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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695861196276352 3.6657e-08  
a 2.398688272034916 8.4582e-09 au
q 1.991904035784197 8.8719e-08 au
i 1.927922700018476 4.1485e-06 deg
node 141.1136929555823 0.00012589 deg
peri 275.1543311357148 0.00012665 deg
M 324.5186444194025 1.4319e-05 deg
tp 2459134.238623087014
(2020-Oct-11.73862309)
5.4272e-05 TDB
period 1356.935312179922
3.72
7.1772e-06
1.965e-08
d
yr
n .2653037302284207 1.4033e-09 deg/d
Q 2.805472508285634 9.8926e-09 au
  Orbit Determination Parameters
   # obs. used (total)      954  
   data-arc span      10093 days (27.63 yr)  
   first obs. used      1990-10-19  
   last obs. used      2018-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56221  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 01:30:53  

Additional Information
 Earth MOID = 1.00484 au 
 Jupiter MOID = 2.5343 au 
 T_jup = 3.507 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456415.5 (2013-May-03.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705820532476387 3.703e-08  
q 1.989928894923867 8.9766e-08 au
tp 2456417.715099072271
(2013-May-05.21509907)
4.8892e-05 TDB
node 141.2282447949255 0.0001262 deg
peri 274.6759590889154 0.00012695 deg
i 1.925844006428329 4.1453e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      954  
   data-arc span      10093 days (27.63 yr)  
   first obs. used      1990-10-19  
   last obs. used      2018-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56221  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 01:30:53  

Additional Information
 Jupiter MOID = 2.5343 au 
 T_jup = 3.507 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.371212096294508E-15 -3.313924728336499E-15 -7.167789818653629E-13 6.64136500045938E-15 -2.270751422396591E-13 -6.238456939529468E-16
q -3.313924728336499E-15 8.057850581836929E-15 1.785713538320293E-12 -1.563662072377116E-14 5.612949038506665E-13 1.571210149535283E-15
tp -7.167789818653629E-13 1.785713538320293E-12 2.39041836655563E-9 -6.00091407341927E-12 6.872185017780281E-10 7.498812205938347E-13
node 6.64136500045938E-15 -1.563662072377116E-14 -6.00091407341927E-12 1.592758025934686E-8 -1.591993389656023E-8 1.642996009778208E-10
peri -2.270751422396591E-13 5.612949038506665E-13 6.872185017780281E-10 -1.591993389656023E-8 1.611513402984249E-8 -1.640008581915305E-10
i -6.238456939529468E-16 1.571210149535283E-15 7.498812205938347E-13 1.642996009778208E-10 -1.640008581915305E-10 1.718336586675564E-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

[ 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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