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24541 Hangzou (2001 DO16)
Classification: Main-belt Asteroid          SPK-ID: 2024541
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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1751617296986778 7.3948e-08  
a 2.239710310826628 1.7301e-08 au
q 1.847398778758272 1.674e-07 au
i 5.805805926129135 7.3553e-06 deg
node 87.15966612366527 6.404e-05 deg
peri 287.4832844072636 6.7702e-05 deg
M 346.1289923642817 2.6876e-05 deg
tp 2457647.672806062884
9.1771e-05 JED
period 1224.295352480981
n .2940466932839986 3.4071e-09 deg/d
Q 2.632021842894984 2.0332e-08 au
  Orbit Determination Parameters
   # obs. used (total)      649  
   data-arc span      7841 days (21.47 yr)  
   first obs. used      1993-12-14  
   last obs. used      2015-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56276  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:35:11  

Additional Information
 Earth MOID = .857414 au 
 Jupiter MOID = 2.83827 au 
 T_jup = 3.608 
[ 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 15.4 mag n/a MPO337466  

24541 Hangzou           Discovered 2001 Feb. 16 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Hang Richard Zou (b. 1990) was awarded second place in the 2008 Intel International Science and Engineering Fair for his medicine and health sciences project. He attends the Albuquerque Academy, Albuquerque, New Mexico, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080917/MPCPages.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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