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74449 (1999 CR22)
Classification: Main-belt Asteroid          SPK-ID: 2074449
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017889223328191 3.7825e-08  
a 2.962085289267951 1.8727e-08 au
q 2.660577819815469 1.1081e-07 au
i 6.957058564892054 4.6943e-06 deg
node 86.76730410685037 4.9396e-05 deg
peri 40.95083926292012 5.9768e-05 deg
M 69.40945938822803 3.1921e-05 deg
tp 2458641.486378338686
(2019-Jun-06.98637834)		 0.00016476 TDB
period 1862.064694599727
5.10		 1.7659e-05
4.835e-08		 d
yr
n .1933337767715887 1.8335e-09 deg/d
Q 3.263592758720432 2.0633e-08 au
   Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      7749 days (21.22 yr)  
   first obs. used      1999-02-10  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:05:09  

Additional Information
 Earth MOID = 1.6807 au 
 Jupiter MOID = 1.81681 au 
 T_jup = 3.247 
[ 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 14.8   n/a MPO337818  
diameter diameter 6.275 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74449 (1999 CR22)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CR22 = 2000 HM104 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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