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101612 (1999 CS8)
Classification: Jupiter Trojan          SPK-ID: 2101612
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09054259075633521 5.8931e-08  
a 5.170839125961877 1.3934e-07 au
q 4.702657955113065 2.9999e-07 au
i 26.26292254713853 6.8985e-06 deg
node 66.43351788608155 1.5469e-05 deg
peri 221.5194417660491 4.8411e-05 deg
M 78.00174173978638 4.5074e-05 deg
tp 2458269.945602204027
(2018-May-31.44560220)
0.00055059 TDB
period 4294.770549151427
11.76
0.0001736
4.753e-07
d
yr
n .08382287153178179 3.3882e-09 deg/d
Q 5.63902029681069 1.5196e-07 au
  Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      10118 days (27.70 yr)  
   first obs. used      1993-04-28  
   last obs. used      2021-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59634  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:33:12  

Additional Information
 Earth MOID = 3.72354 au 
 Jupiter MOID = .444403 au 
 T_jup = 2.787 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456826.5 (2014-Jun-18.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09024738613407676 5.9107e-08  
q 4.713121348223049 2.9662e-07 au
tp 2458252.693363041516
(2018-May-14.19336304)
0.00055191 TDB
node 66.48034206356309 1.547e-05 deg
peri 219.4723544835443 4.8334e-05 deg
i 26.24081819460844 6.897e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      10118 days (27.70 yr)  
   first obs. used      1993-04-28  
   last obs. used      2021-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59634  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:33:12  

Additional Information
 Jupiter MOID = .444403 au 
 T_jup = 2.787 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.493586536543327E-15 -1.594005630623245E-14 -3.991287487319348E-12 -1.47312636929234E-15 -3.614178368849274E-13 6.301149691123694E-15
q -1.594005630623245E-14 8.798272718002307E-14 -3.058793207046035E-12 1.476145430722052E-14 -5.664638539464362E-13 -1.603384018489602E-14
tp -3.991287487319348E-12 -3.058793207046035E-12 3.046081827140942E-7 -3.29202150287694E-11 2.532288542249319E-8 -6.244160324601674E-11
node -1.47312636929234E-15 1.476145430722052E-14 -3.29202150287694E-11 2.393071464429983E-10 -2.171360181684532E-10 -8.180743992182071E-12
peri -3.614178368849274E-13 -5.664638539464362E-13 2.532288542249319E-8 -2.171360181684532E-10 2.336131873810517E-9 2.107510249775145E-12
i 6.301149691123694E-15 -1.603384018489602E-14 -6.244160324601674E-11 -8.180743992182071E-12 2.107510249775145E-12 4.756823357898898E-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 12.4   n/a MPO385427  
diameter diameter 19.776 km 1.182 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.045   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

101612 (1999 CS8)          Discovered 1999-Feb-13 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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