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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 313 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4079514118078721 1.5884e-08  
a 1.566056308838492 4.5976e-09 au
q .927181426677204 2.5502e-08 au
i 36.00981105864969 3.6066e-06 deg
node 279.5625081094846 5.7611e-07 deg
peri 130.6516403163054 4.6146e-06 deg
M 311.3014958932426 5.1723e-06 deg
tp 2459493.332826135414
(2021-Oct-05.83282614)
1.0694e-05 TDB
period 715.8293267556818
1.96
3.1523e-06
8.631e-09
d
yr
n .5029131757308831 2.2147e-09 deg/d
Q 2.20493119099978 6.4732e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1500  
   # delay obs. used      7  
   # Doppler obs. used      1  
   data-arc span      4942 days (13.53 yr)  
   first obs. used      2008-02-02  
   last obs. used      2021-08-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35439  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-15 06:04:21  

Additional Information
 Earth MOID = .0446291 au 
 Jupiter MOID = 3.31869 au 
 T_jup = 4.133 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457648.5 (2016-Sep-17.0) TDB
Reference: JPL 313 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4082972247499279 1.5874e-08  
q .9267205087713987 2.5499e-08 au
tp 2457345.846880019839
(2015-Nov-19.34688002)
3.0669e-06 TDB
node 279.5885212541798 5.7781e-07 deg
peri 130.639054191066 4.6111e-06 deg
i 36.00031440767945 3.6067e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1500  
   # delay obs. used      7  
   # Doppler obs. used      1  
   data-arc span      4942 days (13.53 yr)  
   first obs. used      2008-02-02  
   last obs. used      2021-08-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35439  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-15 06:04:21  

Additional Information
 Jupiter MOID = 3.31869 au 
 T_jup = 4.133 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.519851093792543E-16 -4.025068192996079E-16 -1.082848225229606E-14 7.304085946453615E-15 -3.03402644008469E-14 -6.489423829977895E-16
q -4.025068192996079E-16 6.501864416108587E-16 1.910782098968992E-14 -1.16425338270714E-14 5.110909156479137E-14 9.566576000838582E-16
tp -1.082848225229606E-14 1.910782098968992E-14 9.40584377147214E-12 4.628554438597745E-13 1.38263544109257E-11 1.163709591465416E-12
node 7.304085946453615E-15 -1.16425338270714E-14 4.628554438597745E-13 3.33864162177559E-13 1.474800838960789E-13 -6.555573412065406E-13
peri -3.03402644008469E-14 5.110909156479137E-14 1.38263544109257E-11 1.474800838960789E-13 2.12625374556364E-11 2.479732822383291E-12
i -6.489423829977895E-16 9.566576000838582E-16 1.163709591465416E-12 -6.555573412065406E-13 2.479732822383291E-12 1.30080081574605E-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 17.09   n/a MPCxxxxx  
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. 2020-October); 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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