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442526 (2011 WG104)
Classification: Main-belt Asteroid          SPK-ID: 2442526
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03351875765644124 6.4378e-08  
a 3.051385619775222 5.9573e-08 au
q 2.949106964669626 1.9689e-07 au
i 7.367395927500721 7.3542e-06 deg
node 334.5845790492837 5.3792e-05 deg
peri 82.04299097168666 0.00012759 deg
M 217.7967768687444 0.00011873 deg
tp 2459769.543682680127
(2022-Jul-09.04368268)
0.00065148 TDB
period 1946.901903266313
5.33
5.7015e-05
1.561e-07
d
yr
n .1849091622931945 5.4151e-09 deg/d
Q 3.153664274880817 6.157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      4101 days (11.23 yr)  
   first obs. used      2008-02-02  
   last obs. used      2019-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60159  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:41:35  

Additional Information
 Earth MOID = 1.97145 au 
 Jupiter MOID = 1.97006 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457490.5 (2016-Apr-12.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0359128221279295 6.4358e-08  
q 2.938747345781832 1.9675e-07 au
tp 2457828.676248983342
(2017-Mar-16.17624898)
0.00058613 TDB
node 334.6838945741712 5.383e-05 deg
peri 82.64551799702862 0.00012055 deg
i 7.366990494959082 7.3543e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      4101 days (11.23 yr)  
   first obs. used      2008-02-02  
   last obs. used      2019-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60159  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:41:35  

Additional Information
 Jupiter MOID = 1.97006 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.141933291268338E-15 -1.211415464180889E-14 -1.35339272606238E-12 -1.140436103389115E-14 -3.58438774276049E-13 -9.417358460383939E-16
q -1.211415464180889E-14 3.871212344245106E-14 1.559903388366294E-11 3.181509567158961E-14 3.09267456908081E-12 5.750348425247692E-15
tp -1.35339272606238E-12 1.559903388366294E-11 3.435536504709414E-7 -4.550593944166557E-11 6.32679308083695E-8 -6.41188409762222E-12
node -1.140436103389115E-14 3.181509567158961E-14 -4.550593944166557E-11 2.897706032523637E-9 -2.881502424460829E-9 2.67503998761336E-11
peri -3.58438774276049E-13 3.09267456908081E-12 6.32679308083695E-8 -2.881502424460829E-9 1.453212328445944E-8 -2.778824759593426E-11
i -9.417358460383939E-16 5.750348425247692E-15 -6.41188409762222E-12 2.67503998761336E-11 -2.778824759593426E-11 5.40863658364929E-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 16.5   n/a MPO437721  

442526 (2011 WG104)          Discovered 2008-Feb-02 by Spacewatch at Kitt Peak
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
1914-Oct-15 11:12 00:09 Jupiter 1.98315068311675 1.98314992065202 1.98315144558205 4.16712715634604 4.06333972464471 2420420.966706831 8.56126974276957 143.308784494088 34.519416146255 -83.560411755723 2234404.76677896 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 10:41:38 2020-Feb-26 10:41
1963-Jan-17 21:46 00:05 Jupiter 1.97725504538239 1.97725414406512 1.97725594670472 4.17714696394284 4.07330218494713 2438047.406789286 4.49683672298959 253.964043206509 30.7470896912322 83.541174926329 2275954.07934557 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 10:41:38 2020-Feb-26 10:41
2069-Mar-03 09:56 00:05 Jupiter 1.97254004004007 1.97253916082995 1.97254091925086 4.16475819919505 4.06034442414929 2476808.914165906 4.55251524471674 141.797808487111 36.4745103287985 -82.6912859928557 2389878.13331058 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 10:41:38 2020-Feb-26 10:41
2117-Jun-08 04:13 00:09 Jupiter 1.98734367710066 1.98734279692894 1.98734455729205 4.12523805648215 4.02059352285761 2494436.675774497 8.78023194105159 495.746967913441 30.1472036794502 86.3041892543398 2333928.72168511 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 10:41:38 2020-Feb-26 10:41

Alternate Designations
 2011 WG104 = 2013 BC66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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