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477885 (2011 JT9)
Classification: Amor [NEO]          SPK-ID: 2477885
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 80 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5197300772559528 5.9184e-08  
a 2.692119613366458 3.5042e-08 au
q 1.292944078729243 1.5979e-07 au
i 19.06727926650638 6.4433e-06 deg
node 118.9665331138564 1.4187e-05 deg
peri 185.2534605537845 1.9205e-05 deg
M 343.2585773266562 5.7408e-06 deg
tp 2459075.529113562257
(2020-Aug-14.02911356)
2.5113e-05 TDB
period 1613.392207426885
4.42
3.1501e-05
8.625e-08
d
yr
n .223132353275801 4.3566e-09 deg/d
Q 4.091295148003672 5.3254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      4688 days (12.84 yr)  
   first obs. used      2007-11-11  
   last obs. used      2020-09-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-15 06:59:07  

Additional Information
 Earth MOID = .278468 au 
 Jupiter MOID = 1.19054 au 
 T_jup = 3.094 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO397694  

477885 (2011 JT9)          Discovered 2011-Apr-06 by CSS at Catalina
Reference: Last Updated: 2016-11-20

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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
1931-Jul-19 07:43 < 00:01 Earth 0.481512608986684 0.481496880222082 0.481528341955253 10.9236663385654 10.923159760552 2426541.821871502 0.680036857922929 2378.43999802163 30.9896821550738 70.7569017077019 1937621.29228448 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
1940-Jul-23 15:13 < 00:01 Earth 0.320659639214527 0.320658886269938 0.320660392337927 10.2644881755742 10.2636786177303 2429834.134114841 0.266643181253122 517.702774879055 25.6100633903941 86.955763069461 1744448.81665167 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
1942-Oct-16 06:05 00:01 Jupiter 1.87867439090433 1.87866948536697 1.87867929644297 6.24582097646941 6.17321278362428 2430648.753157841 1.27834652815571 257.546501631555 50.7125839504693 22.4615264650195 1267934.80894371 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
1978-May-29 13:14 < 00:01 Jupiter 1.82188900655713 1.82188556796208 1.82189244515291 6.06507042132749 5.98792537747749 2443658.051434161 0.943463092347537 182.186185350102 50.5265460205562 24.4487163110386 1422464.57173205 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
1989-Jul-25 15:31 < 00:01 Earth 0.476624694413129 0.476615064923467 0.476634323941019 12.017814346745 12.0173491692116 2447733.146279085 0.206251508521401 525.471796200305 33.7596032077869 24.0172446222527 813019.372819472 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2013-Dec-17 18:50 < 00:01 Jupiter 1.90346891337674 1.9034669871918 1.90347083956201 6.27431500899174 6.20298726867308 2456644.284411199 0.393127259944728 105.072432011922 49.4746081464442 29.1263527744729 2533882.35674857 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2020-Jul-22 17:34 < 00:01 Earth 0.411446261570382 0.411445475593605 0.411447047547417 11.3003984881164 11.2998254064829 2459053.231634509 0.0662320597358641 60.1601257398932 36.5480392651743 72.7690217866909 1574425.87877453 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2060-Jul-23 23:36 < 00:01 Earth 0.371399433629949 0.371391506143547 0.37140736120143 11.4231607880918 11.4225327344057 2473664.483564257 0.0889747309169888 485.119919137798 30.9755349896326 35.5105358064905 942467.018803313 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2062-Aug-12 02:27 00:01 Jupiter 1.96517871878753 1.96517392180233 1.9651835157752 5.90774296288615 5.83432908630442 2474413.602242306 1.11251429828786 265.452321401442 60.3127608678455 28.4699374477172 1401593.20358178 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2091-Jul-23 14:47 < 00:01 Earth 0.39270993475165 0.392700124032889 0.39271974633402 11.0508557076785 11.0502417242847 2484986.115727591 0.154344276511993 1043.92000472935 44.4967883167106 62.1518292303167 1062980.61491497 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2098-Feb-13 11:54 00:01 Jupiter 1.80758969670048 1.80758518179118 1.807594211614 5.60049661197022 5.51619232883569 2487382.996036298 1.17444972849921 268.57418225337 65.2998674910728 36.1193657566386 1546943.69805366 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2131-Jul-24 05:02 < 00:01 Earth 0.387288604080136 0.387281967851651 0.387295240597521 10.7616901470374 10.761050839161 2499595.709791154 0.128565070138961 629.975284110867 58.9504053750448 58.7234042265185 785988.522245865 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2133-Sep-12 14:51 < 00:01 Jupiter 1.78143159288265 1.78142939313738 1.78143379262903 5.52884976984728 5.44217179981843 2500377.118714377 0.882474590156216 145.774892722073 71.0937484902907 51.1698005607781 1626553.51035295 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2140-Jul-26 17:23 < 00:01 Earth 0.358504143245876 0.358499255703295 0.358509030875025 10.6679497210292 10.6672530120637 2502886.224408636 0.125028454202437 371.801776611659 35.3562902188529 49.3437206546619 1070208.80690742 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2169-May-07 23:55 00:01 Jupiter 1.87776449470472 1.87776232892786 1.8777666604881 5.73474555922222 5.65554118439982 2513398.496476351 1.29690330563756 210.739392586748 25.1962727171642 60.478132201284 2929053.39221622 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2189-Jul-22 08:47 < 00:01 Earth 0.410197221470206 0.410186347182892 0.410208096009693 10.3108348560217 10.3102048581541 2520778.865745563 0.442326078797238 746.131708109412 77.9652806742992 43.6836655890075 510585.072941232 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
2198-Jul-27 14:02 < 00:01 Earth 0.437682468197014 0.437668178427021 0.437696758141288 11.6496586434059 11.6491360670611 2524071.084615075 0.23356109271823 835.391862836588 34.3796100828939 31.4943592456741 939485.469571531 T 80 CATAB v2.0f-lin.ifort 2020-Sep-15 06:59:23 2020-Sep-15 06:59
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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