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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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1410325569074064 3.585e-08  
a 3.219137843458081 1.6674e-08 au
q 2.765134602357793 1.173e-07 au
i 1.38550262469664 3.6292e-06 deg
node 65.44790536519352 0.00018565 deg
peri 335.1239456995213 0.00018622 deg
M 64.45885407780088 1.5235e-05 deg
tp 2458622.764443657892
(2019-May-19.26444366)		 8.8316e-05 TDB
period 2109.637259747547
5.78		 1.6391e-05
4.488e-08		 d
yr
n .1706454502244997 1.3258e-09 deg/d
Q 3.673141084558368 1.9025e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2090  
   data-arc span      21956 days (60.11 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50473  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:36:03  

Additional Information
 Earth MOID = 1.77339 au 
 Jupiter MOID = 1.73459 au 
 T_jup = 3.173 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456174.5 (2012-Sep-04.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1350591330522344 3.5679e-08  
q 2.785579435673134 1.1557e-07 au
tp 2456514.598690700935
(2013-Aug-10.09869070)		 8.9168e-05 TDB
node 65.58200945648338 0.00018498 deg
peri 335.5882562599107 0.0001856 deg
i 1.387578268748466 3.6316e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2090  
   data-arc span      21956 days (60.11 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50473  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:36:03  

Additional Information
 Jupiter MOID = 1.73459 au 
 T_jup = 3.173 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.272987711208408E-15 -4.091090263692217E-15 -6.505104620697346E-13 -1.915452030812373E-16 -1.430326616020633E-13 8.073117080819698E-17
q -4.091090263692217E-15 1.335641311966639E-14 2.188253612310986E-12 -9.781622591065733E-16 4.710344310883933E-13 -2.038582162820131E-16
tp -6.505104620697346E-13 2.188253612310986E-12 7.950877419560731E-9 6.089087104534373E-14 1.391622378596407E-9 -2.216100677442126E-13
node -1.915452030812373E-16 -9.781622591065733E-16 6.089087104534373E-14 3.421644017139554E-8 -3.420597908499465E-8 -8.378633617797589E-11
peri -1.430326616020633E-13 4.710344310883933E-13 1.391622378596407E-9 -3.420597908499465E-8 3.444813211285934E-8 8.371565796566536E-11
i 8.073117080819698E-17 -2.038582162820131E-16 -2.216100677442126E-13 -8.378633617797589E-11 8.371565796566536E-11 1.318876017951827E-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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