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18194 (2000 QE100)
Classification: Main-belt Asteroid          SPK-ID: 2018194
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01167205903613677 3.2891e-08  
a 3.156249985431775 1.9839e-08 au
q 3.119410049269009 1.0428e-07 au
i 10.17992313313417 5.0098e-06 deg
node 150.237213289053 2.3955e-05 deg
peri 314.990528864008 0.00024124 deg
M 81.27208244694977 0.00023945 deg
tp 2458538.124936274375
(2019-Feb-23.62493627)
0.0013626 TDB
period 2048.120559109313
5.61
1.931e-05
5.287e-08
d
yr
n .1757709029377435 1.6572e-09 deg/d
Q 3.19308992159454 2.007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1222  
   data-arc span      9394 days (25.72 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51735  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:46:12  

Additional Information
 Earth MOID = 2.1398 au 
 Jupiter MOID = 1.80764 au 
 T_jup = 3.182 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO431708  
rotation period rot_per 16.624 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

18194 (2000 QE100)          Discovered 2000-Aug-28 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 QE100 = 1994 PH4 = 1998 HH152 = 1998 HP111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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