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101609 (1999 CD7)
Classification: Main-belt Asteroid          SPK-ID: 2101609
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2243959246544398 4.0469e-08  
a 3.162958627909258 2.8659e-08 au
q 2.453203601955822 1.3706e-07 au
i 27.54404545223335 6.5631e-06 deg
node 138.7642829554452 1.0148e-05 deg
peri 304.210340797446 1.8459e-05 deg
M 320.2282599785171 1.3667e-05 deg
tp 2459227.492122059975
(2021-Jan-12.99212206)
7.8358e-05 TDB
period 2054.65398037529
5.63
2.7925e-05
7.645e-08
d
yr
n .1752119838369304 2.3813e-09 deg/d
Q 3.872713653862694 3.509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      482  
   data-arc span      7947 days (21.76 yr)  
   first obs. used      1999-01-22  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5393  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:59:33  

Additional Information
 Earth MOID = 1.55683 au 
 Jupiter MOID = 1.5701 au 
 T_jup = 2.992 
[ 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 14.6   n/a MPO417512  
diameter diameter 6.903 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101609 (1999 CD7)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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