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

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2619601647981565 6.9446e-08  
a 3.175467553397314 3.0239e-08 AU
q 2.343621549798154 2.1504e-07 AU
i 12.27847619818873 8.9886e-06 deg
node 159.3550207802383 3.0296e-05 deg
peri 338.6298549260295 3.4774e-05 deg
M 127.3962552761153 1.4248e-05 deg
tp 2456269.084587215655
(2012-Dec-07.58458722)
7.8263e-05 JED
period 2066.854697037006
5.66
2.9523e-05
8.083e-08
d
yr
n .1741777012753183 2.488e-09 deg/d
Q 4.007313556996473 3.816e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      642  
   data-arc span      11094 days (30.37 yr)  
   first obs. used      1985-02-12  
   last obs. used      2015-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55324  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:24:27  

Additional Information
 Earth MOID = 1.36155 AU 
 T_jup = 3.112 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a PDS3 (MPO 6454)  

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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