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164P/Christensen
Classification: Jupiter-family Comet          SPK-ID: 1000535
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 2456968.5 (2014-Nov-07.0) TDB
Reference: JPL K182/7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .540332492804741 1.7052e-07  
a 3.657489779642913 6.2282e-08 au
q 1.681229209600595 6.2488e-07 au
i 16.26213070048014 1.8338e-05 deg
node 88.30717883567652 0.00010365 deg
peri 326.0034128042065 0.00012158 deg
M 176.7038905320413 3.5627e-05 deg
tp 2455714.444608926531
(2011-Jun-01.94460893)
0.00025279 TDB
period 2554.895307778108
6.99
6.526e-05
1.787e-07
d
yr
n .1409059693773041 3.5992e-09 deg/d
Q 5.633750349685232 9.5935e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
ALN [SET] .0408373333128795 n/a
NK [SET] 2.6 n/a
NM [SET] 2. n/a
NN [SET] 3. n/a
R0 [SET] 5. n/a
  Orbit Determination Parameters
   # obs. used (total)      1208  
   data-arc span      3406 days (9.33 yr)  
   first obs. used      2010-10-07  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69746  
   source      ORB  
   producer      Javier Roa  
   solution date      2020-Feb-05 17:54:21  

Additional Information
 Earth MOID = .717461 au 
 Jupiter MOID = .284224 au 
 T_jup = 2.777 
[ 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 14.3   0.7 K182/7 2 parameter fit from 427 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a K182/7 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2004.4   164P/2004 Y1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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