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74473 (1999 CY55)
Classification: Main-belt Asteroid          SPK-ID: 2074473
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07291701753643187 5.9456e-08  
a 2.857040606911601 1.9737e-08 au
q 2.648713726875129 1.7592e-07 au
i 15.37370523579788 5.6878e-06 deg
node 16.049013121172 1.923e-05 deg
peri 160.6470580432047 4.2575e-05 deg
M 48.09209701291716 3.6131e-05 deg
tp 2458364.862579372084
(2018-Sep-03.36257937)
0.00017719 TDB
period 1763.896288474698
4.83
1.8278e-05
5.004e-08
d
yr
n .2040936320078685 2.1149e-09 deg/d
Q 3.065367486948071 2.1176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      931  
   data-arc span      7390 days (20.23 yr)  
   first obs. used      1999-02-10  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58559  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:34  

Additional Information
 Earth MOID = 1.65502 au 
 Jupiter MOID = 1.89684 au 
 T_jup = 3.246 
[ 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 14.1   n/a MPO296660  
diameter diameter 4.979 km 0.231 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74473 (1999 CY55)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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