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295621 (2008 SO223)
Classification: Jupiter Trojan          SPK-ID: 2295621
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03873728232811065 1.2067e-07  
a 5.249097592440922 2.4266e-07 au
q 5.045761817034732 8.0558e-07 au
i 4.808941321192843 1.1315e-05 deg
node 292.9315516495444 0.0001404 deg
peri 101.4313615024015 0.0002226 deg
M 326.9980421451855 0.00017629 deg
tp 2459403.182357449568
(2021-Jul-07.68235745)
0.0021628 TDB
period 4392.637834385222
12.03
0.0003046
8.339e-07
d
yr
n .08195531103929135 5.6831e-09 deg/d
Q 5.452433367847112 2.5206e-07 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      7981 days (21.85 yr)  
   first obs. used      1997-11-23  
   last obs. used      2019-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56286  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:01:44  

Additional Information
 Earth MOID = 4.05627 au 
 Jupiter MOID = .0372155 au 
 T_jup = 2.991 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457109.5 (2015-Mar-28.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03800381738471556 1.1846e-07  
q 5.044227990390197 7.905e-07 au
tp 2455035.249005288236
(2009-Jul-22.74900529)
0.0021306 TDB
node 292.9514543623272 0.00014049 deg
peri 102.850711452512 0.00022777 deg
i 4.808193035448808 1.1313e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      7981 days (21.85 yr)  
   first obs. used      1997-11-23  
   last obs. used      2019-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56286  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:01:44  

Additional Information
 Jupiter MOID = .0372155 au 
 T_jup = 2.991 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.403327432524629E-14 -9.123730113201429E-14 -1.509844678452752E-10 2.205165315582614E-14 -1.331389121024847E-11 -1.25672062730221E-15
q -9.123730113201429E-14 6.248844038413497E-13 9.388621283989299E-10 -1.335339133505468E-13 8.463908886911773E-11 1.418448032674037E-14
tp -1.509844678452752E-10 9.388621283989299E-10 4.539299231768015E-6 -4.326864617746333E-10 3.817915284063059E-7 -2.748147586637512E-12
node 2.205165315582614E-14 -1.335339133505468E-13 -4.326864617746333E-10 1.973693576965988E-8 -1.970420741362133E-8 9.085082854574702E-10
peri -1.331389121024847E-11 8.463908886911773E-11 3.817915284063059E-7 -1.970420741362133E-8 5.187796982268873E-8 -9.051827467117873E-10
i -1.25672062730221E-15 1.418448032674037E-14 -2.748147586637512E-12 9.085082854574702E-10 -9.051827467117873E-10 1.279921052379778E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO418564  

295621 (2008 SO223)          Discovered 2008-Sep-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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