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JPL Small-Body Database Browser
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312475 (2008 SW275)
Classification: Jupiter Trojan          SPK-ID: 2312475
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03916309180472059 1.2887e-07  
a 5.356929890690956 2.9675e-07 au
q 5.147135953590374 9.1066e-07 au
i 5.082589725559242 1.364e-05 deg
node 144.4674406789158 9.6504e-05 deg
peri 240.6922845240984 0.00018735 deg
M 302.2395611996054 0.00016291 deg
tp 2459327.108298842858
(2021-Apr-22.60829884)
0.0020699 TDB
period 4528.687679942656
12.40
0.0003763
1.03e-06
d
yr
n .07949322749599691 6.6053e-09 deg/d
Q 5.566723827791537 3.0837e-07 au
  Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      6702 days (18.35 yr)  
   first obs. used      2001-05-20  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6561  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:19  

Additional Information
 Earth MOID = 4.15326 au 
 Jupiter MOID = .0852288 au 
 T_jup = 2.991 
[ 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 14.1   n/a MPO455303  

312475 (2008 SW275)          Discovered 2008-Sep-23 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2008 SW275 = 2007 TT76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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