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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1753007714197731 6.8466e-08  
a 2.412032374902737 1.8195e-08 AU
q 1.98920123889282 1.7291e-07 AU
i 9.61710253335932 5.6734e-06 deg
node 134.903370495829 3.9155e-05 deg
peri 153.7911231584064 4.4111e-05 deg
M 317.2101347432113 2.0077e-05 deg
tp 2456963.134075061295
(2014-Nov-01.63407506)
7.6379e-05 JED
period 1368.274161900461
3.75
1.5482e-05
4.239e-08
d
yr
n .2631051656343338 2.9771e-09 deg/d
Q 2.834863510912654 2.1385e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      872  
   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      .50673  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:40:48  

Additional Information
 Earth MOID = .977213 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 13.8 mag n/a MPO263511  

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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