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56121 (1999 CB20)
Classification: Main-belt Asteroid          SPK-ID: 2056121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07439789104773928 5.0937e-08  
a 2.561224346529955 1.4977e-08 au
q 2.370674656648002 1.3204e-07 au
i 11.68610464806353 4.6036e-06 deg
node 108.1983691861137 2.451e-05 deg
peri 103.0155255468758 3.7548e-05 deg
M 263.4211685089775 2.908e-05 deg
tp 2459002.151418332574
(2020-Jun-01.65141833)
0.0001219 TDB
period 1497.165666299944
4.10
1.3132e-05
3.595e-08
d
yr
n .2404543519153058 2.1091e-09 deg/d
Q 2.751774036411907 1.6091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      7352 days (20.13 yr)  
   first obs. used      1999-01-19  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57696  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:23:25  

Additional Information
 Earth MOID = 1.39504 au 
 Jupiter MOID = 2.30833 au 
 T_jup = 3.402 
[ 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 MPO333303  
diameter diameter 6.039 km 2.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.040   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

56121 (1999 CB20)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 CB20 = 2001 TJ137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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