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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0993549245694263 2.1793e-08  
a 2.753840205828254 1.0345e-08 au
q 2.480232619901934 6.2774e-08 au
i 3.765830079755303 1.0488e-06 deg
node 30.26395338458661 1.0388e-05 deg
peri 28.96700131532783 1.5232e-05 deg
M 324.7997279181523 1.3222e-05 deg
tp 2459559.711234961212
(2021-Dec-11.21123496)
6.168e-05 TDB
period 1669.192909913218
4.57
9.406e-06
2.575e-08
d
yr
n .2156730943811142 1.2153e-09 deg/d
Q 3.027447791754573 1.1373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2321  
   data-arc span      24179 days (66.20 yr)  
   first obs. used      1955-04-16  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47791  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:01:55  

Additional Information
 Earth MOID = 1.49284 au 
 Jupiter MOID = 2.26267 au 
 T_jup = 3.334 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457032.5 (2015-Jan-10.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028851257094698 2.1999e-08  
q 2.46985750791175 6.3517e-08 au
tp 2456215.950879925208
(2012-Oct-15.45087993)
5.4123e-05 TDB
node 30.50251569268532 1.037e-05 deg
peri 27.84236921691405 1.4836e-05 deg
i 3.772092051171024 1.0505e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2321  
   data-arc span      24179 days (66.20 yr)  
   first obs. used      1955-04-16  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47791  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:01:55  

Additional Information
 Jupiter MOID = 2.26267 au 
 T_jup = 3.334 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.839649743354865E-16 -1.383387177568812E-15 -2.942896684468948E-13 1.136930822851189E-13 -1.490557548797183E-13 1.55160912920553E-15
q -1.383387177568812E-15 4.03445732133891E-15 8.739701475598011E-13 -3.196357732549842E-13 4.360071251930661E-13 -5.274850732645743E-15
tp -2.942896684468948E-13 8.739701475598011E-13 2.92930082780336E-9 -6.589197839959381E-11 6.118735701485795E-10 -1.811345425211497E-11
node 1.136930822851189E-13 -3.196357732549842E-13 -6.589197839959381E-11 1.0753221594163E-10 -1.115257939761809E-10 1.554302582076264E-12
peri -1.490557548797183E-13 4.360071251930661E-13 6.118735701485795E-10 -1.115257939761809E-10 2.200924526510575E-10 -5.072452844877866E-12
i 1.55160912920553E-15 -5.274850732645743E-15 -1.811345425211497E-11 1.554302582076264E-12 -5.072452844877866E-12 1.103601207137132E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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

Alternate Designations
 1975 SJ = 1975 VH2 = 1984 SV4 = 1989 VG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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