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294739 (2008 CM)
Classification: Apollo [NEO, PHA]          SPK-ID: 2294739
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 289 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4081239355363477 1.5943e-08  
a 1.565854303834144 4.9134e-09 au
q .9267916828768252 2.5536e-08 au
i 36.01470717586881 3.6493e-06 deg
node 279.5622987925694 5.7739e-07 deg
peri 130.6791210354371 4.6278e-06 deg
M 112.0872112612741 4.562e-06 deg
tp 2458777.667252243873
(2019-Oct-21.16725224)
8.087e-06 TDB
period 715.6908293954622
1.96
3.3686e-06
9.223e-09
d
yr
n .5030104972898547 2.3676e-09 deg/d
Q 2.204916924791463 6.9187e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1391  
   # delay obs. used      7  
   # Doppler obs. used      1  
   data-arc span      4353 days (11.92 yr)  
   first obs. used      2008-02-02  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36452  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-04 05:43:33  

Additional Information
 Earth MOID = .0439887 au 
 Jupiter MOID = 3.31723 au 
 T_jup = 4.133 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457540.5 (2016-Jun-01.0) TDB
Reference: JPL 289 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4082545583528531 1.5947e-08  
q .9268258752353233 2.5559e-08 au
tp 2457345.841712198625
(2015-Nov-19.34171220)
3.0764e-06 TDB
node 279.5949269548389 5.7949e-07 deg
peri 130.638671119018 4.6273e-06 deg
i 35.99942092629588 3.6488e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1391  
   # delay obs. used      7  
   # Doppler obs. used      1  
   data-arc span      4353 days (11.92 yr)  
   first obs. used      2008-02-02  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36452  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-04 05:43:33  

Additional Information
 Jupiter MOID = 3.31723 au 
 T_jup = 4.133 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.543004875832968E-16 -4.049486675143576E-16 -1.105131967881825E-14 7.344878450561949E-15 -3.077016141520111E-14 -7.734931756510202E-16
q -4.049486675143576E-16 6.53249666699823E-16 1.945906142943348E-14 -1.169104519392099E-14 5.173280276822512E-14 1.135127205934916E-15
tp -1.105131967881825E-14 1.945906142943348E-14 9.464007268363817E-12 4.558646484421514E-13 1.391845458329459E-11 1.200559232756675E-12
node 7.344878450561949E-15 -1.169104519392099E-14 4.558646484421514E-13 3.358089636144965E-13 1.345035677926048E-13 -6.796254587774847E-13
peri -3.077016141520111E-14 5.173280276822512E-14 1.391845458329459E-11 1.345035677926048E-13 2.141231442127573E-11 2.545535575888514E-12
i -7.734931756510202E-16 1.135127205934916E-15 1.200559232756675E-12 -6.796254587774847E-13 2.545535575888514E-12 1.331390072926643E-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 17.1   n/a MPO437318  
diameter diameter 0.740 km 0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 3.05785 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 157-168.]
[Benishek, V. (2016) Minor Planet Bull. 43, 186-188.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 143-154.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.425   0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

294739 (2008 CM)          Discovered 2008-Feb-02 by CSS at Catalina
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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