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305371 (2008 CT4)
Classification: Main-belt Asteroid          SPK-ID: 2305371
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04105331232928174 6.7646e-08  
a 3.077930415367985 3.985e-08 au
q 2.951571176698087 2.1541e-07 au
i 17.32502882872202 7.6136e-06 deg
node 349.9925334351628 1.9643e-05 deg
peri 149.5371971567885 9.0083e-05 deg
M 120.9459099934167 8.5936e-05 deg
tp 2458337.863570157969
(2018-Aug-07.36357016)
0.00046986 TDB
period 1972.361981948093
5.40
3.8304e-05
1.049e-07
d
yr
n .1825222769932068 3.5447e-09 deg/d
Q 3.204289654037883 4.1486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      273  
   data-arc span      6301 days (17.25 yr)  
   first obs. used      2002-01-06  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56295  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:12:24  

Additional Information
 Earth MOID = 1.96981 au 
 Jupiter MOID = 1.78811 au 
 T_jup = 3.158 
[ 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 15.2   n/a MPO437356  
diameter diameter 5.952 km 0.263 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305371 (2008 CT4)          Discovered 2008-Feb-02 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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