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146881 (2002 CH11)
Classification: Main-belt Asteroid          SPK-ID: 2146881
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 .199739141696217 4.7432e-08  
a 2.747799456633873 2.6413e-08 au
q 2.198956351612492 1.3351e-07 au
i 37.99855279357172 8.5046e-06 deg
node 324.425066328412 8.2146e-06 deg
peri 256.0183532346772 2.2719e-05 deg
M 294.0116083432009 2.2921e-05 deg
tp 2459305.458694266689
(2021-Mar-31.95869427)
0.00010787 TDB
period 1663.703678474127
4.55
2.3989e-05
6.568e-08
d
yr
n .2163846871638677 3.12e-09 deg/d
Q 3.296642561655255 3.1689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      7447 days (20.39 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5277  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:40:01  

Additional Information
 Earth MOID = 1.40533 au 
 Jupiter MOID = 2.18559 au 
 T_jup = 3.016 
[ 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 14.7   n/a MPO366829  
diameter diameter 5.775 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.092   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146881 (2002 CH11)          Discovered 2002-Feb-01 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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