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JPL Small-Body Database Browser
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441818 (2009 MW8)
Classification: Main-belt Asteroid          SPK-ID: 2441818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2087698477305384 1.009e-07  
a 3.174935043322859 9.4132e-08 au
q 2.512104337773995 3.4745e-07 au
i 25.9639681111341 1.537e-05 deg
node 292.2614318045767 2.5518e-05 deg
peri 315.923883029142 5.3921e-05 deg
M 295.4055291379627 5.5951e-05 deg
tp 2458971.260567020950
(2020-May-01.76056702)
0.00032859 TDB
period 2066.334816994155
5.66
9.1895e-05
2.516e-07
d
yr
n .1742215235591311 7.7481e-09 deg/d
Q 3.837765748871723 1.1378e-07 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      4429 days (12.13 yr)  
   first obs. used      2006-12-21  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66002  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:19:51  

Additional Information
 Earth MOID = 1.54847 au 
 Jupiter MOID = 1.54395 au 
 T_jup = 3.013 
[ 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 15.3   n/a MPO434639  
diameter diameter 5.012 km 0.951 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441818 (2009 MW8)          Discovered 2009-Jun-28 by OAM at La Sagra
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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