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160214 (2002 CD257)
Classification: Main-belt Asteroid          SPK-ID: 2160214
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05230462866019239 4.1939e-08  
a 3.130227648772988 2.989e-08 au
q 2.96650225398205 1.4136e-07 au
i 11.66434586794928 4.6214e-06 deg
node 117.9121009917268 2.1484e-05 deg
peri 153.7738584071822 5.8211e-05 deg
M 19.14437755112479 5.038e-05 deg
tp 2459092.927549643918
(2020-Aug-31.42754964)		 0.00028361 TDB
period 2022.843627314194
5.54		 2.8973e-05
7.932e-08		 d
yr
n .1779672907677919 2.549e-09 deg/d
Q 3.293953043563926 3.1453e-08 au
   Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      6821 days (18.67 yr)  
   first obs. used      2002-01-06  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58684  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:00:23  

Additional Information
 Earth MOID = 1.95268 au 
 Jupiter MOID = 1.8677 au 
 T_jup = 3.179 
[ 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 14.89   n/a E2021B55  
diameter diameter 4.073 km 0.779 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.154   0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160214 (2002 CD257)          Discovered 2002-Feb-05 by LONEOS at Anderson Mesa
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

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