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JPL Small-Body Database Browser
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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 2454847.5 (2009-Jan-16.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8316564312750283 5.9252e-07  
a 3.177239544524498 1.2005e-05 au
q .5348678436193576 9.3926e-07 au
i 10.2152468491116 9.1526e-06 deg
node 93.88442977994525 0.00012215 deg
peri 345.7768324779677 0.00013543 deg
M 4.703866499222339 2.9343e-05 deg
tp 2454820.471256776756
(2008-Dec-19.97125678)
2.3697e-05 TDB
period 2068.584974079621
5.66
0.011724
3.21e-05
d
yr
n .1740320095673978 9.8639e-07 deg/d
Q 5.819611245429638 2.199e-05 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -3.516467037126964E-10 2.317E-10
A2 [EST] 5.765404665388565E-11 2.433E-13
A3 [EST] -3.491603788189384E-10 9.274E-11
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      6204 days (16.99 yr)  
   first obs. used      2003-05-26  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .85418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-26 12:44:58  

Additional Information
 Earth MOID = .170346 au 
 Jupiter MOID = .0167553 au 
 T_jup = 2.492 
[ show covariance matrix ]

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 15.0   0.9 47 2 parameter fit from 346 observations, autocmod 2.8
comet total magnitude slope K1 10.25   n/a 47 autocmod 2.8
comet nuclear magnitude M2 17.9   0.8 47 from 175 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 47 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 47 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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