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160883 (2001 QW2)
Classification: Main-belt Asteroid          SPK-ID: 2160883
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1781055049091965 4.4186e-08  
a 3.185381223840832 2.4345e-08 au
q 2.618047292640386 1.5246e-07 au
i 17.07309827370865 3.9984e-06 deg
node 308.4045688804259 1.8938e-05 deg
peri 130.8720621474522 2.6336e-05 deg
M .8111137164977773 1.6182e-05 deg
tp 2458995.821358211920
(2020-May-26.32135821)
9.3335e-05 TDB
period 2076.541192006279
5.69
2.3806e-05
6.518e-08
d
yr
n .1733652100838804 1.9875e-09 deg/d
Q 3.752715155041278 2.8681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1074  
   data-arc span      6763 days (18.52 yr)  
   first obs. used      2001-07-27  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4384  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:26:52  

Additional Information
 Earth MOID = 1.66766 au 
 Jupiter MOID = 1.55557 au 
 T_jup = 3.105 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457672.5 (2016-Oct-11.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .17710104584715 4.424e-08  
q 2.621203422932506 1.529e-07 au
tp 2456922.121135885473
(2014-Sep-21.62113589)
9.5503e-05 TDB
node 308.4439917171637 1.894e-05 deg
peri 131.1304537443933 2.6423e-05 deg
i 17.0686573793833 3.9998e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1074  
   data-arc span      6763 days (18.52 yr)  
   first obs. used      2001-07-27  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4384  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:26:52  

Additional Information
 Jupiter MOID = 1.55557 au 
 T_jup = 3.105 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.957217904519808E-15 -6.722208499159182E-15 -3.361877818466842E-13 1.859669489824524E-15 -3.03751403087862E-14 -1.20611556596922E-14
q -6.722208499159182E-15 2.33784460839653E-14 6.711919192971116E-13 -7.828042451642208E-15 3.499077390100565E-14 4.202674313984402E-14
tp -3.361877818466842E-13 6.711919192971116E-13 9.120785451202265E-9 1.727976490210822E-11 1.805819974872146E-9 2.665097688670078E-11
node 1.859669489824524E-15 -7.828042451642208E-15 1.727976490210822E-11 3.587249534726842E-10 -3.394229457603104E-10 2.509995504843802E-11
peri -3.03751403087862E-14 3.499077390100565E-14 1.805819974872146E-9 -3.394229457603104E-10 6.981613673435438E-10 -1.859101380529615E-11
i -1.20611556596922E-14 4.202674313984402E-14 2.665097688670078E-11 2.509995504843802E-11 -1.859101380529615E-11 1.599800215880703E-11

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 14.0   n/a MPO338317  
diameter diameter 9.142 km 0.309 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160883 (2001 QW2)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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