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305384 (2008 CO39)
Classification: Main-belt Asteroid          SPK-ID: 2305384
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08388849029198696 6.6595e-08  
a 2.9792143435467 2.9813e-08 au
q 2.729292550010335 1.9937e-07 au
i 1.403627093749818 7.2029e-06 deg
node 194.4703568800429 0.00022306 deg
peri 148.3852050723283 0.00022674 deg
M 298.9389722137712 4.3513e-05 deg
tp 2459319.075711389489
(2021-Apr-14.57571139)
0.00022833 TDB
period 1878.239857044818
5.14
2.8194e-05
7.719e-08
d
yr
n .1916688109081107 2.8771e-09 deg/d
Q 3.229136137083066 3.2314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      8601 days (23.55 yr)  
   first obs. used      1995-09-18  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53647  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:09:40  

Additional Information
 Earth MOID = 1.72133 au 
 Jupiter MOID = 2.10491 au 
 T_jup = 3.254 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457049.5 (2015-Jan-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0840162837232182 6.7063e-08  
q 2.726038108239619 1.9992e-07 au
tp 2457451.990056319634
(2016-Mar-04.49005632)
0.00021828 TDB
node 194.5387186651105 0.00022295 deg
peri 150.0302381177382 0.00022653 deg
i 1.404129041903514 7.209e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      8601 days (23.55 yr)  
   first obs. used      1995-09-18  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53647  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:09:40  

Additional Information
 Jupiter MOID = 2.10491 au 
 T_jup = 3.254 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.497508964477624E-15 -1.327873502925536E-14 6.994120338682692E-12 3.43320449321972E-14 1.115195209975651E-12 -1.558694866299623E-16
q -1.327873502925536E-14 3.996789818260874E-14 -1.989597337811043E-11 -9.908890543866822E-14 -3.182464120684823E-12 7.136219134564419E-16
tp 6.994120338682692E-12 -1.989597337811043E-11 4.764746968948866E-8 9.231455715974923E-11 8.762000908492645E-9 -2.582697527277952E-12
node 3.43320449321972E-14 -9.908890543866822E-14 9.231455715974923E-11 4.9706991284465E-8 -4.967555536642921E-8 3.950310405337444E-10
peri 1.115195209975651E-12 -3.182464120684823E-12 8.762000908492645E-9 -4.967555536642921E-8 5.131552268743772E-8 -3.954020538106342E-10
i -1.558694866299623E-16 7.136219134564419E-16 -2.582697527277952E-12 3.950310405337444E-10 -3.954020538106342E-10 5.197037044907673E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO433967  

305384 (2008 CO39)          Discovered 1995-Sep-18 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 CO39 = 1995 SJ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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