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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024892664185173 5.9741e-08  
a 2.571803839458548 1.792e-08 AU
q 2.05104116663426 1.5316e-07 AU
i 8.906344109336123 5.6481e-06 deg
node 112.8307463726187 3.9048e-05 deg
peri 215.6473791492817 4.1451e-05 deg
M 208.6440462745415 1.6777e-05 deg
tp 2457633.862280434207
(2016-Sep-02.36228043)
7.2842e-05 JED
period 1506.451615176619
4.12
1.5745e-05
4.311e-08
d
yr
n .2389721623802653 2.4977e-09 deg/d
Q 3.092566512282836 2.1549e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1129  
   data-arc span      11474 days (31.41 yr)  
   first obs. used      1983-09-02  
   last obs. used      2015-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5113  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:51:12  

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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