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109142 (2001 QP56)
Classification: Main-belt Asteroid          SPK-ID: 2109142
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 .1691744880030414 5.6498e-08  
a 2.444216062462338 1.411e-08 au
q 2.030717061526462 1.3231e-07 au
i 2.485514688979845 5.8651e-06 deg
node 15.99759140251038 0.00010035 deg
peri 27.94889965377471 0.00010141 deg
M 273.2567124917108 1.8086e-05 deg
tp 2459336.811094467219
(2021-May-02.31109447)
7.2097e-05 TDB
period 1395.750581814519
3.82
1.2086e-05
3.309e-08
d
yr
n .2579257388035539 2.2334e-09 deg/d
Q 2.857715063398214 1.6497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      670  
   data-arc span      7419 days (20.31 yr)  
   first obs. used      1999-02-12  
   last obs. used      2019-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:20:03  

Additional Information
 Earth MOID = 1.04002 au 
 Jupiter MOID = 2.53934 au 
 T_jup = 3.479 
[ 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 15.9   n/a MPO280505  
diameter diameter 1.557 km 0.331 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.383   0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109142 (2001 QP56)          Discovered 2001-Aug-16 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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