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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01162674806216699 3.2654e-08  
a 3.155635515226536 1.9666e-08 au
q 3.11894573611497 1.0325e-07 au
i 10.180253794922 5.0034e-06 deg
node 150.2392279362937 2.3879e-05 deg
peri 313.97679744369 0.00024259 deg
M 117.4521527473626 0.00024081 deg
tp 2458532.483545415662
(2019-Feb-17.98354542)
0.00137 TDB
period 2047.522484901937
5.61
1.914e-05
5.24e-08
d
yr
n .1758222450080892 1.6436e-09 deg/d
Q 3.192325294338101 1.9894e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1263  
   data-arc span      9433 days (25.83 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51674  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:16:24  

Additional Information
 Earth MOID = 2.13956 au 
 Jupiter MOID = 1.80801 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 13.86   n/a E2021B10  
rotation period rot_per 16.624 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:
[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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