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118255 (1998 CZ2)
Classification: Main-belt Asteroid          SPK-ID: 2118255
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2131274407781405 4.2017e-08  
a 2.685254926879744 1.2255e-08 au
q 2.112953416476971 1.1507e-07 au
i 5.249169894828124 4.8126e-06 deg
node 153.6636881472533 4.16e-05 deg
peri 13.58158355319623 4.2715e-05 deg
M 12.78552345897967 8.3895e-06 deg
tp 2458943.418848882747
(2020-Apr-03.91884888)
3.7422e-05 TDB
period 1607.22511425831
4.40
1.1002e-05
3.012e-08
d
yr
n .2239885357728062 1.5333e-09 deg/d
Q 3.257556437282516 1.4867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      814  
   data-arc span      8118 days (22.23 yr)  
   first obs. used      1998-02-06  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51208  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:18:43  

Additional Information
 Earth MOID = 1.12044 au 
 Jupiter MOID = 1.71525 au 
 T_jup = 3.336 
[ 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 15.6   n/a MPO426746  

118255 (1998 CZ2)          Discovered 1998-Feb-06 by Elst, E. W. at La Silla
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1998 CZ2 = 2002 AF83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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