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393131 (2013 BL47)
Classification: Main-belt Asteroid          SPK-ID: 2393131
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0830171601365863 6.2109e-08  
a 3.087878300794022 5.2017e-08 au
q 2.831531413414714 2.118e-07 au
i 4.900616924183238 7.353e-06 deg
node 93.06097786080811 7.9371e-05 deg
peri 203.7765841973908 0.00010036 deg
M 311.6682872215454 5.8505e-05 deg
tp 2459266.583764033291
(2021-Feb-21.08376403)
0.00031861 TDB
period 1981.931728574829
5.43
5.0081e-05
1.371e-07
d
yr
n .181640969166415 4.5898e-09 deg/d
Q 3.34422518817333 5.6336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6314 days (17.29 yr)  
   first obs. used      2003-04-01  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:19:43  

Additional Information
 Earth MOID = 1.81645 au 
 Jupiter MOID = 1.8109 au 
 T_jup = 3.215 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457791.5 (2017-Feb-07.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08187945761922423 6.2076e-08  
q 2.836375578935013 2.1183e-07 au
tp 2457285.361136242207
(2015-Sep-19.86113624)
0.00035243 TDB
node 93.06146272178073 7.9386e-05 deg
peri 203.9546456311958 0.00010095 deg
i 4.899597159444589 7.3518e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6314 days (17.29 yr)  
   first obs. used      2003-04-01  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:19:43  

Additional Information
 Jupiter MOID = 1.8109 au 
 T_jup = 3.215 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.853452907411963E-15 -1.284142622971355E-14 -1.968596627768644E-12 -4.379908598290956E-14 -2.333736035635832E-13 3.83898219911488E-16
q -1.284142622971355E-14 4.487348732298045E-14 -4.291626826782771E-12 1.354069289791755E-13 -1.087071974530209E-12 7.85539058378588E-16
tp -1.968596627768644E-12 -4.291626826782771E-12 1.242054320188669E-7 1.787956233010958E-10 2.202833678901663E-8 -1.239512870733606E-11
node -4.379908598290956E-14 1.354069289791755E-13 1.787956233010958E-10 6.3020751561574E-9 -6.24732767412555E-9 -2.27612208965274E-10
peri -2.333736035635832E-13 -1.087071974530209E-12 2.202833678901663E-8 -6.24732767412555E-9 1.019016209591303E-8 2.246437436633337E-10
i 3.83898219911488E-16 7.85539058378588E-16 -1.239512870733606E-11 -2.27612208965274E-10 2.246437436633337E-10 5.404877933741639E-11

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 16.2   n/a MPO472036  

393131 (2013 BL47)          Discovered 2009-Apr-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ 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
1931-Jul-10 10:01 00:06 Jupiter 1.96443003937561 1.96442808960221 1.96443198915794 3.01382979445835 2.86719557517338 2426532.917116989 6.32649319646378 248.966729650582 23.8983833250928 -71.3118628722451 2267854.89014005 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 16:19:44 2020-Nov-12 16:19
1941-Jun-03 15:10 00:06 Jupiter 1.80586091545895 1.80586014912028 1.80586168179731 2.84070377296328 2.67048988973102 2430149.132085097 5.73311654436595 116.407781039964 25.0842504318492 88.7986850178351 1652311.39832518 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 16:19:44 2020-Nov-12 16:19
2001-Aug-22 09:39 00:01 Jupiter 1.82994419097415 1.82994341771331 1.82994496423488 2.78352820072927 2.61195201808559 2452143.902193258 1.09770182753919 66.4258986991972 22.0905298528487 -78.6551262307024 1745017.9235032 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 16:19:44 2020-Nov-12 16:19
2011-Jul-13 03:43 < 00:01 Jupiter 1.90012690307677 1.90012601640557 1.90012778974775 3.35300600596149 3.21731350274292 2455755.654562217 0.499471703104892 75.1192840270708 32.5830866687081 87.3972233662907 1630359.58859732 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 16:19:44 2020-Nov-12 16:19
2061-Nov-06 15:43 00:04 Jupiter 1.93200736309503 1.93200615883521 1.93200856735728 2.91987587510268 2.76565427434958 2474135.155059106 3.50956292475538 148.411503805362 22.5436609537994 -73.8601312637221 2091357.66613773 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 16:19:44 2020-Nov-12 16:19
2071-Oct-01 14:43 00:04 Jupiter 1.82277330759185 1.82277208848216 1.82277452670331 2.94559006529417 2.78336541634919 2477751.113182920 4.34667505764695 150.493981164021 23.4405764505101 -78.8643303639973 1399892.29461768 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 16:19:44 2020-Nov-12 16:19
2131-Dec-22 14:30 00:09 Jupiter 1.82354233154643 1.82354146252487 1.82354320056923 2.79850323546364 2.62728652874216 2499747.103918330 8.9452544313829 135.802674302551 21.3317966631774 -75.4063412239156 1702404.71868662 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 16:19:44 2020-Nov-12 16:19
2141-Nov-13 17:11 00:10 Jupiter 1.93742603072143 1.93742286459291 1.9374291968962 3.55399572399546 3.4287762250732 2503361.215644826 9.49570493962396 521.873296047257 30.3386168661603 -76.7253214279247 1894104.09375261 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 16:19:44 2020-Nov-12 16:19
2192-Mar-10 16:32 00:13 Jupiter 1.90699567711118 1.90699229876971 1.9069990554893 2.856615514471 2.69664983447564 2521741.188646927 13.4051986089706 470.871377499092 22.9349913646516 -72.2761240325421 2024896.18122919 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 16:19:44 2020-Nov-12 16:19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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