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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2243959247232733 4.043e-08  
a 3.162958625447045 2.7959e-08 au
q 2.453203599828402 1.3703e-07 au
i 27.54404692473579 6.2757e-06 deg
node 138.764283900873 1.0074e-05 deg
peri 304.2103386066698 1.8142e-05 deg
M 320.2282617364608 1.2998e-05 deg
tp 2459227.492111761683
(2021-Jan-12.99211176)
7.4338e-05 TDB
period 2054.653977976114
5.63
2.7243e-05
7.459e-08
d
yr
n .1752119840415217 2.3232e-09 deg/d
Q 3.872713651065689 3.4233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      7967 days (21.81 yr)  
   first obs. used      1999-01-22  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53666  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:28  

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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