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17641 (1996 SW7)
Classification: Main-belt Asteroid          SPK-ID: 2017641
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1119566076326012 2.907e-08  
a 2.420414325363077 1.0352e-08 au
q 2.149432948430076 6.8023e-08 au
i 6.20443375013769 3.6041e-06 deg
node 184.8239578788048 3.261e-05 deg
peri 128.4097694660744 3.8178e-05 deg
M 149.8893233926191 2.1893e-05 deg
tp 2458427.834266244845
(2018-Nov-05.33426624)
8.2394e-05 TDB
period 1375.412601015233
3.77
8.8236e-06
2.416e-08
d
yr
n .2617396406971066 1.6791e-09 deg/d
Q 2.691395702296078 1.1511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1327  
   data-arc span      9274 days (25.39 yr)  
   first obs. used      1995-06-01  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:19:50  

Additional Information
 Earth MOID = 1.14241 au 
 Jupiter MOID = 2.55657 au 
 T_jup = 3.497 
[ 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 14.9   n/a MPO439215  
diameter diameter 3.228 km 0.842 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.155   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17641 (1996 SW7)          Discovered 1996-Sep-18 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1996 SW7 = 1998 BH46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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