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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

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
8.2394e-05 TDB
period 1375.412601015233
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] (  
geometric albedo albedo 0.155   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1956-Oct-02 05:47 < 00:01 Eunom 0.025763738560648 0.0257574716673775 0.0257700057567802 5.62744164919911 5.62744155237712 2435748.740720320 0.389578134451191 342.331293800774 35.5597367981284 -24.3007032264053 45741.6980298031 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:19:53 2020-Nov-13 02:19

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