0.138372353808041 0.418324221650249 10.1103226658805 10.1093260178263 2479753.596345225 6794.61425409266 8215448.56666133 256.70264955042 26.5911995883543 60925.4930133656 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
2132-May-16 10:31 2_20:49 Earth 0.490944540533762 0.35215857000863 0.630747580912501 17.3530103501962 17.3526975917767 2499892.938105512 4128.9451546179 7034909.45454605 11.6180858449745 -8.74867101772986 1364903.21872596 T 7 CATAB v2.0e-lin.ifort 2017-Nov-30 05:02:39 2018-Dec-11 16:37
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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