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18323 (1983 RZ2)
Classification: Main-belt Asteroid          SPK-ID: 2018323
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024892658611915 5.5735e-08  
a 2.57180383923409 1.6508e-08 AU
q 2.051041167888585 1.4485e-07 AU
i 8.906343825720981 4.9967e-06 deg
node 112.8307454015483 3.886e-05 deg
peri 215.6473800489848 4.1163e-05 deg
M 208.6440464414648 1.6759e-05 deg
tp 2457633.862279652786
(2016-Sep-02.36227965)
7.2622e-05 JED
period 1506.451614979403
4.12
1.4504e-05
3.971e-08
d
yr
n .2389721624115502 2.3009e-09 deg/d
Q 3.092566510579595 1.985e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1230  
   data-arc span      11613 days (31.79 yr)  
   first obs. used      1983-09-02  
   last obs. used      2015-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51977  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:22:41  

Additional Information
 Earth MOID = 1.04714 AU 
 T_jup = 3.384 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO250394  

18323 (1983 RZ2)          Discovered 1983-Sep-02 by Debehogne, H. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1983 RZ2 = 1987 OK = 1999 GX3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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