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74464 (1999 CA38)
Classification: Main-belt Asteroid          SPK-ID: 2074464
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2146779821010036 4.3727e-08  
a 3.073861243225857 2.0415e-08 au
q 2.413970914271648 1.4175e-07 au
i 2.793842324381461 4.4782e-06 deg
node 137.524667842342 9.617e-05 deg
peri 355.7562880303253 9.692e-05 deg
M 351.1026275442166 1.1728e-05 deg
tp 2459049.150139057303
(2020-Jul-18.65013906)
6.4348e-05 TDB
period 1968.451938779354
5.39
1.961e-05
5.369e-08
d
yr
n .1828848309211134 1.8219e-09 deg/d
Q 3.733751572180067 2.4797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      11744 days (32.15 yr)  
   first obs. used      1988-02-15  
   last obs. used      2020-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:43:34  

Additional Information
 Earth MOID = 1.42832 au 
 Jupiter MOID = 1.31827 au 
 T_jup = 3.192 
[ 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 15.0   n/a MPO417340  
diameter diameter 5.914 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.62 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.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.055   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74464 (1999 CA38)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CA38 = 1988 CS7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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