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30793 (1988 SJ3)
Classification: Jupiter Trojan          SPK-ID: 2030793
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06005736230396684 7.4842e-08  
a 5.236182076944284 1.401e-07 au
q 4.921710792859703 4.1185e-07 au
i 20.99355883571344 6.5281e-06 deg
node 88.8318898042798 1.9459e-05 deg
peri 292.5145910823484 5.8827e-05 deg
M 215.7629899204637 6.0796e-05 deg
tp 2460953.955493485164
(2025-Oct-05.45549349)
0.00078781 TDB
period 4376.435543877216
11.98
0.00017564
4.809e-07
d
yr
n .08225872319852907 3.3013e-09 deg/d
Q 5.550653361028865 1.4851e-07 au
  Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      11873 days (32.51 yr)  
   first obs. used      1988-09-16  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:33  

Additional Information
 Earth MOID = 3.98888 au 
 Jupiter MOID = .0359152 au 
 T_jup = 2.863 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.18   n/a E2021B10  
diameter diameter 19.257 km 1.449 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.091   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

30793 (1988 SJ3)          Discovered 1988-Sep-16 by Bus, S. J. at Cerro Tololo
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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