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266772 (2009 SW172)
Classification: Jupiter Trojan          SPK-ID: 2266772
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 .03243460070510847 7.0238e-08  
a 5.146889514665839 2.1094e-07 au
q 4.979952208384343 4.8703e-07 au
i 6.711521390499313 7.0041e-06 deg
node 238.2672775970024 7.5073e-05 deg
peri 189.1592362718285 0.00018298 deg
M 275.155565307265 0.00017439 deg
tp 2460005.663141207387
(2023-Mar-02.16314121)
0.0021042 TDB
period 4264.967197260896
11.68
0.00026219
7.178e-07
d
yr
n .08440862106306563 5.1891e-09 deg/d
Q 5.313826820947335 2.1778e-07 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      7595 days (20.79 yr)  
   first obs. used      1998-11-17  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55877  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:52  

Additional Information
 Earth MOID = 3.9938 au 
 Jupiter MOID = .0420313 au 
 T_jup = 2.985 
[ 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 13.7   n/a MPO254491  

266772 (2009 SW172)          Discovered 2002-Feb-13 by Sloan Digital Sky Survey at Apache Point
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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