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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024892722245298 6.0167e-08  
a 2.571803841532804 1.8104e-08 AU
q 2.051041153356577 1.5403e-07 AU
i 8.906344514087751 5.6999e-06 deg
node 112.830744912891 3.9149e-05 deg
peri 215.6473794339169 4.1567e-05 deg
M 208.6440462077789 1.6777e-05 deg
tp 2457633.862281479827
(2016-Sep-02.36228148)
7.2851e-05 JED
period 1506.451616999134
4.12
1.5906e-05
4.355e-08
d
yr
n .2389721620911552 2.5233e-09 deg/d
Q 3.092566529709032 2.1769e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1122  
   data-arc span      11442 days (31.33 yr)  
   first obs. used      1983-09-02  
   last obs. used      2014-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5116  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:38:45  

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 (809)
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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