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8755 Querquedula (4586 P-L)
Classification: Outer Main-belt Asteroid          SPK-ID: 2008755
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1410325544307401 3.6051e-08  
a 3.219137845307781 1.6842e-08 au
q 2.765134611919356 1.1817e-07 au
i 1.385502447380467 3.6479e-06 deg
node 65.44790426352026 0.00018667 deg
peri 335.1239479368832 0.00018724 deg
M 64.45885247563888 1.5347e-05 deg
tp 2458622.764452721160
(2019-May-19.26445272)
8.893e-05 TDB
period 2109.637261565827
5.78
1.6555e-05
4.533e-08
d
yr
n .1706454500774217 1.3391e-09 deg/d
Q 3.673141078696205 1.9217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2048  
   data-arc span      21680 days (59.36 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50741  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:02:39  

Additional Information
 Earth MOID = 1.77339 au 
 Jupiter MOID = 1.73459 au 
 T_jup = 3.173 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456129.5 (2012-Jul-21.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .135050282105232 3.5884e-08  
q 2.785743966357041 1.1643e-07 au
tp 2456514.502412696917
(2013-Aug-10.00241270)
8.9588e-05 TDB
node 65.58292466749012 0.00018598 deg
peri 335.563399728154 0.00018661 deg
i 1.387582695319472 3.6503e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2048  
   data-arc span      21680 days (59.36 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50741  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:02:39  

Additional Information
 Jupiter MOID = 1.73459 au 
 T_jup = 3.173 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.287653108459188E-15 -4.145129514194349E-15 -6.788044653386772E-13 -4.533245588476008E-16 -1.468245321189439E-13 8.479774782205588E-17
q -4.145129514194349E-15 1.355609926008198E-14 2.293654525931431E-12 -7.395474362145584E-17 4.851719427717594E-13 -2.17537611119108E-16
tp -6.788044653386772E-13 2.293654525931431E-12 8.026001914020775E-9 -8.369167059438155E-14 1.403063869413916E-9 -2.212988396061723E-13
node -4.533245588476008E-16 -7.395474362145584E-17 -8.369167059438155E-14 3.458913589750292E-8 -3.45785897539616E-8 -9.007464960043403E-11
peri -1.468245321189439E-13 4.851719427717594E-13 1.403063869413916E-9 -3.45785897539616E-8 3.4822371058269E-8 9.000209984258515E-11
i 8.479774782205588E-17 -2.17537611119108E-16 -2.212988396061723E-13 -9.007464960043403E-11 9.000209984258515E-11 1.332469236276871E-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 13.1   n/a MPO458916  
diameter diameter 11.560 km 0.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8755 Querquedula           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named for anas querquedula, or garganey.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 4586 P-L = 1992 ET28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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