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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1410325575622197 3.587e-08  
a 3.219137843112303 1.6692e-08 au
q 2.765134599952848 1.1739e-07 au
i 1.385502533523482 3.6332e-06 deg
node 65.4479067105525 0.00018567 deg
peri 335.1239444590484 0.00018624 deg
M 64.45885410443286 1.5235e-05 deg
tp 2458622.764443562687
(2019-May-19.26444356)
8.8316e-05 TDB
period 2109.637259407643
5.78
1.6408e-05
4.492e-08
d
yr
n .170645450251994 1.3272e-09 deg/d
Q 3.673141086271759 1.9046e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2086  
   data-arc span      21944 days (60.08 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50496  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:18:37  

Additional Information
 Earth MOID = 1.77339 au 
 Jupiter MOID = 1.73459 au 
 T_jup = 3.173 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456165.5 (2012-Aug-26.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1350587869495604 3.5701e-08  
q 2.785610859592145 1.1566e-07 au
tp 2456514.577579631446
(2013-Aug-10.07757963)
8.9169e-05 TDB
node 65.58207442149369 0.00018499 deg
peri 335.583089938871 0.00018562 deg
i 1.387578383484898 3.6357e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2086  
   data-arc span      21944 days (60.08 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50496  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:18:37  

Additional Information
 Jupiter MOID = 1.73459 au 
 T_jup = 3.173 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.274577171196865E-15 -4.096921181390449E-15 -6.498045087593444E-13 -1.955670641536632E-16 -1.42797233966882E-13 8.102015487824615E-17
q -4.096921181390449E-15 1.337791302086199E-14 2.185615962217383E-12 -9.629672813773981E-16 4.701425129554891E-13 -2.047755540669767E-16
tp -6.498045087593444E-13 2.185615962217383E-12 7.951095527365783E-9 8.171134715496827E-14 1.391671995779429E-9 -2.230887837994708E-13
node -1.955670641536632E-16 -9.629672813773981E-16 8.171134715496827E-14 3.422231070750638E-8 -3.421184406043175E-8 -8.421560840820959E-11
peri -1.42797233966882E-13 4.701425129554891E-13 1.391671995779429E-9 -3.421184406043175E-8 3.445401784858717E-8 8.414452069066232E-11
i 8.102015487824615E-17 -2.047755540669767E-16 -2.230887837994708E-13 -8.421560840820959E-11 8.414452069066232E-11 1.321829634615075E-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

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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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