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202421 (2005 UQ513)
Classification: TransNeptunian Object          SPK-ID: 2202421
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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 2-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 has stopped working because of a recent Java upgrade, here is a possible workaround.
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 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1496159839449641 8.7476e-05  
a 43.2426229072516 0.0052834 AU
q 36.77283533262212 0.0082022 AU
i 25.73429916991332 0.00013121 deg
node 307.8919704136198 0.00069213 deg
peri 221.5066482509096 0.023446 deg
M 223.6546321958382 0.02643 deg
tp 2496537.782677249960
6.4521 JED
period 103864.340915128
n .003466059639218924 6.3523e-07 deg/d
Q 49.71241048188109 0.0060739 AU
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      8474 days (23.20 yr)  
   first obs. used      1990-09-15  
   last obs. used      2013-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      3  
   fit RMS      .41737  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 22:45:15  

Additional Information
 Earth MOID = 35.823 AU 
 T_jup = 5.256 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 3.4 mag .37743 8 autocmod 2.6
rotation period rot_per 7.03 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Ortiz, J.L.; Campo Bagatin, A.; Pravec, P.; et al. (2012) MNRAS 424, 3156-3177.]

202421 (2005 UQ513)          Discovered 2005-Oct-21 by Palomar at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2015-Nov-29 05:13 UT
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