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19121 (1985 CY1)
Classification: Main-belt Asteroid          SPK-ID: 2019121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2610686831368615 3.0574e-08  
a 3.182190997269355 1.7304e-08 au
q 2.351420584122268 9.6044e-08 au
i 12.28419428840503 4.0987e-06 deg
node 159.164285052961 2.1181e-05 deg
peri 339.4822344256555 2.3307e-05 deg
M 114.8647731177767 9.4112e-06 deg
tp 2458338.935565990610
(2018-Aug-08.43556599)
5.2142e-05 TDB
period 2073.422423419403
5.68
1.6912e-05
4.63e-08
d
yr
n .1736259798938138 1.4162e-09 deg/d
Q 4.012961410416442 2.1821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1303  
   data-arc span      12617 days (34.54 yr)  
   first obs. used      1985-02-12  
   last obs. used      2019-08-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50087  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:42:09  

Additional Information
 Earth MOID = 1.36849 au 
 Jupiter MOID = 1.05418 au 
 T_jup = 3.110 
[ 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 13.9   n/a MPO435876  
diameter diameter 7.756 km 0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19121 (1985 CY1)          Discovered 1985-Feb-12 by Debehogne, H. at La Silla
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1985 CY1 = 1991 GS9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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