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243955 (2001 QW179)
Classification: Main-belt Asteroid          SPK-ID: 2243955
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2342466626749014 4.1631e-08  
a 2.680913400448791 1.8869e-08 au
q 2.05291838347324 1.1644e-07 au
i 7.905960333631194 5.4898e-06 deg
node 54.25592999900908 3.3553e-05 deg
peri 246.6704824401207 3.5623e-05 deg
M 126.21873507018 1.2073e-05 deg
tp 2458438.360726758360
(2018-Nov-15.86072676)
5.1054e-05 TDB
period 1603.328842223531
4.39
1.6927e-05
4.634e-08
d
yr
n .2245328534729933 2.3705e-09 deg/d
Q 3.308908417424341 2.3289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      8674 days (23.75 yr)  
   first obs. used      1996-04-20  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56352  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:26:48  

Additional Information
 Earth MOID = 1.05289 au 
 Jupiter MOID = 1.97796 au 
 T_jup = 3.323 
[ 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 16.1   n/a MPO450094  
diameter diameter 3.381 km 0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243955 (2001 QW179)          Discovered 2001-Aug-25 by NEAT at Palomar
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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