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74438 (1999 CT)
Classification: Main-belt Asteroid          SPK-ID: 2074438
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1346375165874333 4.343e-08  
a 3.048814604150803 2.3072e-08 au
q 2.63832977731244 1.2979e-07 au
i 11.91674116219797 5.3039e-06 deg
node 123.1539846508117 2.4794e-05 deg
peri 128.2277639200634 3.2025e-05 deg
M 198.9720704817878 2.1579e-05 deg
tp 2459470.248441245413
(2021-Sep-12.74844125)
0.00011983 TDB
period 1944.441810716668
5.32
2.2072e-05
6.043e-08
d
yr
n .1851431079170807 2.1016e-09 deg/d
Q 3.459299430989166 2.6178e-08 au
  Orbit Determination Parameters
   # obs. used (total)      924  
   data-arc span      7311 days (20.02 yr)  
   first obs. used      1999-02-05  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56033  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:48:18  

Additional Information
 Earth MOID = 1.64258 au 
 Jupiter MOID = 1.72768 au 
 T_jup = 3.191 
[ 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 14.2   n/a MPO337818  
diameter diameter 4.546 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74438 (1999 CT)          Discovered 1999-Feb-05 by Kobayashi, T. at Oizumi
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CT = 2000 KA8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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