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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1985798804906143 1.4009e-07  
a 3.143914780646473 1.2206e-07 au
q 2.519596559233021 4.8394e-07 au
i 15.67848512090703 1.7672e-05 deg
node 308.1550702111344 2.3544e-05 deg
peri 323.6922983430408 3.9609e-05 deg
M 331.9597105526248 2.9741e-05 deg
tp 2459159.093201657318
(2020-Nov-05.59320166)
0.00017191 TDB
period 2036.125650692199
5.57
0.00011858
3.247e-07
d
yr
n .1768063772869886 1.0297e-08 deg/d
Q 3.768233002059925 1.463e-07 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      3076 days (8.42 yr)  
   first obs. used      2010-09-10  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:35:27  

Additional Information
 Earth MOID = 1.52114 au 
 Jupiter MOID = 1.53308 au 
 T_jup = 3.122 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457231.5 (2015-Jul-28.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1973041183362699 1.3998e-07  
q 2.525598538101236 4.8353e-07 au
tp 2457120.854540188022
(2015-Apr-08.35454019)
0.00016386 TDB
node 308.1860864826534 2.355e-05 deg
peri 323.5541909319467 3.9823e-05 deg
i 15.67136943335481 1.7664e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      3076 days (8.42 yr)  
   first obs. used      2010-09-10  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:35:27  

Additional Information
 Jupiter MOID = 1.53308 au 
 T_jup = 3.122 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.959543787551503E-14 -6.643529324825347E-14 1.797800575227691E-11 -2.601800222175002E-14 3.432548686567912E-12 -7.616539044668754E-14
q -6.643529324825347E-14 2.33806053941414E-13 -6.115151844279161E-11 9.115864068875883E-14 -1.157249743126342E-11 2.901878332478617E-13
tp 1.797800575227691E-11 -6.115151844279161E-11 2.684930031523685E-8 -3.152511819134354E-11 5.272762784159801E-9 -8.826394945715896E-11
node -2.601800222175002E-14 9.115864068875883E-14 -3.152511819134354E-11 5.545834112449851E-10 -5.3888561088931E-10 -5.129224616167207E-11
peri 3.432548686567912E-12 -1.157249743126342E-11 5.272762784159801E-9 -5.3888561088931E-10 1.585843045108409E-9 3.299323203994589E-11
i -7.616539044668754E-14 2.901878332478617E-13 -8.826394945715896E-11 -5.129224616167207E-11 3.299323203994589E-11 3.120227057195908E-10

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

[ 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
1905-Apr-29 02:20 00:36 Jupiter 1.90278532472826 1.90277458202565 1.90279609751408 1.05550586075977 0.473069883582997 2416964.597444055 36.1615857929425 50235.5421022404 1828.57370838724 -25.8222998631 519127.275919084 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 13:35:29 2019-Jul-14 13:35
1979-Aug-12 09:45 00:07 Jupiter 1.96166530650421 1.96165849011836 1.96167212317975 4.51296689458434 4.4162535293133 2444097.906191377 7.09425716887876 1853.93923602523 246.69698921372 -82.9343224805079 611715.308581706 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 13:35:29 2019-Jul-14 13:35
1990-Apr-18 09:40 00:05 Jupiter 1.54715264681956 1.54715092730365 1.54715436635218 3.97139290471318 3.83105963296493 2447999.902677971 4.5560439191668 2288.4098736587 74.1349245764929 -89.4474223459998 779488.015148284 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 13:35:29 2019-Jul-14 13:35
2000-Oct-13 17:45 00:05 Jupiter 1.81256046066346 1.81255763059861 1.81256329073006 2.23153006533421 2.0112463982077 2451831.239776082 4.5485071799104 759.680950624468 222.847528419375 70.8628755790093 461688.136813142 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 13:35:29 2019-Jul-14 13:35
2085-Jun-10 19:33 00:10 Jupiter 1.57445170948594 1.5744469018457 1.57445651724458 4.13131787037216 3.99897844895624 2482752.314349451 10.3884990203475 1383.46784561947 198.643046777743 85.4697980827447 625344.303535682 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 13:35:29 2019-Jul-14 13:35
2096-Feb-01 02:18 00:17 Jupiter 1.70866030322206 1.70864998154389 1.70867062509245 3.18753178156053 3.02802121892424 2486639.596140402 16.6911169594327 1196.12911977779 384.854261785632 -61.9474973375454 287839.027469555 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 13:35:29 2019-Jul-14 13:35
2180-Aug-01 23:23 00:25 Jupiter 1.62441986507257 1.62440311395593 1.62443661661829 4.2324320901716 4.10738601055957 2517502.474621319 25.1795641917374 1740.66621728695 397.407588861646 65.1569335848376 428101.952925214 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 13:35:29 2019-Jul-14 13:35
2191-Apr-20 10:27 00:30 Jupiter 1.6070755394934 1.60705860275077 1.60709249803537 3.66772249248887 3.52108955644351 2521415.935643213 30.3345243789161 9608.83413571765 72.0198755181373 -84.3798138671315 609311.054113621 T 14 CATAB v2.0e-lin.ifort 2019-Jul-14 13:35:29 2019-Jul-14 13:35

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