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357782 (2005 SJ257)
Classification: Main-belt Asteroid          SPK-ID: 2357782
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2148842098829508 1.1345e-07  
a 3.050980757038819 3.9827e-08 au
q 2.395373167694445 3.3044e-07 au
i 3.28369863772726 9.438e-06 deg
node 39.89363067405464 0.00013162 deg
peri 325.2532088870552 0.000133 deg
M 273.5234168425307 2.7541e-05 deg
tp 2459468.077549314316
(2021-Sep-10.57754931)
0.00015666 TDB
period 1946.514439020298
5.33
3.8114e-05
1.044e-07
d
yr
n .1849459694638545 3.6214e-09 deg/d
Q 3.706588346383193 4.8385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      4963 days (13.59 yr)  
   first obs. used      2005-09-03  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60943  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:26:31  

Additional Information
 Earth MOID = 1.39465 au 
 Jupiter MOID = 1.75382 au 
 T_jup = 3.199 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456918.5 (2014-Sep-18.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2157571684291125 1.1322e-07  
q 2.390744070793494 3.2808e-07 au
tp 2457526.440082361310
(2016-May-17.94008236)
0.00012366 TDB
node 39.91504732789636 0.0001315 deg
peri 325.8114457636339 0.00013285 deg
i 3.286431232792301 9.4454e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      4963 days (13.59 yr)  
   first obs. used      2005-09-03  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60943  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:26:31  

Additional Information
 Jupiter MOID = 1.75382 au 
 T_jup = 3.199 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.28185839076776E-14 -3.702258767977174E-14 7.204052940478057E-12 8.776778850662164E-14 6.725928711898657E-13 -4.431355689726908E-15
q -3.702258767977174E-14 1.076360840956296E-13 -1.900810410745094E-11 -2.492962527784644E-13 -1.683299199510477E-12 1.280220559431886E-14
tp 7.204052940478057E-12 -1.900810410745094E-11 1.529234284835949E-8 8.376478772154928E-11 2.335433309359752E-9 -4.34976489276091E-12
node 8.776778850662164E-14 -2.492962527784644E-13 8.376478772154928E-11 1.72917208582819E-8 -1.725068203102974E-8 -3.163240216715083E-10
peri 6.725928711898657E-13 -1.683299199510477E-12 2.335433309359752E-9 -1.725068203102974E-8 1.764873054568244E-8 3.151484157822255E-10
i -4.431355689726908E-15 1.280220559431886E-14 -4.34976489276091E-12 -3.163240216715083E-10 3.151484157822255E-10 8.921586456366193E-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 16.3   n/a MPO434258  
diameter diameter 2.551 km 0.534 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

357782 (2005 SJ257)          Discovered 2005-Sep-22 by NEAT at Palomar
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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