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18392 (1992 PT4)
Classification: Main-belt Asteroid          SPK-ID: 2018392
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1753804329258931 6.8452e-08  
a 2.412311369403778 1.8228e-08 AU
q 1.989239157085689 1.7291e-07 AU
i 9.617285590269331 5.6673e-06 deg
node 134.9016974846782 3.915e-05 deg
peri 153.76776919 4.4101e-05 deg
M 9.847139492231541 2.0082e-05 deg
tp 2456963.066876961647
(2014-Nov-01.56687696)
7.6317e-05 JED
period 1368.511566677631
3.75
1.5511e-05
4.247e-08
d
yr
n .2630595230363897 2.9816e-09 deg/d
Q 2.835383581721866 2.1425e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      881  
   data-arc span      8002 days (21.91 yr)  
   first obs. used      1992-08-02  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50421  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:30:58  

Additional Information
 Earth MOID = .979176 AU 
 T_jup = 3.479 
[ 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 MPO302178  

18392 (1992 PT4)          Discovered 1992-Aug-02 by Holt, H. E. at Palomar (675)
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 PT4 = 1999 JH9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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