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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05292806156400453 5.3277e-08  
a 2.964864944108816 3.695e-08 au
q 2.807940389818065 1.5687e-07 au
i 4.146430915106398 6.5374e-06 deg
node 269.6813952134181 7.9083e-05 deg
peri 271.2262676875806 0.00011157 deg
M 38.56204781553335 7.4023e-05 deg
tp 2458400.760762525179
(2018-Oct-09.26076253)
0.0003841 TDB
period 1864.686383744658
5.11
3.4858e-05
9.544e-08
d
yr
n .1930619556930796 3.609e-09 deg/d
Q 3.121789498399565 3.8905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6409 days (17.55 yr)  
   first obs. used      2001-11-21  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59204  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:44  

Additional Information
 Earth MOID = 1.81479 au 
 Jupiter MOID = 1.87337 au 
 T_jup = 3.259 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457296.5 (2015-Oct-01.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05238130700689668 5.288e-08  
q 2.809764468563678 1.5538e-07 au
tp 2456530.620332741132
(2013-Aug-26.12033274)
0.0003978 TDB
node 269.7139480957767 7.9135e-05 deg
peri 270.0835109151655 0.00011241 deg
i 4.144794178346822 6.5351e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6409 days (17.55 yr)  
   first obs. used      2001-11-21  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59204  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:44  

Additional Information
 Jupiter MOID = 1.87337 au 
 T_jup = 3.259 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.796270615670387E-15 -8.006823926352029E-15 6.056978058137206E-12 -3.96284853889139E-15 1.265622567705769E-12 -7.966104805635483E-16
q -8.006823926352029E-15 2.414233566069118E-14 -2.158679719486184E-11 2.177280817010892E-14 -4.38954927541114E-12 2.640964568431162E-15
tp 6.056978058137206E-12 -2.158679719486184E-11 1.582436418914274E-7 -2.173866577390449E-10 3.178294124368515E-8 5.619464428808817E-12
node -3.96284853889139E-15 2.177280817010892E-14 -2.173866577390449E-10 6.262421502678087E-9 -6.288370819095632E-9 -1.294857670325673E-10
peri 1.265622567705769E-12 -4.38954927541114E-12 3.178294124368515E-8 -6.288370819095632E-9 1.263686280018106E-8 1.302842168452858E-10
i -7.966104805635483E-16 2.640964568431162E-15 5.619464428808817E-12 -1.294857670325673E-10 1.302842168452858E-10 4.270803105396835E-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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