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18415 (1993 PW5)
Classification: Main-belt Asteroid          SPK-ID: 2018415
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1125469567926355 2.9817e-08  
a 2.2079040128661 5.4801e-09 au
q 1.959411135327773 6.4931e-08 au
i 2.916754508363137 3.2161e-06 deg
node 226.59572419 6.7043e-05 deg
peri 217.8503109732193 6.8845e-05 deg
M 18.81943729472641 1.5532e-05 deg
tp 2459137.856957448162
(2020-Oct-15.35695745)
5.1693e-05 TDB
period 1198.308693585697
3.28
4.4614e-06
1.221e-08
d
yr
n .3004234233858161 1.1185e-09 deg/d
Q 2.456396890404428 6.0969e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1885  
   data-arc span      11111 days (30.42 yr)  
   first obs. used      1990-10-18  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48943  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:43:24  

Additional Information
 Earth MOID = .976042 au 
 Jupiter MOID = 2.71993 au 
 T_jup = 3.650 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.92   n/a MPCxxxxx  
rotation period rot_per 6.355 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

18415 (1993 PW5)          Discovered 1993-Aug-15 by Elst, E. W. at Caussols
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 PW5 = 1992 GS2 = 1997 YE21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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