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190618 (2000 WM18)
Classification: Main-belt Asteroid          SPK-ID: 2190618
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2001730211865341 5.959e-08  
a 2.631697274263035 1.3083e-08 au
q 2.104902480025436 1.5535e-07 au
i 3.150966431054476 4.301e-06 deg
node 130.5845372738457 0.00011538 deg
peri 287.9370868438191 0.00011596 deg
M 257.8031314740641 1.1721e-05 deg
tp 2459643.177461261311
(2022-Mar-04.67746126)
5.1923e-05 TDB
period 1559.381303485127
4.27
1.1628e-05
3.184e-08
d
yr
n .2308607902348328 1.7215e-09 deg/d
Q 3.158492068500633 1.5702e-08 au
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      7208 days (19.73 yr)  
   first obs. used      2000-11-21  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52674  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:08:25  

Additional Information
 Earth MOID = 1.11912 au 
 Jupiter MOID = 2.19256 au 
 T_jup = 3.369 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457148.5 (2015-May-06.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027195801161853 5.9356e-08  
q 2.094674244065635 1.5455e-07 au
tp 2456531.215557291429
(2013-Aug-26.71555729)
4.7807e-05 TDB
node 130.6385143697582 0.00011566 deg
peri 288.1737222248676 0.00011621 deg
i 3.148980127891028 4.2991e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      7208 days (19.73 yr)  
   first obs. used      2000-11-21  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52674  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:08:25  

Additional Information
 Jupiter MOID = 2.19256 au 
 T_jup = 3.369 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.523112087266122E-15 -9.153232772467545E-15 -9.932126728510287E-13 -7.720882044522998E-14 -2.555844084971757E-13 -2.959975578539478E-15
q -9.153232772467545E-15 2.388624241006351E-14 2.549993673880064E-12 2.044806922489166E-13 6.616408212014158E-13 7.773963878768267E-15
tp -9.932126728510287E-13 2.549993673880064E-12 2.285525121096567E-9 2.078357988503932E-11 5.986690555971289E-10 4.982222093439211E-13
node -7.720882044522998E-14 2.044806922489166E-13 2.078357988503932E-11 1.337660293692897E-8 -1.334873962445349E-8 2.002324591269311E-11
peri -2.555844084971757E-13 6.616408212014158E-13 5.986690555971289E-10 -1.334873962445349E-8 1.350425360972142E-8 -1.980195830990943E-11
i -2.959975578539478E-15 7.773963878768267E-15 4.982222093439211E-13 2.002324591269311E-11 -1.980195830990943E-11 1.848252557378139E-11

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 16.1   n/a MPO281003  
diameter diameter 3.195 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190618 (2000 WM18)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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