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295618 (2008 SL213)
Classification: Jupiter Trojan          SPK-ID: 2295618
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 .1222831726868867 8.4572e-08  
a 5.204327465222567 1.9865e-07 au
q 4.567925791073649 5.6729e-07 au
i 7.625556159905666 9.4098e-06 deg
node 181.9023086015444 4.9817e-05 deg
peri 232.1591572615246 6.8274e-05 deg
M 315.8535110258534 5.4057e-05 deg
tp 2459532.288594212045
(2021-Nov-13.78859421)
0.00066698 TDB
period 4336.559902384331
11.87
0.00024829
6.798e-07
d
yr
n .08301511061845693 4.7531e-09 deg/d
Q 5.840729139371486 2.2294e-07 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      8418 days (23.05 yr)  
   first obs. used      1996-09-08  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53443  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:01:44  

Additional Information
 Earth MOID = 3.58586 au 
 Jupiter MOID = .141292 au 
 T_jup = 2.967 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457134.5 (2015-Apr-22.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222204493621715 8.4116e-08  
q 4.561599958414658 5.6346e-07 au
tp 2455209.197483809228
(2010-Jan-12.69748381)
0.00057471 TDB
node 181.9581159110308 4.9812e-05 deg
peri 232.5595799301508 6.8411e-05 deg
i 7.628515216362953 9.413e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      8418 days (23.05 yr)  
   first obs. used      1996-09-08  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53443  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:01:44  

Additional Information
 Jupiter MOID = .141292 au 
 T_jup = 2.967 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.075525673599582E-15 -4.600715854672804E-14 -2.061695608938575E-11 -1.603405433933E-14 -2.026837757781703E-12 1.052735144013528E-16
q -4.600715854672804E-14 3.174884322200442E-13 1.262531025253897E-10 1.215071778317152E-13 1.346921789070316E-11 6.411086859171178E-15
tp -2.061695608938575E-11 1.262531025253897E-10 3.302912958200915E-7 1.660500896916154E-11 2.663398655932742E-8 1.616261871529315E-11
node -1.603405433933E-14 1.215071778317152E-13 1.660500896916154E-11 2.481253961740786E-9 -2.455794700181127E-9 -6.604254734244192E-11
peri -2.026837757781703E-12 1.346921789070316E-11 2.663398655932742E-8 -2.455794700181127E-9 4.680074032264935E-9 6.702863039967468E-11
i 1.052735144013528E-16 6.411086859171178E-15 1.616261871529315E-11 -6.604254734244192E-11 6.702863039967468E-11 8.86043295622754E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5   n/a MPO455185  
diameter diameter 8.901 km 1.068 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.089   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

295618 (2008 SL213)          Discovered 2008-Sep-29 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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