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18186 (2000 QW50)
Classification: Main-belt Asteroid          SPK-ID: 2018186
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09175763281462633 3.6859e-08  
a 2.966482679596916 1.6257e-08 au
q 2.694285251131513 1.0662e-07 au
i 2.380874533999913 3.5086e-06 deg
node 103.2651907714066 9.4401e-05 deg
peri 103.1074547864278 9.6696e-05 deg
M 115.4967974801641 1.9538e-05 deg
tp 2458601.773344179692
(2019-Apr-28.27334418)
0.0001022 TDB
period 1866.212750464609
5.11
1.5341e-05
4.2e-08
d
yr
n .1929040512183699 1.5858e-09 deg/d
Q 3.238680108062318 1.7749e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1522  
   data-arc span      10987 days (30.08 yr)  
   first obs. used      1990-09-21  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51377  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:24:53  

Additional Information
 Earth MOID = 1.69016 au 
 Jupiter MOID = 1.7203 au 
 T_jup = 3.256 
[ 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 14.11   n/a E2021B10  
diameter diameter 7.013 km 0.440 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.30 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.090   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18186 (2000 QW50)          Discovered 2000-Aug-24 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 QW50 = 1990 SM30 = 1998 EE16 = 1999 LQ20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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