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120521 (1994 CY11)
Classification: Main-belt Asteroid          SPK-ID: 2120521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2251025614602633 4.8686e-08  
a 2.558954238496034 1.1949e-08 au
q 1.982927084750979 1.2833e-07 au
i 3.854811094377673 4.8936e-06 deg
node 12.07500452388911 7.4164e-05 deg
peri 92.49442245869865 7.5496e-05 deg
M 232.1056901032745 1.644e-05 deg
tp 2459731.679038200319
(2022-Jun-01.17903820)
7.0897e-05 TDB
period 1495.175617324403
4.09
1.0473e-05
2.867e-08
d
yr
n .2407743918699098 1.6865e-09 deg/d
Q 3.134981392241089 1.4639e-08 au
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      10211 days (27.96 yr)  
   first obs. used      1992-09-26  
   last obs. used      2020-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53805  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:56:37  

Additional Information
 Earth MOID = 1.00403 au 
 Jupiter MOID = 2.02834 au 
 T_jup = 3.397 
[ 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 15.96   n/a E2021B55  
diameter diameter 1.586 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.368   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120521 (1994 CY11)          Discovered 1994-Feb-07 by Elst, E. W. at La Silla
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1994 CY11 = 1992 SO8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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