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59238 (1999 CN2)
Classification: Main-belt Asteroid          SPK-ID: 2059238
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695861682369155 3.6208e-08  
a 2.398688263354618 7.9395e-09 au
q 1.991903911977447 8.7435e-08 au
i 1.927921033420967 4.0174e-06 deg
node 141.1135885869761 0.0001248 deg
peri 275.1544255517687 0.0001255 deg
M 324.5186595659054 1.3336e-05 deg
tp 2459134.238565269881
5.05e-05 TDB
period 1356.93530481427
n .2653037316685301 1.3172e-09 deg/d
Q 2.805472614731789 9.2859e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1008  
   data-arc span      10930 days (29.92 yr)  
   first obs. used      1990-10-19  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55944  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:20:50  

Additional Information
 Earth MOID = 1.00484 au 
 Jupiter MOID = 2.5343 au 
 T_jup = 3.507 
[ 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 15.5   n/a MPO250748  
diameter diameter 1.962 km 0.696 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 2.64 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.220   0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

59238 (1999 CN2)          Discovered 1999-Feb-05 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CN2 = 1999 DJ9 = 2001 QQ63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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