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442870 (2013 BL9)
Classification: Main-belt Asteroid          SPK-ID: 2442870
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1985799124100833 1.3056e-07  
a 3.143914863529364 9.6787e-08 au
q 2.519596525304944 4.7344e-07 au
i 15.67845895058187 1.0568e-05 deg
node 308.1550561290502 2.3506e-05 deg
peri 323.6923377534236 3.8097e-05 deg
M 331.9596750877972 1.9935e-05 deg
tp 2459159.093408514486
(2020-Nov-05.59340851)
0.00011195 TDB
period 2036.12573120964
5.57
9.4024e-05
2.574e-07
d
yr
n .1768063702952803 8.1646e-09 deg/d
Q 3.768233201753784 1.1601e-07 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      3537 days (9.68 yr)  
   first obs. used      2010-09-10  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48505  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:41:30  

Additional Information
 Earth MOID = 1.52114 au 
 Jupiter MOID = 1.53308 au 
 T_jup = 3.122 
[ 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 15.9   n/a MPO472464  

442870 (2013 BL9)          Discovered 2010-Sep-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

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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
1905-Apr-29 02:11 00:27 Jupiter 1.90278698255438 1.90277907456472 1.90279490710931 1.05552095743163 0.473104385854569 2416964.590834645 26.8225575046335 37737.8956623505 1680.14055748715 -25.2167341102133 571872.075279046 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 08:41:30 2020-Nov-12 08:41
1979-Aug-12 09:43 00:05 Jupiter 1.96166313639042 1.96165864676386 1.96166762608244 4.51295939098499 4.4162457532272 2444097.904807637 5.19487380547184 1077.15179155524 185.243670419854 -83.3403797896988 1031354.83821267 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 08:41:30 2020-Nov-12 08:41
1990-Apr-18 09:38 00:03 Jupiter 1.54715188245333 1.54715071787428 1.5471530473218 3.97138471023801 3.8310510677209 2447999.901564937 3.33106011011581 2047.33190862119 42.4042015904291 -89.0100302889994 1221318.87757263 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 08:41:30 2020-Nov-12 08:41
2000-Oct-13 17:43 00:03 Jupiter 1.81256000955199 1.81255802001811 1.81256199909607 2.23151759868603 2.01123250830201 2451831.238507735 3.28573226500875 627.155600353738 131.169777721264 70.269154418405 681863.225696922 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 08:41:30 2020-Nov-12 08:41
2085-Jun-10 19:35 00:08 Jupiter 1.57445227588967 1.57444791728046 1.574456634514 4.13131316005888 3.9989736311594 2482752.315927145 7.92537235649396 724.607169321095 192.383684594306 84.1876565250292 657836.205832178 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 08:41:30 2020-Nov-12 08:41
2096-Feb-01 02:22 00:13 Jupiter 1.70865691862217 1.70864933793652 1.70866449948624 3.18753646466373 3.02802582443537 2486639.598644481 12.5628339208951 1046.08716646166 213.186780716135 -64.5913352187475 480958.378371031 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 08:41:30 2020-Nov-12 08:41
2180-Aug-01 23:30 00:19 Jupiter 1.6244235593554 1.6244101326379 1.62443698620301 4.23242901982203 4.10738313544592 2517502.478899521 19.0527278390513 1075.84215219839 315.82730291693 56.3025493380065 483393.374598273 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 08:41:30 2020-Nov-12 08:41
2191-Apr-20 10:35 00:23 Jupiter 1.60707054018605 1.60705815473231 1.6070829386115 3.66772871709118 3.52109557461807 2521415.940678275 22.7857177066875 7404.56007129632 49.8695147062871 -84.6364576551677 1018981.84643552 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 08:41:30 2020-Nov-12 08:41

Alternate Designations
 2013 BL9 = 2010 RQ135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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