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347505 (1999 CM4)
Classification: Mars-crossing Asteroid          SPK-ID: 2347505
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .314328423680223 3.3085e-08  
a 2.311939617839449 9.4145e-09 au
q 1.585231282120118 7.759e-08 au
i 22.77489458748018 6.8988e-06 deg
node 126.5870824905545 9.7184e-06 deg
peri 90.96440667908632 1.5372e-05 deg
M 346.8471807883502 1.1452e-05 deg
tp 2459047.411520285836
(2020-Jul-16.91152029)
4.0923e-05 TDB
period 1283.994482942695
3.52
7.8429e-06
2.147e-08
d
yr
n .2803750364837564 1.7126e-09 deg/d
Q 3.03864795355878 1.2374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      7748 days (21.21 yr)  
   first obs. used      1999-02-11  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51778  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 22:40:55  

Additional Information
 Earth MOID = .758649 au 
 Jupiter MOID = 2.40587 au 
 T_jup = 3.418 
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Orbital Elements at Epoch 2457615.5 (2016-Aug-15.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3148079657774019 3.3076e-08  
q 1.584073274989541 7.7612e-08 au
tp 2457762.935008955260
(2017-Jan-09.43500896)
3.9399e-05 TDB
node 126.617095067401 9.7193e-06 deg
peri 90.87072676353581 1.536e-05 deg
i 22.77598617121428 6.899e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      7748 days (21.21 yr)  
   first obs. used      1999-02-11  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51778  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 22:40:55  

Additional Information
 Jupiter MOID = 2.40587 au 
 T_jup = 3.418 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.094022835311117E-15 -2.558375466473965E-15 -3.568544234939046E-13 8.217036609906896E-15 -7.276857360752227E-14 -2.898151676520318E-15
q -2.558375466473965E-15 6.023582581826153E-15 8.474981958769754E-13 -1.937215236954742E-14 1.721545236931606E-13 8.369114033793965E-15
tp -3.568544234939046E-13 8.474981958769754E-13 1.552262929112855E-9 -1.469550730462882E-11 4.738090462648427E-10 2.481175829395037E-11
node 8.217036609906896E-15 -1.937215236954742E-14 -1.469550730462882E-11 9.446476377525258E-11 -9.050481019137283E-11 2.753477596463536E-12
peri -7.276857360752227E-14 1.721545236931606E-13 4.738090462648427E-10 -9.050481019137283E-11 2.359158967267897E-10 4.86246429707164E-12
i -2.898151676520318E-15 8.369114033793965E-15 2.481175829395037E-11 2.753477596463536E-12 4.86246429707164E-12 4.759650675408446E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO373038  

347505 (1999 CM4)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20121228/Numbers.arcLast Updated: 2013-01-02

Alternate Designations
 1999 CM4 = 2006 BJ168 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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