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357729 (2005 QW172)
Classification: Main-belt Asteroid          SPK-ID: 2357729
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1971393394586421 1.0785e-07  
a 2.907319417204625 4.0789e-08 au
q 2.334172387701621 3.2226e-07 au
i 11.41307426714858 1.2105e-05 deg
node 349.15856803 4.1255e-05 deg
peri 340.3430721308886 4.8569e-05 deg
M 11.63303738585554 3.1234e-05 deg
tp 2458941.990259335313
(2020-Apr-02.49025934)
0.00015633 TDB
period 1810.662679112343
4.96
3.8105e-05
1.043e-07
d
yr
n .1988222346177069 4.1841e-09 deg/d
Q 3.480466446707629 4.883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      6824 days (18.68 yr)  
   first obs. used      2000-09-23  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56285  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:43:01  

Additional Information
 Earth MOID = 1.32727 au 
 Jupiter MOID = 1.91508 au 
 T_jup = 3.226 
[ 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 16.6   n/a MPO446592  
diameter diameter 3.235 km 0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

357729 (2005 QW172)          Discovered 2005-Aug-29 by NEAT at Palomar
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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