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305449 (2008 CL209)
Classification: Main-belt Asteroid          SPK-ID: 2305449
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05462130650610419 4.872e-08  
a 2.966909012094433 3.3399e-08 au
q 2.8048525655691 1.3567e-07 au
i 4.145462999796226 5.6603e-06 deg
node 269.6669722308433 6.8221e-05 deg
peri 271.7522609721954 8.6696e-05 deg
M 115.0550077968329 5.294e-05 deg
tp 2458403.934967202327
(2018-Oct-12.43496720)
0.00027282 TDB
period 1866.615073256064
5.11
3.152e-05
8.63e-08
d
yr
n .1928624734461334 3.2567e-09 deg/d
Q 3.128965458619765 3.5224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      266  
   data-arc span      6825 days (18.69 yr)  
   first obs. used      2001-11-21  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58193  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 19:50:30  

Additional Information
 Earth MOID = 1.81117 au 
 Jupiter MOID = 1.86498 au 
 T_jup = 3.258 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457641.5 (2016-Sep-10.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05247027536741641 4.866e-08  
q 2.809246575645668 1.3465e-07 au
tp 2458396.613357358444
(2018-Oct-05.11335736)
0.00028526 TDB
node 269.6949129165326 6.8244e-05 deg
peri 270.3160342039872 8.8243e-05 deg
i 4.144835476806759 5.661e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      266  
   data-arc span      6825 days (18.69 yr)  
   first obs. used      2001-11-21  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58193  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 19:50:30  

Additional Information
 Jupiter MOID = 1.86498 au 
 T_jup = 3.258 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.367836817255818E-15 -6.401457041515283E-15 1.094030250608317E-12 -3.787743168450652E-15 1.435951010009328E-13 -2.88051196087853E-16
q -6.401457041515283E-15 1.812950108625559E-14 -1.609005752137217E-12 1.346113870240878E-14 -1.939706072875315E-13 1.178997142300876E-15
tp 1.094030250608317E-12 -1.609005752137217E-12 8.137372497452288E-8 -6.271764536701654E-11 1.596440418697947E-8 9.162557952055008E-13
node -3.787743168450652E-15 1.346113870240878E-14 -6.271764536701654E-11 4.657294053977074E-9 -4.657328279759117E-9 -1.180329131192595E-11
peri 1.435951010009328E-13 -1.939706072875315E-13 1.596440418697947E-8 -4.657328279759117E-9 7.786881827159305E-9 1.193845888265664E-11
i -2.88051196087853E-16 1.178997142300876E-15 9.162557952055008E-13 -1.180329131192595E-11 1.193845888265664E-11 3.204739620757085E-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 15.8   n/a MPO437356  

305449 (2008 CL209)          Discovered 2006-Oct-27 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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