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161867 (2007 CD)
Classification: Main-belt Asteroid          SPK-ID: 2161867
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718022722398588 5.3844e-08  
a 2.605203251969812 1.7529e-08 au
q 2.157623413634729 1.4535e-07 au
i 12.78672134970754 8.1862e-06 deg
node 9.990376181684596 1.5927e-05 deg
peri 48.52381045052279 3.1541e-05 deg
M 97.58721439583336 2.4967e-05 deg
tp 2458584.157002269722
(2019-Apr-10.65700227)
0.00010465 TDB
period 1535.892587065173
4.21
1.5501e-05
4.244e-08
d
yr
n .2343913910593828 2.3656e-09 deg/d
Q 3.052783090304895 2.054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      580  
   data-arc span      8205 days (22.46 yr)  
   first obs. used      1997-11-03  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53111  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:43:56  

Additional Information
 Earth MOID = 1.18997 au 
 Jupiter MOID = 2.43771 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457342.5 (2015-Nov-16.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1699440100859847 5.3203e-08  
q 2.164177175364359 1.4311e-07 au
tp 2457048.043808786925
(2015-Jan-25.54380879)
0.00010138 TDB
node 10.0160857860763 1.5928e-05 deg
peri 48.73096004303315 3.1883e-05 deg
i 12.78346327204132 8.1832e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      580  
   data-arc span      8205 days (22.46 yr)  
   first obs. used      1997-11-03  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53111  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:43:56  

Additional Information
 Jupiter MOID = 2.43771 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.830575237896172E-15 -7.578041457340761E-15 -4.018483858634875E-12 2.394491188148209E-14 -1.095808682929527E-12 -1.495622863495371E-14
q -7.578041457340761E-15 2.047972834827053E-14 1.084520014967221E-11 -6.560038375462667E-14 2.966690662275434E-12 3.992319561348009E-14
tp -4.018483858634875E-12 1.084520014967221E-11 1.027822734709316E-8 -4.781526981440839E-11 2.80511818745969E-9 2.314336296516152E-11
node 2.394491188148209E-14 -6.560038375462667E-14 -4.781526981440839E-11 2.536861020698571E-10 -2.596324792764406E-10 -1.752622344822731E-11
peri -1.095808682929527E-12 2.966690662275434E-12 2.80511818745969E-9 -2.596324792764406E-10 1.016526712351632E-9 2.31705415949972E-11
i -1.495622863495371E-14 3.992319561348009E-14 2.314336296516152E-11 -1.752622344822731E-11 2.31705415949972E-11 6.696548712333633E-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 15.9   n/a MPO459741  

161867 (2007 CD)          Discovered 2007-Feb-05 by Lowe, A. at Mayhill
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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