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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 2455214.5 (2010-Jan-18.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8316888631172283 3.3954e-07  
a 3.175554584178205 7.214e-08 au
q .5344812022963309 1.0899e-06 au
i 10.21698697699726 9.2619e-06 deg
node 93.87317804502089 0.00012742 deg
peri 345.7663911557208 0.00014682 deg
M 68.62681837670571 4.5643e-06 deg
tp 2454820.479185622533
(2008-Dec-19.97918562)
1.9793e-05 TDB
period 2066.93966777332
5.66
7.0433e-05
1.928e-07
d
yr
n .1741705409272163 5.935e-09 deg/d
Q 5.816627966060079 1.3214e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -2.089103438679881E-10 1.208E-10
A2 [EST] 5.654979435486979E-11 2.564E-13
A3 [EST] -1.179327438827066E-10 7.258E-11
  Orbit Determination Parameters
   # obs. used (total)      713  
   data-arc span      6238 days (17.08 yr)  
   first obs. used      2003-05-26  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .81179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-26 16:18:06  

Additional Information
 Earth MOID = .170458 au 
 Jupiter MOID = .017752 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 14.9   0.9 50 2 parameter fit from 430 observations, autocmod 2.8
comet total magnitude slope K1 10.   n/a 50 autocmod 2.8
comet nuclear magnitude M2 17.8   0.8 50 from 183 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 50 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 50 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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