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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1753007457118321 7.5583e-08  
a 2.412032368210281 2.0862e-08 AU
q 1.989201295381943 1.8609e-07 AU
i 9.617109530215945 8.7614e-06 deg
node 134.9033309376879 4.0884e-05 deg
peri 153.7911763790858 4.7164e-05 deg
M 317.2101228648247 2.7024e-05 deg
tp 2456963.134119531340
(2014-Nov-01.63411953)
0.0001036 JED
period 1368.274156205815
3.75
1.7751e-05
4.86e-08
d
yr
n .2631051667293561 3.4134e-09 deg/d
Q 2.83486344103862 2.4519e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      795  
   data-arc span      7920 days (21.68 yr)  
   first obs. used      1992-08-02  
   last obs. used      2014-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51693  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:12:17  

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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