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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 ]

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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 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 
[ 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 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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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