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79965 (1999 CD121)
Classification: Main-belt Asteroid          SPK-ID: 2079965
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1338691547087741 3.4942e-08  
a 2.615498104410032 1.2437e-08 au
q 2.26536358403026 9.0132e-08 au
i 13.62807883705209 4.0299e-06 deg
node 44.95558597499453 1.9601e-05 deg
peri 13.98258237358373 2.8248e-05 deg
M 69.72000142449315 1.9868e-05 deg
tp 2458701.283920803105
(2019-Aug-05.78392080)
8.4599e-05 TDB
period 1545.005540878263
4.23
1.102e-05
3.017e-08
d
yr
n .2330088730913915 1.662e-09 deg/d
Q 2.965632624789804 1.4102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      989  
   data-arc span      7691 days (21.06 yr)  
   first obs. used      1999-01-14  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54216  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:49:47  

Additional Information
 Earth MOID = 1.27908 au 
 Jupiter MOID = 2.41943 au 
 T_jup = 3.355 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO453222  
diameter diameter 2.824 km 0.446 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.266   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79965 (1999 CD121)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1999 CD121 = 2000 HM55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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