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447242 (2005 UK204)
Classification: Main-belt Asteroid          SPK-ID: 2447242
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 .208804883044146 6.9935e-08  
a 2.979870904878637 3.2874e-08 au
q 2.3576593090988 2.2448e-07 au
i 11.20990926650884 9.7957e-06 deg
node 223.2729554124274 4.6996e-05 deg
peri 207.2757833883666 6.4013e-05 deg
M 285.1760689967451 4.2426e-05 deg
tp 2459391.010415525490
(2021-Jun-25.51041553)
0.00022511 TDB
period 1878.860782963423
5.14
3.1091e-05
8.512e-08
d
yr
n .1916054681987624 3.1707e-09 deg/d
Q 3.602082500658475 3.9738e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      5471 days (14.98 yr)  
   first obs. used      2005-10-25  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54461  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:53:09  

Additional Information
 Earth MOID = 1.37751 au 
 Jupiter MOID = 1.76475 au 
 T_jup = 3.198 
[ 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 16.8   n/a MPO397617  

447242 (2005 UK204)          Discovered 2005-Oct-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

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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
1900-Sep-08 06:51 00:06 Jupiter 1.75622853627695 1.75622766516152 1.75622940741684 2.85348878311158 2.67914270725005 2415270.785618885 5.92732231386567 637.360609795486 32.9093199891894 -85.8584585606381 1202994.25248116 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 07:53:09 2020-Nov-12 07:53
1937-Feb-02 04:00 00:05 Jupiter 1.87195391971891 1.87195123737676 1.87195660207904 2.33551287929788 2.13299309609867 2428566.666486938 4.78180822455849 448.909381177091 111.702210599367 72.351975908679 1587469.45891654 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 07:53:09 2020-Nov-12 07:53
1982-May-01 18:39 00:02 Jupiter 1.99802222286131 1.99801969318165 1.99802475254723 3.37590515904657 3.24790312156328 2445091.277013874 2.1969314489126 246.781873422459 47.2702231812919 64.2839066410245 1004618.00035587 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 07:53:09 2020-Nov-12 07:53
2018-Sep-12 01:39 < 00:01 Jupiter 1.80443669470108 1.80443563428638 1.80443775511752 3.10148042863094 2.94624485705539 2458373.569076433 0.76883350357218 240.792720128139 33.253834358444 82.9269863400684 1311925.44000994 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 07:53:09 2020-Nov-12 07:53
2055-Jan-19 10:24 00:02 Jupiter 1.77188905950897 1.77188807639797 1.7718900426251 2.68572114774717 2.50140577921526 2471651.933166355 1.81050665873394 248.326103986239 41.6738789378132 -84.9495615399303 1900714.59079142 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 07:53:09 2020-Nov-12 07:53
2091-Jun-26 07:39 00:04 Jupiter 1.88828310443321 1.8882810672366 1.88828514165259 2.05099270883572 1.81918553268899 2484958.818837767 4.09672725501291 520.18972073564 98.0552251398409 76.3972187783446 1238547.17270678 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 07:53:09 2020-Nov-12 07:53
2136-Sep-09 21:32 00:06 Jupiter 1.97503093066838 1.97502788535586 1.97503397603244 3.38504295167988 3.25588465672823 2501470.397456449 5.73829394436074 578.782918874356 48.2577829058443 76.384513170683 1199283.59776404 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 07:53:09 2020-Nov-12 07:53
2173-Jan-22 01:58 00:07 Jupiter 1.79719837270473 1.79719679276744 1.79719995274346 3.00182854604448 2.84048787486961 2514753.581749067 7.30649818737935 825.9852864546 29.2152604854265 86.6972357104732 1237048.05395996 T 9 CATAB v2.0f-lin.ifort 2020-Nov-12 07:53:09 2020-Nov-12 07:53

Alternate Designations
 2005 UK204 = 2010 UR39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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