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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .224895842412809 5.4822e-08  
a 2.560413656431378 1.2435e-08 au
q 1.984587270242983 1.4497e-07 au
i 3.851248804161305 5.6917e-06 deg
node 12.22764799013888 8.0838e-05 deg
peri 92.06944706829641 8.2473e-05 deg
M 184.3681081465716 1.8057e-05 deg
tp 2459730.570008611025
(2022-May-31.07000861)
7.8854e-05 TDB
period 1496.454888268849
4.10
1.0902e-05
2.985e-08
d
yr
n .2405685616199633 1.7525e-09 deg/d
Q 3.136240042619773 1.5232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      9713 days (26.59 yr)  
   first obs. used      1992-09-26  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54841  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:36:28  

Additional Information
 Earth MOID = 1.00584 au 
 Jupiter MOID = 2.02839 au 
 T_jup = 3.396 
[ 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 15.9   n/a MPO432706  
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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