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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2619722990405599 7.8398e-08  
a 3.175003584610136 2.532e-08 AU
q 2.343240596087799 2.3982e-07 AU
i 12.27782255990364 1.09e-05 deg
node 159.3622244597582 3.3709e-05 deg
peri 338.5873422463325 3.875e-05 deg
M 92.60373644398474 1.6241e-05 deg
tp 2456268.954107752792
(2012-Dec-07.45410775)
8.9137e-05 JED
period 2066.401730180132
5.66
2.4718e-05
6.767e-08
d
yr
n .1742158820050049 2.084e-09 deg/d
Q 4.006766573132472 3.1953e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      10363 days (28.37 yr)  
   first obs. used      1985-02-12  
   last obs. used      2013-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59867  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 19:02:59  

Additional Information
 Earth MOID = 1.36089 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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