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109540 (2001 QN252)
Classification: Main-belt Asteroid          SPK-ID: 2109540
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 .1571317637642179 4.9006e-08  
a 3.077239878303726 2.5227e-08 au
q 2.593707748700274 1.4788e-07 au
i 2.712188508950331 5.5593e-06 deg
node 60.62471646238387 0.00010626 deg
peri 292.4381281454727 0.00010758 deg
M 151.8932319173761 1.9421e-05 deg
tp 2458168.589938575658
(2018-Feb-19.08993858)
0.00010187 TDB
period 1971.698266817262
5.40
2.4246e-05
6.638e-08
d
yr
n .1825837178328082 2.2452e-09 deg/d
Q 3.560772007907177 2.9191e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      2000-06-04  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56433  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:27:38  

Additional Information
 Earth MOID = 1.5901 au 
 Jupiter MOID = 1.87778 au 
 T_jup = 3.208 
[ 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 MPO417562  
diameter diameter 4.656 km 0.804 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109540 (2001 QN252)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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