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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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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244351414430294 3.8416e-08  
a 2.804634910413426 1.5232e-08 au
q 2.175176277598731 1.0704e-07 au
i 8.684135186402775 4.0558e-06 deg
node 125.4818240035738 2.8645e-05 deg
peri 296.1184364131577 3.0041e-05 deg
M 307.6954812194906 1.1637e-05 deg
tp 2459645.758306625537
(2022-Mar-07.25830663)
5.6707e-05 TDB
period 1715.587725063463
4.70
1.3976e-05
3.826e-08
d
yr
n .2098406247262481 1.7095e-09 deg/d
Q 3.434093543228121 1.865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1070  
   data-arc span      25545 days (69.94 yr)  
   first obs. used      1951-08-31  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48758  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 00:52:46  

Additional Information
 Earth MOID = 1.20452 au 
 Jupiter MOID = 1.95579 au 
 T_jup = 3.270 
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Orbital Elements at Epoch 2456969.5 (2014-Nov-08.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .229674605681948 3.8695e-08  
q 2.15626253995456 1.086e-07 au
tp 2456219.311111085702
(2012-Oct-18.81111109)
4.3801e-05 TDB
node 125.5904623902061 2.8759e-05 deg
peri 295.9083647606794 3.0043e-05 deg
i 8.674881418402457 4.053e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1070  
   data-arc span      25545 days (69.94 yr)  
   first obs. used      1951-08-31  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48758  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 00:52:46  

Additional Information
 Jupiter MOID = 1.95579 au 
 T_jup = 3.270 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.497305270903417E-15 -4.180457618781258E-15 1.267836144799307E-13 -2.317393077325875E-15 -9.163124841102846E-15 1.851812764537076E-15
q -4.180457618781258E-15 1.179441667679946E-14 -2.67520891715816E-13 6.822336855629572E-15 5.204232306509166E-14 -4.957051357208299E-15
tp 1.267836144799307E-13 -2.67520891715816E-13 1.918494637073934E-9 -4.704750174197788E-12 4.023359254174009E-10 -1.080414290505174E-12
node -2.317393077325875E-15 6.822336855629572E-15 -4.704750174197788E-12 8.270983270755819E-10 -8.181640964611048E-10 -4.050034741978745E-13
peri -9.163124841102846E-15 5.204232306509166E-14 4.023359254174009E-10 -8.181640964611048E-10 9.02592727102572E-10 1.374138584565431E-13
i 1.851812764537076E-15 -4.957051357208299E-15 -1.080414290505174E-12 -4.050034741978745E-13 1.374138584565431E-13 1.642690045082805E-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 14.48   n/a MPO636722  
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

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