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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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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09961066682051471 3.0556e-08  
a 2.755497896354866 1.1235e-08 au
q 2.481020913476433 8.545e-08 au
i 3.764789967101244 3.661e-06 deg
node 30.27922828339256 5.5474e-05 deg
peri 28.65331989365952 5.9461e-05 deg
M 282.8448191530934 2.3513e-05 deg
tp 2459558.564401046116
(2021-Dec-10.06440105)
0.00011015 TDB
period 1670.700307635528
4.57
1.0218e-05
2.798e-08
d
yr
n .2154785022512463 1.3179e-09 deg/d
Q 3.029974879233301 1.2354e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2279  
   data-arc span      23992 days (65.69 yr)  
   first obs. used      1955-04-16  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:29:37  

Additional Information
 Earth MOID = 1.49323 au 
 Jupiter MOID = 2.26163 au 
 T_jup = 3.333 
[ 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 13.07   n/a E2021B10  
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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