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305725 (2009 CD33)
Classification: Main-belt Asteroid          SPK-ID: 2305725
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 .1673242402858019 7.8098e-08  
a 2.46014668487627 2.0067e-08 au
q 2.048504509837714 1.8841e-07 au
i 2.189119133648971 8.9507e-06 deg
node 70.32573057837544 0.00017566 deg
peri 4.335748371475505 0.00018328 deg
M 38.07386108319515 4.0347e-05 deg
tp 2458851.438890056164
(2020-Jan-02.93889006)
0.00015905 TDB
period 1409.418379253
3.86
1.7244e-05
4.721e-08
d
yr
n .2554245107764254 3.1251e-09 deg/d
Q 2.871788859914826 2.3424e-08 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      6882 days (18.84 yr)  
   first obs. used      2001-01-30  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64485  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:49:21  

Additional Information
 Earth MOID = 1.06355 au 
 Jupiter MOID = 2.38715 au 
 T_jup = 3.470 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457409.5 (2016-Jan-22.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1655382677812665 7.7778e-08  
q 2.05305983218637 1.8724e-07 au
tp 2457440.788331758489
(2016-Feb-22.28833176)
0.00017419 TDB
node 70.34389071057907 0.00017569 deg
peri 4.131918247554147 0.00018357 deg
i 2.189068366992457 8.9459e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      6882 days (18.84 yr)  
   first obs. used      2001-01-30  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64485  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:49:21  

Additional Information
 Jupiter MOID = 2.38715 au 
 T_jup = 3.470 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.049377702437538E-15 -1.450857138696855E-14 -7.142219208764121E-12 -1.255929562355431E-13 -2.002778413366557E-12 -2.436472340379691E-15
q -1.450857138696855E-14 3.505717304898121E-14 1.560427864013778E-11 2.876898303709299E-13 4.331704343670171E-12 5.964538679090653E-15
tp -7.142219208764121E-12 1.560427864013778E-11 3.034167459756827E-8 2.940602577852098E-10 9.300159009517221E-9 5.074131918470023E-12
node -1.255929562355431E-13 2.876898303709299E-13 2.940602577852098E-10 3.086827401995258E-8 -3.075374061143697E-8 -8.579873406837752E-10
peri -2.002778413366557E-12 4.331704343670171E-12 9.300159009517221E-9 -3.075374061143697E-8 3.369774750382403E-8 8.589566709856302E-10
i -2.436472340379691E-15 5.964538679090653E-15 5.074131918470023E-12 -8.579873406837752E-10 8.589566709856302E-10 8.002948107111325E-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 17.9   n/a MPO503303  

305725 (2009 CD33)          Discovered 2009-Feb-01 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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