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6216 San Jose (1975 SJ)
Classification: Main-belt Asteroid          SPK-ID: 2006216
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09999034947677375 3.486e-08  
a 2.757558390211879 1.1976e-08 au
q 2.481829163071983 9.5546e-08 au
i 3.764201677796615 4.3597e-06 deg
node 30.36569984701703 5.5602e-05 deg
peri 28.08258670245743 5.962e-05 deg
M 240.3269204148729 2.3276e-05 deg
tp 2459556.505988171867
(2021-Dec-08.00598817)
0.0001097 TDB
period 1672.574621090874
4.58
1.0896e-05
2.983e-08
d
yr
n .2152370336488805 1.4022e-09 deg/d
Q 3.033287617351774 1.3174e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2046  
   data-arc span      23804 days (65.17 yr)  
   first obs. used      1955-04-16  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49045  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:28:36  

Additional Information
 Earth MOID = 1.49464 au 
 Jupiter MOID = 2.26113 au 
 T_jup = 3.332 
[ 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 13.0   n/a MPO395058  
diameter diameter 8.033 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.208   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6216 San Jose (1975 SJ)          Discovered 1975-Sep-30 by Bus, S. J. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1975 SJ = 1975 VH2 = 1984 SV4 = 1989 VG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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