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46512 (1951 QD)
Classification: Main-belt Asteroid          SPK-ID: 2046512
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .226334667690119 4.0343e-08  
a 2.805479473121449 1.5134e-08 au
q 2.170502208861056 1.1224e-07 au
i 8.679801166128513 4.1262e-06 deg
node 125.4970366482654 2.915e-05 deg
peri 295.9692284451432 3.054e-05 deg
M 224.9890309511757 1.177e-05 deg
tp 2459644.188312556029
(2022-Mar-05.68831256)
5.9546e-05 TDB
period 1716.362708546817
4.70
1.3888e-05
3.802e-08
d
yr
n .2097458760944528 1.6971e-09 deg/d
Q 3.440456737381842 1.8559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      24767 days (67.81 yr)  
   first obs. used      1951-08-31  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:29:37  

Additional Information
 Earth MOID = 1.20018 au 
 Jupiter MOID = 1.9497 au 
 T_jup = 3.269 
[ 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 14.4   n/a MPO385113  
diameter diameter 8.239 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46512 (1951 QD)          Discovered 1951-Aug-31 by Cunningham, L. E. at Mount Wilson
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1951 QD = 1998 XF90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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