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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1754960233633219 4.1211e-08  
a 2.411595324827931 1.3376e-08 au
q 1.98836993535905 9.8646e-08 au
i 9.61742186403697 4.0979e-06 deg
node 134.8981603577544 3.8663e-05 deg
peri 153.6581925499576 4.2903e-05 deg
M 167.8256415812082 2.0137e-05 deg
tp 2456962.808112433635
(2014-Nov-01.30811243)
7.5832e-05 JED
period 1367.902290501934
3.75
1.1381e-05
3.116e-08
d
yr
n .263176692150945 2.1896e-09 deg/d
Q 2.834820714296811 1.5723e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1158  
   data-arc span      8594 days (23.53 yr)  
   first obs. used      1992-08-02  
   last obs. used      2016-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47547  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:19:47  

Additional Information
 Earth MOID = .976816 au 
 Jupiter MOID = 2.36504 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 14.2 mag n/a MPO365473  
rotation period rot_per 14.763 h n/a LCDB (Rev. 2016-February); 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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