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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1753804328365905 6.8448e-08  
a 2.412311369474682 1.8226e-08 AU
q 1.989239157359584 1.7291e-07 AU
i 9.617285638079743 5.6647e-06 deg
node 134.9016973637657 3.9139e-05 deg
peri 153.7677694027562 4.4091e-05 deg
M 9.847139375356774 2.0078e-05 deg
tp 2456963.066877404287
(2014-Nov-01.56687740)
7.6302e-05 JED
period 1368.511566737966
3.75
1.5509e-05
4.246e-08
d
yr
n .2630595230247919 2.9813e-09 deg/d
Q 2.83538358158978 2.1422e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      8041 days (22.02 yr)  
   first obs. used      1992-08-02  
   last obs. used      2014-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49875  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:39:00  

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 14.0 mag n/a MPO319315  
rotation period rot_per 14.763 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2014) http://www.asu.cas.cz/~ppravec/neo.htm]

18392 (1992 PT4)          Discovered 1992-Aug-02 by Holt, H. E. at Palomar
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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