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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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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
(2020-Oct-11.73856527)
5.05e-05 TDB
period 1356.93530481427
3.72
6.7371e-06
1.845e-08
d
yr
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456549.5 (2013-Sep-14.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1707600128352834 3.6543e-08  
q 1.989783838626453 8.8472e-08 au
tp 2456417.593884666559
(2013-May-05.09388467)
4.6438e-05 TDB
node 141.2171834138698 0.00012507 deg
peri 274.638069350403 0.00012576 deg
i 1.926071958746597 4.0147e-06 deg
  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
 Jupiter MOID = 2.5343 au 
 T_jup = 3.507 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.335362633803136E-15 -3.224026448672963E-15 -6.450275025251394E-13 6.255780887005966E-15 -2.07856240376475E-13 -5.771772763570403E-16
q -3.224026448672963E-15 7.827244959996861E-15 1.585367809088675E-12 -1.505812641321336E-14 5.084127461339592E-13 1.435119713959698E-15
tp -6.450275025251394E-13 1.585367809088675E-12 2.156479015900323E-9 -5.614303696785466E-12 6.268325461933481E-10 5.985946844330795E-13
node 6.255780887005966E-15 -1.505812641321336E-14 -5.614303696785466E-12 1.564234824098205E-8 -1.563475861572763E-8 1.561636451352115E-10
peri -2.07856240376475E-13 5.084127461339592E-13 6.268325461933481E-10 -1.563475861572763E-8 1.581448215076471E-8 -1.559073175007688E-10
i -5.771772763570403E-16 1.435119713959698E-15 5.985946844330795E-13 1.561636451352115E-10 -1.559073175007688E-10 1.611820725663444E-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 15.5   n/a MPO250748  
diameter diameter 1.962 km 0.696 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
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] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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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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