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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 290 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4081239355029284 1.5944e-08  
a 1.565854304213093 4.9373e-09 au
q .9267916831534458 2.5533e-08 au
i 36.014707070805 3.6508e-06 deg
node 279.5622987839249 5.7736e-07 deg
peri 130.6791209114498 4.6257e-06 deg
M 112.0872110029241 4.5788e-06 deg
tp 2458777.667252676590
(2019-Oct-21.16725268)
8.1149e-06 TDB
period 715.6908296552664
1.96
3.385e-06
9.268e-09
d
yr
n .503010497107256 2.3791e-09 deg/d
Q 2.20491692527274 6.9524e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1397  
   # 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      .34919  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-09 06:13:33  

Additional Information
 Earth MOID = .0439887 au 
 Jupiter MOID = 3.31723 au 
 T_jup = 4.133 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457536.5 (2016-May-28.0) TDB
Reference: JPL 290 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4082535135724576 1.5948e-08  
q .9268282426787009 2.5556e-08 au
tp 2457345.841548656393
(2015-Nov-19.34154866)
3.0753e-06 TDB
node 279.5951938162747 5.7948e-07 deg
peri 130.6385591114396 4.6253e-06 deg
i 35.99942692686538 3.6503e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1397  
   # 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      .34919  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-09 06:13:33  

Additional Information
 Jupiter MOID = 3.31723 au 
 T_jup = 4.133 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.543322497761001E-16 -4.049059215496884E-16 -1.102289702097023E-14 7.343558595294194E-15 -3.072722770581945E-14 -7.167205615334091E-16
q -4.049059215496884E-16 6.531216376793097E-16 1.941811245748858E-14 -1.168802073220249E-14 5.166710303071607E-14 1.056001682948496E-15
tp -1.102289702097023E-14 1.941811245748858E-14 9.457456479808986E-12 4.563635128337924E-13 1.390730614081304E-11 1.194492071539231E-12
node 7.343558595294194E-15 -1.168802073220249E-14 4.563635128337924E-13 3.35792094230095E-13 1.353207318617676E-13 -6.79402724782111E-13
peri -3.072722770581945E-14 5.166710303071607E-14 1.390730614081304E-11 1.353207318617676E-13 2.139351917042472E-11 2.53434218839536E-12
i -7.167205615334091E-16 1.056001682948496E-15 1.194492071539231E-12 -6.79402724782111E-13 2.53434218839536E-12 1.332471956713415E-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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