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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03962970638438486 1.2853e-07  
a 5.358142412081349 2.9599e-07 au
q 5.145800801524846 9.0887e-07 au
i 5.08220148260418 1.3639e-05 deg
node 144.4660727142367 9.651e-05 deg
peri 240.9674908689619 0.00018617 deg
M 333.8096278418442 0.00016246 deg
tp 2459330.078577047181
(2021-Apr-25.57857705)
0.002054 TDB
period 4530.225344661158
12.40
0.00037538
1.028e-06
d
yr
n .07946624563042053 6.5847e-09 deg/d
Q 5.570484022637853 3.0772e-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 = 4.15279 au 
 Jupiter MOID = .0836295 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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