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210P/Christensen
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2455229.5 (2010-Feb-02.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8316968548421141 3.3258e-07  
a 3.1755056536032 6.9627e-08 au
q .5344475889680668 1.0674e-06 au
i 10.21716794655259 9.2493e-06 deg
node 93.87242261853319 0.00012707 deg
peri 345.766023620465 0.00014534 deg
M 71.24072511607861 4.6121e-06 deg
tp 2454820.480896237200
(2008-Dec-19.98089624)
1.9692e-05 TDB
period 2066.891895256345
5.66
6.7979e-05
1.861e-07
d
yr
n .1741745665683939 5.7285e-09 deg/d
Q 5.816563718238333 1.2754e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -2.05617514420794E-10 1.128E-10
A2 [EST] 5.655361521862536E-11 2.551E-13
A3 [EST] -1.14374450399871E-10 7.201E-11
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      6256 days (17.13 yr)  
   first obs. used      2003-05-26  
   last obs. used      2020-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .80969  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-20 08:42:51  

Additional Information
 Earth MOID = .170391 au 
 Jupiter MOID = .0177924 au 
 T_jup = 2.492 
[ hide covariance matrix ]
Orbit Covariance (9×9)
  e q tp node peri i A1 A2 A3
e 1.106104732167523E-13 -3.549977980426521E-13 -2.529568264435579E-12 -1.965121379452454E-12 -2.473173860020963E-11 1.457627539904234E-12 2.358955483617623E-17 7.91171774655368E-20 4.434230092593357E-19
q -3.549977980426521E-13 1.139354463989845E-12 8.09034274616945E-12 6.309859284094872E-12 7.93707308361939E-11 -4.675142006616542E-12 -7.593853847275705E-17 -2.537527772333427E-19 -1.456950307708109E-18
tp -2.529568264435579E-12 8.09034274616945E-12 3.877653342615637E-10 1.131786094787697E-10 5.828867258070247E-10 -6.003771645612954E-11 4.642043917823827E-16 -3.156916988081039E-18 1.249559956558793E-16
node -1.965121379452454E-12 6.309859284094872E-12 1.131786094787697E-10 1.614719885542355E-8 -1.535222308878904E-8 -4.138060310051382E-10 2.602416556449602E-16 -2.209782068237614E-18 4.176108550007095E-15
peri -2.473173860020963E-11 7.93707308361939E-11 5.828867258070247E-10 -1.535222308878904E-8 2.112281455363605E-8 5.804404357450571E-11 -5.693106589215795E-15 -1.731844276069106E-17 -4.176742567558962E-15
i 1.457627539904234E-12 -4.675142006616542E-12 -6.003771645612954E-11 -4.138060310051382E-10 5.804404357450571E-11 8.555002507603059E-11 2.097605572448693E-16 1.152145215864777E-18 -2.23576300747312E-16
A1 2.358955483617623E-17 -7.593853847275705E-17 4.642043917823827E-16 2.602416556449602E-16 -5.693106589215795E-15 2.097605572448693E-16 1.27249996296382E-20 1.007488374413869E-23 1.106064062831363E-21
A2 7.91171774655368E-20 -2.537527772333427E-19 -3.156916988081039E-18 -2.209782068237614E-18 -1.731844276069106E-17 1.152145215864777E-18 1.007488374413869E-23 6.507816825434835E-26 -7.000349248691599E-25
A3 4.434230092593357E-19 -1.456950307708109E-18 1.249559956558793E-16 4.176108550007095E-15 -4.176742567558962E-15 -2.23576300747312E-16 1.106064062831363E-21 -7.000349248691599E-25 5.185113001808363E-21

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 14.9   0.9 51 2 parameter fit from 434 observations, autocmod 2.8
comet total magnitude slope K1 10.   n/a 51 autocmod 2.8
comet nuclear magnitude M2 17.8   0.8 51 from 183 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 51 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 51 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2009.0   210P/2008 X4       
 2003.3   210P/2003 K2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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