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266808 (2009 SN355)
Classification: Jupiter Trojan          SPK-ID: 2266808
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09426413726308529 5.9519e-08  
a 5.130582931558889 1.7924e-07 au
q 4.64695295785878 4.2536e-07 au
i 6.874587950618356 6.647e-06 deg
node 209.4785622415845 5.9022e-05 deg
peri 221.6201217671116 7.6384e-05 deg
M 275.1104487874947 5.3079e-05 deg
tp 2460001.421992338450
(2023-Feb-25.92199234)
0.00065772 TDB
period 4244.714597911087
11.62
0.00022244
6.09e-07
d
yr
n .08481135579225127 4.4444e-09 deg/d
Q 5.614212905258999 1.9614e-07 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      8428 days (23.07 yr)  
   first obs. used      1997-10-10  
   last obs. used      2020-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54929  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:54:25  

Additional Information
 Earth MOID = 3.66514 au 
 Jupiter MOID = .079021 au 
 T_jup = 2.977 
[ 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 13.6   n/a MPO433732  

266808 (2009 SN355)          Discovered 1998-Oct-12 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 SN355 = 1998 TB10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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