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(2015 HA177)
Classification: Apollo [NEO]          SPK-ID: 3719076
[ 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2387622050777928 0.00052358  
a 1.128413060241884 0.00049689 au
q .8589906697399519 0.00021257 au
i 2.318504108228908 0.0054057 deg
node 215.6551499338481 0.0025223 deg
peri 80.41065696116181 0.017272 deg
M 200.9463587085157 1.054 deg
tp 2459393.937957664796
(2021-Jun-28.43795766)		 1.4096 TDB
period 437.8250267889662
1.20		 0.28919
0.0007918		 d
yr
n .8222462809864036 0.0005431 deg/d
Q 1.397835450743817 0.00061552 au
   Orbit Determination Parameters
   # obs. used (total)      15  
   data-arc span      6 days  
   first obs. used      2015-04-23  
   last obs. used      2015-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .53666  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:34:00  

Additional Information
 Earth MOID = .00259265 au 
 Jupiter MOID = 3.76711 au 
 T_jup = 5.515 
[ 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 27.7   n/a MPO337166  

[ 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
1998-Apr-15 19:44 6_15:10 Earth 0.249454828990111 0.0635241018763752 0.435546379809175 14.6417316403346 14.6410021176212 2450919.321934311 9550.07045854448 9280999.7083503 8.42810705201902 1.42033703107807 100895.296504827 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2010-Oct-14 18:17 1_23:24 Earth 0.25427815128825 0.196559249813971 0.312085009587231 14.806446043329 14.8057383210579 2455484.262112453 2843.53293280261 2890040.31825671 28.7471557930464 -4.59209910987729 95062.8742171126 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2015-Apr-29 21:33 00:02 Moon 0.00585821410753129 0.00583361373431756 0.00588281779556437 8.11297598598813 8.11228639464957 2457142.397609248 2.38732325785341 1246.33033468734 2.83551167150959 10.222372475599 49480.2760444919 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2015-Apr-30 05:59 < 00:01 Earth 0.00447492295344231 0.00444855358819361 0.00450128587451196 7.48571950103184 7.40575095387988 2457142.749100284 0.123330128986158 1286.90891951716 3.07605343708868 -0.295872272204383 302.470311577792 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2015-Dec-19 10:52 1_05:11 Earth 0.381539783430674 0.37893165076084 0.384148008964905 7.68796510949344 7.68705668929226 2457375.952646813 1750.6270686092 130397.655661385 87.3674398769167 -4.33218488442002 30919.5142601181 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2021-Apr-26 13:05 4_14:59 Earth 0.0477575096995143 0.00213841663298478 0.12180878714184 8.70871750854878 8.70230871457688 2459331.044930953 6658.76707266279 3693819.38277989 3.4138020954883 -2.61936830136325 71575.5525364586 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2027-Apr-21 01:52 1_12:41 Earth 0.156364368681832 0.120957268633895 0.191770151506361 11.8977542237007 11.8963219180356 2461516.578097094 2200.51394410362 1765431.00713831 6.80601817695457 0.262995125883842 12422.7827366418 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2028-Jan-03 05:52 7_14:06 Earth 0.405617795685005 0.402742646646729 0.408495531678842 8.13784886603787 8.13704161748148 2461773.744443639 10925.5366144338 152261.460735403 76.702274003967 -19.5836069549107 200206.772772126 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2028-Oct-28 11:57 19:57 Earth 0.475543883171001 0.45632313450379 0.494765846706069 21.4821261888097 21.4818653650624 2462072.997738581 1196.85388614863 959240.424897228 18.2247216351044 -2.28869495792798 136918.774179623 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2033-Apr-14 16:47 06:07 Earth 0.279787642047481 0.27153742774463 0.288038218833449 15.5453993145862 15.5447866955273 2463702.199176392 367.36208875282 411720.255955988 10.6822124295808 2.28179730931568 145841.031401474 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2034-Jan-13 10:03 6_10:05 Earth 0.413870644577188 0.413361696215921 0.414382366092598 8.26992600998073 8.26914749575713 2463975.918575405 9244.51277229404 59177.4411966325 167.814921370281 -64.5356583227989 208246.246853792 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2034-Oct-23 15:44 06:24 Earth 0.353574112065574 0.329798377111389 0.377353271161584 17.8092052297189 17.8087820814991 2464259.155313460 383.882919186638 1186954.02684767 19.7523806257732 -2.67629911470469 111332.300224426 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2039-Apr-09 17:49 1_09:14 Earth 0.401695652791675 0.350816418408961 0.452585693395887 19.1739847481304 19.1736388033637 2465888.242337658 1993.49908618325 2539537.25586673 11.0139011214123 2.3586559602953 214172.396241248 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2040-Oct-17 13:45 1_21:39 Earth 0.22966366287466 0.162225617466451 0.297196011567173 14.095584791557 14.0947616971483 2466445.072799741 2739.3680981708 3373207.37756653 23.3519090448385 -3.81851785517248 88229.5450733322 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2046-Oct-12 06:14 4_10:23 Earth 0.109933062406192 0.0158322403274317 0.215727628606587 10.5207805827444 10.5184765766466 2468630.759507779 6383.41780945378 5302805.69815761 30.8390833138884 -8.20274893636035 73230.0942084619 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2052-Oct-05 23:06 7_15:42 Earth 0.0202493592032473 0.0163525641961774 0.126343994864494 7.67235738126887 7.65518784910505 2470816.462208454 11022.4147509536 5653071.00728041 41.4437452333342 -53.9234839156831 69848.8048416958 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
2064-Oct-13 02:03 4_16:57 Earth 0.133504460077291 0.0411427650206795 0.22769353008452 11.226872717269 11.2250948793254 2475206.585134270 6776.76409960821 4716244.41045227 29.3032129035692 -6.84976502343926 76540.8662162653 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 05:24:03 2018-Dec-11 16:38
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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