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46726 (1997 SA22)
Classification: Main-belt Asteroid          SPK-ID: 2046726
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2104986785653754 4.4631e-08  
a 2.963670474220366 1.8045e-08 au
q 2.33982175569376 1.3702e-07 au
i 4.540228932024622 6.521e-06 deg
node 328.7700946300772 4.799e-05 deg
peri 54.33069203647236 5.0307e-05 deg
M 149.734367054418 1.7011e-05 deg
tp 2458225.391878425508
(2018-Apr-16.89187843)		 8.3607e-05 TDB
period 1863.559644028855
5.10		 1.702e-05
4.66e-08		 d
yr
n .1931786842205442 1.7644e-09 deg/d
Q 3.587519192746973 2.1844e-08 au
   Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      10038 days (27.48 yr)  
   first obs. used      1992-10-25  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:34:47  

Additional Information
 Earth MOID = 1.34659 au 
 Jupiter MOID = 1.90957 au 
 T_jup = 3.227 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456968.5 (2014-Nov-07.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2085431477424402 4.426e-08  
q 2.348559419464754 1.3561e-07 au
tp 2456361.943105226832
(2013-Mar-10.44310523)		 7.6215e-05 TDB
node 328.8017602305995 4.7955e-05 deg
peri 54.71222799961197 5.033e-05 deg
i 4.53983488522203 6.5186e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      10038 days (27.48 yr)  
   first obs. used      1992-10-25  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:34:47  

Additional Information
 Jupiter MOID = 1.90957 au 
 T_jup = 3.227 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.958918030724845E-15 -5.971974247564209E-15 -1.765815960301557E-12 4.400513765691418E-15 -3.710015455566756E-13 8.685598522550518E-16
q -5.971974247564209E-15 1.838936657005876E-14 5.669025180453786E-12 -1.589773115555388E-14 1.193761238224724E-12 -1.767673862833155E-15
tp -1.765815960301557E-12 5.669025180453786E-12 5.808652898402834E-9 -2.025315926832491E-11 1.173990920937643E-9 -3.427281867480205E-12
node 4.400513765691418E-15 -1.589773115555388E-14 -2.025315926832491E-11 2.299714072244255E-9 -2.296187740893027E-9 3.934397685020954E-11
peri -3.710015455566756E-13 1.193761238224724E-12 1.173990920937643E-9 -2.296187740893027E-9 2.53309583116582E-9 -3.975064147233735E-11
i 8.685598522550518E-16 -1.767673862833155E-15 -3.427281867480205E-12 3.934397685020954E-11 -3.975064147233735E-11 4.24920959700788E-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 14.4   n/a MPO319643  
diameter diameter 8.716 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46726 (1997 SA22)          Discovered 1997-Sep-27 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 SA22 = 1999 CU23 = 2005 GN224 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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