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312341 (2008 CA211)
Classification: Main-belt Asteroid          SPK-ID: 2312341
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07154976754593093 5.7557e-08  
a 2.782995900320568 3.0367e-08 au
q 2.583873190571353 1.563e-07 au
i 3.473346188160165 6.3624e-06 deg
node 308.5609428731634 7.6446e-05 deg
peri 23.19810604932009 8.5195e-05 deg
M 157.6966729556337 3.4677e-05 deg
tp 2458653.673640012520
(2019-Jun-19.17364001)
0.00016427 TDB
period 1695.771284095055
4.64
2.7756e-05
7.599e-08
d
yr
n .2122927799146648 3.4747e-09 deg/d
Q 2.982118610069783 3.254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      8375 days (22.93 yr)  
   first obs. used      1998-01-02  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53312  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:29:35  

Additional Information
 Earth MOID = 1.57265 au 
 Jupiter MOID = 2.27137 au 
 T_jup = 3.326 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457347.5 (2015-Nov-21.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07384592500110325 5.7878e-08  
q 2.575884883575686 1.5755e-07 au
tp 2456954.871448654433
(2014-Oct-24.37144865)
0.00016182 TDB
node 308.7774352795905 7.6431e-05 deg
peri 22.17656475085486 8.4497e-05 deg
i 3.474519519218487 6.3652e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      8375 days (22.93 yr)  
   first obs. used      1998-01-02  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53312  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:29:35  

Additional Information
 Jupiter MOID = 2.27137 au 
 T_jup = 3.326 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.34986095148314E-15 -8.980829309183274E-15 -1.740442562799582E-12 7.441813877114605E-15 -3.987986226625635E-13 -1.154468344395308E-15
q -8.980829309183274E-15 2.482279826760263E-14 3.65190119047806E-12 -1.870184895438361E-14 8.781537745072093E-13 4.292623417929324E-15
tp -1.740442562799582E-12 3.65190119047806E-12 2.618724414157779E-8 -1.832779908806328E-11 5.844097159102103E-9 -2.340739977684153E-12
node 7.441813877114605E-15 -1.870184895438361E-14 -1.832779908806328E-11 5.841718573605037E-9 -5.834651332883477E-9 6.401159877794302E-11
peri -3.987986226625635E-13 8.781537745072093E-13 5.844097159102103E-9 -5.834651332883477E-9 7.139693233885518E-9 -6.442004415788312E-11
i -1.154468344395308E-15 4.292623417929324E-15 -2.340739977684153E-12 6.401159877794302E-11 -6.442004415788312E-11 4.051631594374341E-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 16.71   n/a MPCxxxxx  
diameter diameter 2.539 km 0.413 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312341 (2008 CA211)          Discovered 2008-Feb-02 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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