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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2619601697323751 6.995e-08  
a 3.175467552781368 3.0255e-08 AU
q 2.343621533675111 2.1675e-07 AU
i 12.27847652881207 9.2062e-06 deg
node 159.3550219379191 3.11e-05 deg
peri 338.629857832307 3.6044e-05 deg
M 127.3962526888813 1.4813e-05 deg
tp 2456269.084602282455
(2012-Dec-07.58460228)
8.1731e-05 JED
period 2066.854696435644
5.66
2.9539e-05
8.087e-08
d
yr
n .1741777013259961 2.4893e-09 deg/d
Q 4.007313571887625 3.8181e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      10727 days (29.37 yr)  
   first obs. used      1985-02-12  
   last obs. used      2014-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56405  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:42:14  

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 (809)
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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